CN114414070A

CN114414070A - Correction system, correction device, and correction method

Info

Publication number: CN114414070A
Application number: CN202111489142.5A
Authority: CN
Inventors: 王浩
Original assignee: Hangzhou Mission Infrared Electro Optics Technology Co Ltd
Current assignee: Hangzhou Mission Infrared Electro Optics Technology Co Ltd
Priority date: 2020-12-07
Filing date: 2021-12-07
Publication date: 2022-04-29
Anticipated expiration: 2041-12-07
Also published as: CN114414070B; WO2022121901A1; CN114414071B; CN114414071A

Abstract

The invention provides a correction system, at least 1 correction control device and a processing device communicated with the correction control device; the correction control device includes: the shooting part is used for shooting to obtain thermal image data; a correction control unit that controls correction processing based on the base image information; part or all of the influencing factors, part or all of the basic image information, and the corresponding relation between part or all of the influencing factors and the basic image information, wherein one or more or all of the influencing factors are derived from the processing device or the correction control device; the basic image information used for the correction processing is the basic image information determined according to the corresponding relationship based on the corresponding relationship between the influence factor and the basic image information, according to the acquired data of the influence factor. Thus, the existing problems are solved.

Description

Correction system, correction device, and correction method

Technical Field

The invention discloses a correction control device and a correction control method, and relates to the field of application of infrared thermography.

Background

In the thermal image device, correction processing is carried out on thermal image data, which is an important link; the correction functions of reducing temperature drift, correcting images and the like are achieved. There are various embodiments for generating the calibration parameters from thermal image data captured by the obscuration optical path or the standard reference. For example, original thermal image data is obtained by shooting a picture washer, the AD value of each pixel of the thermal image data is corrected to a uniform specified value according to an algorithm (usually, a K value obtained by calibration is combined in the algorithm), and a correction parameter (often called as a B value) is formed by data including the correction value of each pixel; such imaging and thermometry correction techniques are well known in the art.

In a thermal image device with a shooting function, a baffle is an important component, and a basic image is generated by blocking a light path of a detector through filing (thermal image data representing the basic image is also commonly called a background image and the like, generally adopts an original AD value image and can be used for generating correction parameters) so as to obtain correction parameters related to thermal image data for correcting a scene of a detected object to be shot subsequently.

The baffle is positioned in front of the infrared detector, can be positioned in front of the lens, between the lens of the lens or can also be positioned between the lens and the detector; the blocking piece is started (blocked) to shield the light path of the detector in a timing mode, a manual mode and the like, and the blocking piece is started or closed generally in a driving mode of a blocking piece motor, a manual mode and the like.

At present, the thermal imaging device with the baffle has many defects, namely 3 obvious defects:

one disadvantage is that the live-action image is interrupted and frame missing during the starting process of the stop piece when the external target is observed;

another disadvantage is that the baffle is used for a long time and is easy to be blocked and the like;

yet another disadvantage is that the temperature drift is large, for example, when the temperature curve is generated by continuous temperature measurement, when the correction is performed by using a mask, the temperature value obtained by shooting the measured object during the correction is assumed to be 1 minute, and the temperature value may drift slowly and reach an accurate value after the correction, and then a temperature obvious step is easily generated, as shown in fig. 10; is the user confused about whether the step is caused by the gear shift or the temperature of the object is changed? In theory steps can be reduced by more intensive binning, but in practice another problem that ensues is that the heating of the shutter motor causes the shutter temperature to be non-uniform affecting the accuracy of the temperature and also causing frequent and unfeasible image breaks.

Accordingly, it is appreciated that there is a need for a calibration control that addresses some or all of the problems that currently exist.

Disclosure of Invention

The present invention provides a calibration control device, a calibration system and a calibration control method,

in one aspect, a calibration control apparatus includes:

the shooting part is used for shooting to obtain thermal image data;

a correction control unit that controls correction processing based on the base image information;

the basic image information for the correction processing includes the following two cases, and one of them is executed at a time:

case 1: obtaining basic image information based on the light path of the shielding detector or based on thermal image data acquired by shooting in the period of a standard reference body;

case 2, comprising at least one of:

1) determining basic image information according to the corresponding relation based on the corresponding relation between the influence factors and the basic image information and the acquired data of the influence factors;

2) based on the basic image information obtained from the communication section;

3) and processing the obtained basic image information according to any two items.

Further, recording the basic image information obtained in the case 1 and the corresponding influence factors thereof; or the corresponding relation is also added to the corresponding relation between the influence factors and the basic image information.

In still another aspect, a calibration control apparatus includes:

the shooting part is used for shooting to obtain thermal image data;

determining the basic image information according to the acquired data of the influence factors and the corresponding relation when the corresponding relation between the influence factors and the basic image information is based; the base image information serves as base image information for correction processing;

when the data of the acquired influence factors are based on the corresponding relation between the influence factors and the basic image information, the basic image information cannot be determined according to the corresponding relation; a basic image information acquisition instruction is generated to obtain basic image information as basic image information for correction processing based on thermal image data acquired during occlusion of the optical path of the detector or photographing of the standard reference body. Or acquiring basic image information through the communication part;

further, a correction control unit for controlling a correction process based on the determined base image information in accordance with a correction instruction; or, the correction control unit determines, based on the influence factor obtained by the detection, the base image information corresponding to the influence factor based on the correspondence relationship when the influence factor exceeds a predetermined range, and controls the correction process; .

Further, when the corresponding basic image information cannot be found according to the obtained influence factors, the basic image information can be obtained again; including one or more of the following

1) Generating an acquisition instruction of the basic image information, such as a filing instruction, and acquiring the basic image information according to thermal image data acquired by photographing an optical path of the shielding detector;

2) generating an acquisition instruction of the basic image information, such as a filing instruction, and acquiring the basic image information according to thermal image data acquired by photographing an optical path of the shielding detector; and associating and recording the basic image information and the corresponding influence factors to form a corresponding relation between the basic image information and the corresponding influence factors.

3) The obtained basic image information may include one or more of thermal image data, correction parameters, based on the occlusion detector optical path, or based on a standard reference;

the thermal image data comprises one of the following conditions, namely the thermal image data obtained by shooting based on an optical path of a shielding detector or based on a standard reference object, or the thermal image data obtained by processing based on the thermal image data, or the thermal image data obtained by participating in the processing based on the thermal image data obtained by shooting;

further, the correction parameter includes one or a combination of the following conditions:

1) calculating and processing the obtained correction parameters and/or correction algorithms according to the obtained thermal image data;

the thermal image data is one or a combination of the above conditions;

2) the thermal image data participates in obtaining correction parameters; for example, the correction parameters are obtained according to the case 1), and the correction parameters corresponding to the adjacent influence factors are obtained according to a specific algorithm such as average based on the currently obtained influence factors; for example, correction parameters are obtained by calculating thermal image data and are obtained after manual modification;

depending on the correction implementation and the application, there may be a plurality of configurations of the base image information.

Further, the influencing factor includes one of the following factors:

1) internal influencing factors, 2) external influencing factors; 3) a condition-affecting factor;

in order to obtain the data of the above influencing factors, the method comprises the following steps:

1) based on the calibration control device itself or a sensor connected thereto;

2) the image can be obtained through a communication interface of the thermal imaging device;

3) obtaining state influencing factors by correcting the related setting state or function module of the control device;

further, the obtained influence factors and the corresponding basic image information thereof include one or a combination of the following conditions:

1) according to the influence factors obtained by detection and according to the corresponding relation, if corresponding basic image information is not obtained, filing to obtain the basic image information; the corresponding influence factors and the basic image information are associated and recorded to obtain a corresponding relation;

2) receiving a specified instruction, and acquiring data of corresponding influence factors and corresponding basic image information; and associating the records to obtain the corresponding relationship.

In another aspect, a calibration control apparatus includes:

the shooting part is used for shooting to obtain thermal image data;

the basic image information used for the correction processing is the basic image information determined according to the corresponding relationship based on the corresponding relationship between the influence factor and the basic image information, according to the acquired data of the influence factor.

In still another aspect, a calibration control apparatus includes:

the shooting part is used for shooting to obtain thermal image data;

a correction control unit that controls correction processing based on the first base image information;

the first basic image information used for correction processing is determined according to the corresponding relation and the acquired data of the influence factors based on the corresponding relation between the influence factors and the basic image information;

determining second basic image information according to the acquired data of the influence factors and the corresponding relation when the second basic image information is based on the corresponding relation between the influence factors and the basic image information; the correction control section controls the correction process based on the second base image information.

In still another aspect, a calibration control apparatus includes:

the shooting part is used for shooting to obtain thermal image data;

a correction control section for performing correction processing based on the base image information;

the correction control part is used for performing correction processing by adopting the basic image information corresponding to the sensor data according to the sensor data obtained by the sensor device based on the corresponding relation between the sensor data and the basic image information in the storage medium;

the sensor data is obtained based on the calibration control device itself or a sensor connected thereto.

Further, a processing unit that obtains a processed first image and/or first analysis data when performing correction processing based on the first base image information; when correction processing is performed based on the second base image information, a processed second image and/or second analysis data is obtained. In this case, no image pause may occur.

Further, the basic image information may include one or more of thermal image data, correction parameters, and correction algorithms; the basic image information for the correction process may include one or more of thermal image data, correction parameters, correction algorithms;

further, the base image information includes one or a combination of the following cases:

1) based on an optical path of a shielding detector or based on a standard reference object, shooting obtained thermal image data, or performing processing based on the thermal image data, or participating in processing based on the thermal image data obtained by shooting to obtain basic image information;

2) manually configured base image information;

3) obtaining basic image information according to an algorithm according to basic image information corresponding to the influence factors in the specified range;

4) the basic image information is not limited to be obtained by the local machine, and can also be obtained by other thermal image devices;

further, the thermal image data as the basic image information includes one of the following cases:

1) blocking a detector light path, or shooting obtained thermal image data based on a standard reference object, or obtaining thermal image data after the thermal image data is processed; or the thermal image data obtained by shooting participates in processing the obtained thermal image data;

2) thermal image data acquired during the starting period of the baffle or thermal image data acquired after the thermal image data is processed or participates in processing;

3) manually configured thermal image data;

4) obtaining thermal image data according to an algorithm according to the thermal image data corresponding to the influence factors in the specified range;

5) based on currently obtained influence factors, obtaining thermal image data corresponding to the influence factors in a specified range according to a specific algorithm;

1) calculating and processing the obtained correction parameters according to the obtained thermal image data; the thermal image data is one or a combination of the above conditions;

2) when the infrared detector is shielded by the baffle, one or more frames of thermal image data are obtained, and correction parameters are calculated according to an algorithm;

3) the thermal image data participates in obtaining correction parameters;

3) manually configured correction parameters;

4) obtaining correction parameters according to an algorithm according to correction parameters corresponding to the influence factors in the specified range;

further, the influencing factor comprises one of the following factors:

1) internal influencing factors; including at least one of a temperature representative of an interior space, a temperature of a device, a temperature of a lens portion, a temperature of a circuit board, and a temperature of a structure; may include data for 1 or more than 1 sensor;

2) external influence factors including data of one or more of ambient temperature, humidity, wind speed, wind direction, season, region, altitude, height, inclination, orientation, air pressure, speed during mounting, vibration, carrier, date, time, etc.;

3) the state influencing factors comprise one or more of a specific algorithm or program, a temperature grade, a frame frequency, a collected pixel, lenses with different field angles, the starting running time of the thermal image device and the like;

further, the acquired data of the influencing factors can have various conditions, including one or a combination of the following conditions:

1) according to the influence factors obtained by detection, when exceeding the specified range, obtaining corresponding basic image information according to the corresponding relation;

2) receiving a specified instruction, and acquiring data of corresponding influence factors; for example, receiving a correction instruction, and acquiring data of a corresponding influence factor, where the acquired influence factor includes one or more of the following cases;

the data of the acquired influencing factors or the data of the acquired influencing factors after being processed based on the data can be the specified time when the correction instruction is received, and the specified time comprises the specified time before, during or after the correction instruction or a certain time period; the correction instruction can be sent out according to a certain frequency, triggering according to a triggering condition, manual triggering and the like; the frequency may be configured to be less than one of 1 minute, 30 seconds, 20 seconds, 10 seconds, 5 seconds;

the source of the influencing factor data includes one or a combination of the following

1) Acquired by a sensor;

2) based on the calibration control device itself or a sensor connected thereto;

3) influencing factors that can be obtained by the functional components of the state factor;

4) data of the influencing factors acquired through the communication part;

5) data of manually set influencing factors;

further, the corresponding relationship between the influencing factors and the basic image information may include one or more of the following conditions:

1) in the preparation of the composite material, the composite material is prepared in advance,

2) pre-stored in a storage medium of the correction control device;

3) according to the influence factors obtained by the correction control device or the sensor connected with the correction control device, or according to the influence factors obtained by the correction control device or the sensor connected with the correction control device in combination with other modes, corresponding relation is formed between the basic image information corresponding to the influence factors, and the basic image information is prepared in advance and stored in a storage medium; the basic image information can be obtained based on thermal image data obtained by the correction control device through previous filing;

4) the corresponding relation obtained through the communication part;

5) partial information of the corresponding relation is obtained by the communication part, and partial information is obtained by the correction control device;

6) calculating and obtaining the corresponding relation between other influence factors and the basic image information;

7) updated according to certain conditions;

8) obtained by the calibration control device itself;

9) the corresponding relation between the influencing factors and the basic image information can be 1 group or more.

Further, determining basic image information based on the corresponding relation between the influence factors and the basic image information; the basic image information may be determined based on the correspondence stored in the correction control apparatus itself, or the correspondence obtained by the communication section, or the correspondence stored in another apparatus connected to the communication section;

including one or more of the following:

1) directly corresponding;

2) selected within an allowed specified range;

3) obtained by calculation;

4) obtaining basic image information corresponding to multiple groups of influence factors in a specified range through algorithm calculation;

in still another aspect, a calibration control apparatus includes:

the acquisition part is used for acquiring thermal image data;

an influence factor acquiring unit for acquiring data of influence factors;

and a basic image information recording part for recording the basic image information obtained by shooting based on the starting period of the mask or the standard reference body and the data of the corresponding image factors in a correlated mode.

Further, the image processing apparatus includes a correspondence relation generating unit that extracts a plurality of influence factors and corresponding base image information according to a specific rule or algorithm to form a correspondence relation.

Further, the basic image information recording unit continuously records the obtained influence factors and the corresponding basic image information at a predetermined frequency; a corresponding relation generating part for extracting the basic image information exceeding the specified difference range and the corresponding influence factor according to the continuously recorded data and constructing the relation between the influence factor and the basic image information;

or, the basic image information recording part records the obtained influence factors and the corresponding basic image information; the correspondence relation generating unit extracts the base image information exceeding the predetermined difference range and the corresponding influence factor, and constructs a relation between the influence factor and the base image information.

In another aspect, a control system includes:

at least 1 calibration control device and a processing device communicating with the calibration control device;

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

the influence factor, the basic image information, the corresponding relation between the influence factor and the basic image information, wherein one or part of the influence factor, the basic image information and the corresponding relation between the influence factor and the basic image information are derived from the processing device;

Further, a portion of the influencing factors are derived from the processing device; part of the corresponding relation is derived from the processing device;

further, the processing device is used for providing the influencing factors and/or the basic image information to the correction control device;

further, the correction control means determines the basic image information based on the information supplied from the processing means, and performs control of the correction processing;

furthermore, the correction control device is provided with a blocking piece mechanism, and can obtain thermal image data obtained by blocking the light path of the detector or shooting a calibration reference object.

Further, a portion of the influencing factors are derived from the processing device; part of the correspondence is derived from the processing means.

The processing device is used for providing the influencing factors and/or the basic image information to the correction control device;

the correction control device determines the basic image information according to the information provided by the processing device and controls the correction processing.

In yet another aspect, a calibration system includes:

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

a processing device comprising

And a basic image information recording part for recording basic image information obtained by shooting by the occlusion detector or the standard reference body and data of the corresponding image factors in a correlated manner.

Still another correction control device of the present invention includes:

the shooting part is used for shooting to obtain thermal image data;

a correction instruction section for issuing a correction instruction;

a correction control section for performing correction processing according to the base image information based on the correction instruction;

the correction control part is used for carrying out correction processing by adopting the basic image information corresponding to the sensor data according to the sensor data obtained by the sensor device based on the corresponding relation between the sensor data and the basic image information; the sensor data is obtained based on the calibration control device itself or a sensor connected thereto.

Further, the sensor data includes at least 1 temperature sensing data. Or comprises temperature sensing data at least two positions of a lens cover, a lens, a baffle, a detector, an acquisition circuit of the detector, a shell, the outside of the shell, a front shell, a radiating fin, a processing circuit board and a control circuit board;

still another correction control device of the present invention includes:

the shooting part is used for shooting to obtain thermal image data;

the correction control part adopts the basic image information if the temperature sensing data obtained based on the temperature sensing device accords with the corresponding relation between the temperature sensing data and the basic image information; if the corresponding basic image information is not found, sending out a starting instruction of the gear; a baffle control part for controlling the action of the baffle; the baffle is positioned at the front part of the infrared detector; controlling the baffle to shield the infrared detector based on the indication of the baffle starting;

the basic image information recording part is used for recording basic image information based on a recording instruction, and the basic image information is thermal image data or related parameters obtained when the infrared detector is shielded by the baffle; the basic image information is recorded in a way of being associated with temperature sensing data obtained by at least one temperature sensing device positioned in the correction control device; the basic image information recording section is configured to obtain a relationship between the temperature sensing data obtained by the temperature sensing device and the basic image information.

The correction control method of the present invention includes:

a control step of acquiring thermal image data by shooting and carrying out correction processing according to basic image information;

or according to the basic image information, carrying out correction processing and shooting to obtain thermal image data;

case 2, comprising at least one of:

Still another correction control method of the present invention includes:

Further correction control method

A correction control step of performing control of correction processing based on the first base image information;

The correction control method of the present invention includes:

acquiring thermal image data and influencing factors;

and a basic image information step, which is used for correlating and recording basic image information obtained based on the shooting of an occlusion detector (such as a period when the mask is started) or the shooting of a standard reference body and the data of the corresponding image factors. Or further comprises an extraction step, namely extracting a plurality of influence factors and corresponding basic image information according to a specific rule or algorithm to form a corresponding relation.

The correction method of the invention comprises the following steps:

the system is applied to a correction system and comprises at least 1 correction control device and a processing device communicated with the correction control device;

the correction control means executes steps including:

one or part of the influence factors, the basic image information and the corresponding relation between the influence factors and the basic image information is derived from the communication step of the processing device and the correction control device;

The correction control method of the present invention includes:

acquiring thermal image data and influencing factors;

and a basic image information step for associating and recording basic image information obtained based on the shooting of the occlusion detector or the shooting of the standard reference body and data of the corresponding image factors. Or further comprises an extraction step, namely extracting a plurality of influence factors and corresponding basic image information according to a specific rule or algorithm to form a corresponding relation.

Other aspects and advantages of the invention will become apparent from the following description.

Description of the drawings:

fig. 1 is an electrical block diagram of a calibration control device according to embodiment 1.

Fig. 2 is an exemplary diagram of a correction control apparatus of embodiment 1.

Fig. 3 shows an example of a relationship table in which temperature-sensitive data and base image information correspond to each other.

Fig. 4 represents another example of the relationship table in which the influence factors and the base image information correspond to each other.

Fig. 5 is an example of a flow showing the control procedure.

FIG. 6 is a schematic view of a hinged flap;

FIG. 7 is a schematic of a simple pendulum shim;

fig. 8 represents another example of the relationship table in which the influence factors and the base image information correspond to each other.

Fig. 9 represents an example of a calibration control sensor arrangement.

FIG. 10 represents a temperature profile obtained with a prior art gear shift correction;

FIG. 11 represents a temperature profile obtained after correction using a base image corresponding to an influencing factor;

FIG. 12 is a diagram showing examples of embodiment 2 and embodiment 3;

although the embodiments of the present invention are described below, in embodiment 1, the correction device with a thermal image shooting function (hereinafter, referred to as a correction control device 9) is exemplified, and the correction device may be various portable thermal imaging devices, online thermal imaging devices, or thermal imaging devices mounted on unmanned planes, vehicles, robots, and the like. The device is not limited to a thermal imaging device, and can also be applied to various shooting devices with baffle shielding sensors for correction.

Preferably, the correction control device includes: the shooting part is used for shooting to obtain thermal image data;

Preferably, the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

the basic image information for correction processing includes the following 2 cases, and one of them is executed at a time:

case 1: basic image information obtained based on thermal image data acquired during blocking of the detector light path (such as during gear shifting) or during shooting of a standard reference body; such a case includes basic image information obtained based on one or a combination of the acquired thermal image data, or the acquired thermal image data subjected to a prescribed process, or the acquired thermal image data participating in a prescribed process, or the like;

case 2, comprising at least one of:

The basic image information may include one or more of thermal image data, correction parameters, and correction algorithms; the basic image information for the correction process may include one or more of thermal image data, correction parameters, correction algorithms;

the base image information includes one or more of the following:

2) manually configured base image information;

3) according to basic image information corresponding to influence factors in a specified range, wherein the basic image information can be one or more of basic image information, and the basic image information is obtained by processing the basic image information according to an algorithm;

the basic image information is not limited to be obtained by the local machine, and can also be obtained by other thermal image devices; for example, the basic image information obtained by other thermal image devices is applied to all the thermal image devices in the batch, or is also subjected to manual configuration and the like.

Specifically, the thermal image data includes one of the following conditions:

1) blocking a detector light path or shooting thermal image data obtained based on a standard reference object; such as thermal image data acquired during the activation of the patch; such as basic image information obtained based on a standard reference, such as an object whose temperature field radiates uniformly and can fill up the detector pixels, such as a uniform wall surface or the like;

it should be noted that when the method is used for obtaining the basic image information, the obtained thermal image data is shot based on the light path of the shielding detector or based on the standard reference object, and the original AD value thermal image data is preferably indicated to be shot, but the method can also be designed to be used for shooting the obtained thermal image data by adopting the previous correction parameters; the algorithm is slightly different when the two are subsequently converted into the correction parameters.

2) Case 1) the obtained thermal image data is processed to obtain thermal image data;

in one example, obtaining multi-frame thermal image data and processing the obtained one-frame thermal image data; for example, in order to reduce the amount of stored data, the thermal image data obtained after the pixels are reduced is used as basic image information;

the method comprises the steps of obtaining thermal image data and participating in the obtained thermal image data; for example, according to influence factors obtained in an optical path of the shielding detector (such as during the starting period of a baffle) and thermal image data obtained, averaging the thermal image data and thermal image data corresponding to adjacent influence factors in a specified range, such as front and back, to obtain thermal image data as basic image information;

3) manually configured thermal image data; for example, the thermal image data of the case 1) is obtained before shipment from a factory, and the thermal image data obtained after manual modification is performed;

4) selecting one or more of the thermal image data according to the thermal image data corresponding to the influence factors in the specified range, and obtaining the thermal image data according to an algorithm; for example, thermal image data corresponding to a predetermined range, for example, the influence factors adjacent to each other in the front and back direction, is obtained according to a specific algorithm, such as averaging, based on the currently obtained influence factors; for example, when the infrared detector is shielded by the barrier, thermal image data obtained by averaging a frame of thermal image data, the closest basic image information (such as thermal image data with the closest influence factors) in the participating and pre-prepared basic image information;

generally, when thermal image data is used as basic image information, calculation of the thermal image data is required subsequently to obtain correction parameters. In one example, when the infrared detector is shielded by the barrier, one or more frames of thermal image data (e.g., original AD value thermal image data) obtained as basic image information may be used to calculate correction parameters according to an algorithm for correcting subsequent thermal image data. The correction control means may be configured with an algorithm that calculates the thermal image data as correction parameters.

In particular, the correction parameters include one or more of the following:

1) calculating and processing the obtained correction parameters according to the obtained thermal image data; the thermal image data is one or more of the above conditions;

in one example, when the infrared detector is shielded by the barrier, the correction parameters can be calculated according to an algorithm from one or more frames of thermal image data, and the correction parameters are used for correcting subsequent thermal image data.

In one example, when the infrared detector is shielded by the barrier, the correction parameters may be calculated according to an algorithm for correcting the subsequent thermal image data of a frame obtained after processing, such as averaging, of the obtained multiple frames of thermal image data.

In one example, when the infrared detector is shielded by the baffle, the correction coefficient of thermal image acquisition or the control parameter of the detector is calculated for one frame of thermal image data, and the acquisition of subsequent thermal image data is corrected;

in one example, the obtained thermal image data participates in the obtained correction parameters; for example, the correction parameters obtained by calculation processing according to the acquired thermal image data are combined with the correction parameters corresponding to the influence factors adjacent to each other in a specified range, such as the front and rear adjacent influence factors, based on the currently obtained influence factors, and the correction parameters are obtained according to a specific algorithm, such as average;

2) manually configured correction parameters, such as correction parameters obtained by calculating thermal image data and correction parameters obtained after manual modification;

3) according to the correction parameters corresponding to the influence factors in the specified range, one or more of the correction parameters can be selected, and the correction parameters are obtained according to an algorithm; for example, a correction parameter to be obtained based on the currently obtained influence factor, in accordance with a specific algorithm such as averaging, a correction parameter corresponding to a prescribed range, for example, the influence factors adjacent in the front and rear;

the correction parameters may include correction parameters for each pixel in the thermal image data, or may be correction parameters for only each pixel or a portion of pixels in a specific area.

A correction algorithm; in some cases, the thermal image data or correction parameters may not be pre-stored, but only the correction algorithm; correction parameters obtained by a correction algorithm, for example, based on correction parameters corresponding to the influence factors in a predetermined range; in one example, based on the currently obtained influencing factor, correction parameters corresponding to a prescribed range, for example, adjacent influencing factors in front and back, are obtained according to a weighted proportion of a specific algorithm, such as average or proximity; the amount of data storing the correction parameters can be reduced.

In a preferred example, the foundation image information includes at least two of the above-described information; depending on the correction implementation and the application, there may be a plurality of configurations of the base image information.

The influencing factors (external, internal, state, obtained by the communication part) include one of the following:

1) internal influencing factors, such as the temperature of a space or a component which reflects the state of an internal temperature field, at least one of the temperature of an internal space, the temperature of a device, the temperature of a local part of a lens, the temperature of a circuit board and the temperature of a structural part; the temperature of the internal space is, for example, one of the temperature of a probe cavity (e.g., a space between the probe and the lens), the temperature of a space where the processing circuit board is located, and the like; temperature of the device such as temperature of the probe, temperature of the wafer (e.g., wafer mounted), temperature of the processing chip; the temperature of the lens, e.g. the temperature of the respective lens, the temperature of the lens structure; the temperature of the circuit board, for example, the temperature of a core acquisition circuit board (signal preprocessing circuit), a main control circuit board and a processing circuit board; the temperature of the structural components, such as cooling fins, inner walls of the thermal imaging device housing, etc.; may include data for 1 or more than 1 sensor;

in one example, 1 temperature sensation is included; in one example, 2 temperature sensations are included; in 1 case, 3 temperature sensations were included; in 1 case, 4 temperature sensations were included;

2) external influencing factors, such as one or more of ambient temperature, humidity, wind speed, wind direction, season, region, altitude, height, inclination, orientation, air pressure, pressure of an instrument, speed of mounting, vibration, carrier, date, time, and the like;

3) state influencing factors which have changing influence on basic image information, such as one or more of specific algorithms or programs, such as temperature ranges, frame rates, collected pixels, lenses adopting different field angles, the starting operation time of the thermal imaging device and the like; the state can be determined according to the setting of the thermal imaging device (which can be manual, or trigger, automatic, and the like); of course, according to different embodiments, the same condition influencing factor has different influences on the basic image information, in one example, the self frame rate of the detector is divided into a plurality of ranges such as 30HZ and 60HZ, and the corresponding basic image information may be different in the condition of selecting the frame rates of 30HZ and 60HZ due to different acquisition integration times, while in another example, the self frame rate of the detector is 60HZ, and the corresponding basic image information may be the same even though the acquisition frame rates may be set to 30HZ and 60 HZ.

In different application scenarios, the influence factors may have a changing influence on the base image information, and therefore, the corresponding relationship between the influence factors and the base image information can be considered. (establishing correspondence, see example 3 for details)

In order to obtain the data of the above-mentioned influencing factors, preferably based on sensors, for example, which are attached to or attached to the calibration control device itself, the data may be obtained by being mounted on the thermographic device or by having corresponding sensors attached thereto; in one example, a thermal image device is additionally provided with a temperature sensor on an external shell to acquire data representing ambient temperature, and a control circuit board is additionally provided with a temperature sensor to acquire data representing a local temperature field of the control circuit board inside an instrument; specifically, in one example, the influence factors related to the change of the base image information may be obtained as follows; deploying more sensors inside and outside the instrument, and making a corresponding relation between the changes as fine as possible and the basic image information; and then removing the sensor with small change of the numerical value on the basic image information, and finally leaving the sensor with large influence on the change of the basic image information as a basis for finally manufacturing the corresponding relation table and deploying the sensor inside and outside the instrument. Different sensor configurations may result depending on the application, different configurations of the thermal imaging device.

As shown in fig. 8 to 9, the temperature is set in the case outside W1, the lens portion W2, and the heat sink W3 of the calibration control device, and the correspondence relationship shown in fig. 8 is stored in the storage medium of the calibration control device.

Not limited to this, some data may be obtained through the communication portion of the thermal image device, such as the ambient temperature, the humidity, the wind speed, etc., for example, the corresponding sensor data is collected to a specific control device, and the thermal image device may obtain the data collected by the control device through the communication portion.

If more sensors are configured, the corresponding relation of richer basic image information is provided, the accuracy of temperature measurement and image correction can be improved, but the complexity in assembly can also be caused; according to different application scenes of the thermal image device, corresponding sensors are generally configured for factors with the largest influence; in a preferred example, the temperature sensing data includes 3 temperature sensing data, such as a temperature of a lens, a temperature of a cavity between the probe and the lens, and a temperature of a processor; the temperature data may be derived from the temperature obtained by the temperature of some chips themselves, and in another example, the temperature is obtained by a configured temperature sensor (such as a temperature sensor). The data such as temperature sensing can reflect the change of the temperature field in the thermal image device, and when the change exceeds a specified range, the corresponding basic image information also changes.

The thermal image device may cause the change of the basic image information under different environmental working temperatures and thermal radiation inside the thermal image device, so that in an optimal mode, the influence factors possibly caused, including the external influence factors of the thermal image device and the internal influence factors of the thermal image device, and the corresponding basic image information are made into a corresponding table according to a certain data format, and the subsequent calling is facilitated. Preferably, the influencing factors and the corresponding basic image information are stored in a storage medium in advance; preferably, the acquired data of the influencing factors and the corresponding basic image information are stored in the storage medium by controlling the filing.

The influencing factor comprises one of an internal influencing factor, an external influencing factor and a state influencing factor; influencing factors preferably taken into account, including at least internal influencing factors, e.g.

Another preference, includes both internal and external influencing factors, e.g.

It is further preferred to include internal, external, condition influencing factors to facilitate the deployment of high precision thermal imagery devices, e.g.

Various configurations may be used, as desired by the application, but at least one of the factors described above is included.

The acquired data of the influencing factors can be in various situations, for example, one or more of the following situations are included:

1) acquiring and detecting the acquired influence factors according to the influence factors detected and acquired by the control part, for example, according to a specified frequency or according to a condition trigger instruction, and acquiring corresponding basic image information according to the corresponding relation when the acquired influence factors exceed a specified range;

for example, the control unit detects the influence factor obtained by the sensor at a predetermined frequency (e.g., a detection frequency of 1 time per 1 second), and if the influence factor exceeds a predetermined range, including the type of the influence factor or data of the influence factor, and if one of the types of the influence factor or the data exceeds the predetermined range, the control unit obtains corresponding base image information from the correspondence relationship, and applies the base image information to the subsequent correction processing. For example, data of the influencing factors (e.g., a plurality of groups of temperature sensing) is detected once per second, and when one of the data exceeds the predetermined range by 0.5 ℃, the base image information corresponding to the influencing factor exceeding the predetermined range is selected.

2) Receiving a specified instruction, and acquiring data of the influencing factors;

for example, receiving a correction instruction, and acquiring data of a corresponding influence factor, where the acquired influence factor includes one or more of the following cases;

for example, the predetermined time may be a predetermined time when the correction instruction is received, and the predetermined time includes data of the influencing factor acquired before, during, or after the correction instruction, or data of the influencing factor acquired after processing based on the data;

in one example, when the correction instruction is obtained, newly obtained temperature sensing data is obtained;

in one example, if the temperature is stored in the temporary storage unit at a frequency of 1 second and the cycle storage is performed 5 times in a refresh cycle, when the correction instruction is received, the data closest to the time of the correction instruction is acquired, and the previous data may be selected;

in one example, the data of the influencing factor may be data obtained after a plurality of data obtained within a certain time are obtained according to a specific algorithm; for example, temperature sensing data obtained by averaging 4 pieces of temperature sensing data before the correction instruction and 1 piece of temperature sensing data after the correction instruction are received;

the control section 8 may be an example of a correction instruction section; the correction instruction can be sent out according to a certain frequency, triggering according to a triggering condition, manual triggering and the like; the indication of correction may be given at a fixed frequency, such as at a timed (e.g., 1 minute) timing; or the frequency can be changed, for example, the correction instruction is sent for 20 seconds within 5 minutes after the computer is started, and the correction instruction is sent according to 1 minute after the computer is started for 5 minutes; generating a correction indication upon a conditional trigger, such as detection of a change in sensor data, or an external trigger indication;

preferably, when correction is performed using base image information prepared in advance, the correction frequency can be increased; in one example, the frequency of the correction instruction may be configured to be one of 1 minute, 30 seconds, 20 seconds, 10 seconds, and 5 seconds; therefore, the temperature drift can be reduced, and the defects of heating of a baffle motor and the like caused by frequent gear shifting to obtain basic image information are avoided. According to different application requirements, such as the corresponding relation between the influence factors and the basic image information is configured in advance, various correction frequencies can be configured, and even higher correction frequencies can be configured; in one example, theoretically, each frame may be corrected according to the basic image information corresponding to the detected influencing factor.

10-11, FIG. 10 is a graph of a temperature trend of a thermostatic object photographed by a gear shift correction according to the prior art, wherein a step is generated due to a temperature drift caused by an inability to perform a dense correction; fig. 11 is a temperature trend curve obtained by correcting the basic image information obtained by using the corresponding relationship, and since the corresponding basic image information can be changed in time according to the change of the influence factor to be used for the correction process, the drift can be greatly reduced.

Preferably, the calibration control device includes:

the shooting part is used for shooting to obtain thermal image data;

The first base image information and the second base image information referred to herein represent different base image information;

a processing unit 2, configured to, when performing correction processing according to the first basic image information, for example, process thermal image data obtained by subsequent shooting by using the determined first basic image information, to obtain a processed first image and/or first analysis data; when correction processing is performed according to the second basic image information, for example, thermal image data obtained by subsequent shooting is processed by using the determined second basic image information, and a processed second image and/or second analysis data is obtained; in this case, no image pause may occur.

Sources of influence data include one or more of the following

1) Acquired by a sensor; sensor data obtained by the sensor device, for example, based on the calibration control apparatus itself or a sensor connected thereto;

2) influence factors that can be obtained by a function component of the state factor, such as the control section 8, such as the state influence factors obtained by time, a set temperature measurement profile, a lens identification component, and the like;

3) data of the influencing factors acquired through the communication part; for example, the data of the influence factors acquired by other external sensors such as the environment temperature, the humidity and the wind speed in the environment where the communication part is located can reduce the number of the sensors of the correction control device. Such as factors of influence derived from weather station data.

4) Data of manually set influencing factors;

the corresponding relationship between the influencing factors and the basic image information may be one or more of the following conditions:

1) prepared in advance, as stored in advance in a storage medium; for example, the correspondence relationships shown in fig. 3, 5, and 8 may be stored in advance in a storage medium of the correction control device;

preferably, the corresponding relationship is formed by combining the corresponding basic image information according to the influence factors obtained by the correction control device or the sensor connected with the correction control device, or according to the influence factors obtained by the correction control device or the sensor connected with the correction control device in other modes, and the basic image information is prepared in advance and stored in a storage medium; preferably, the basic image information can be obtained based on thermal image data obtained by the correction control device through previous filing;

in one example, the base image information is stored in a storage medium of the correction control device 9 in correspondence with an influence factor such as temperature-sensitive data or the like for subsequent use; in one example, the preparation is performed before shipment;

in one example, the method is not limited to the local machine, and may also be obtained by other thermal image devices (for example, corresponding relationships obtained by other thermal image devices in the same batch);

2) the corresponding relation obtained through the communication part; for example, the correspondence relationship shown in fig. 3, 5, and 8 may be obtained by the communication unit; for example, basic image information, for example, obtained by other thermal imagery devices, is applied for use in all the thermal imagery devices of the batch. In one example, when a barrier mechanism of the thermal image device itself fails or does not have the barrier mechanism, a corresponding relationship obtained by a similar structure or a thermal image device (preferably having the barrier mechanism) having a similar influence factor such as a working environment may be applied to the thermal image device;

the complete corresponding relation is not limited to be obtained through the communication part, part of information can be obtained through the communication part, and the rest information can be obtained through the correction control device; in one example, the data of the influencing factors are obtained according to the communication part, the basic image information is obtained according to the self-filing of the correction control device, and the data and the basic image information are corresponding to obtain the corresponding relation;

3) calculating and obtaining the corresponding relation between other influence factors and the basic image information; for example, based on the existing influence factors in the predetermined range and the corresponding basic image information thereof, the newly obtained influence factor data in the predetermined range is weighted according to the basic image information of two adjacent influence factors to calculate and obtain the influence factors and the corresponding basic image information thereof;

4) updated according to certain conditions; in one example, the correction control device stores a correspondence relationship in advance, and can update the correspondence relationship after an operation or update instruction for a predetermined period; for example, every three months for a specified period, re-filing to obtain basic image information, comparing the newly obtained basic image information with the basic image information prepared in advance according to the basic image information corresponding to the corresponding influence factors, or comparing the corrected thermal image data or the corrected analysis values with the basic image information, and updating the corresponding relation between the influence factors and the basic image information when the allowable values are exceeded; and partial or whole updating can be carried out according to the corresponding relation between the newly obtained influence factors and the basic image information.

5) Obtained by the calibration control device itself; for example, influence factors are obtained by correcting a sensor of the control device or a connected sensor, and the corresponding relation between the influence factors and the thermal image data is obtained by combining a shielding detector or based on the shooting of a standard reference body; for example, basic image information obtained by filing is associated and recorded with the corresponding influence factors during filing so as to obtain the corresponding relation between the basic image information and the corresponding influence factors; facilitating subsequent calls.

Therefore, even if no correspondence relationship is prepared in advance, the correction control means (preferably with a stopper mechanism) can gradually accumulate the data to achieve the self-learning effect. In another example, if the influence factor is changed, the corresponding relationship may be reconstructed according to a new influence factor combination, that is, basic image information obtained by the archival correspondence.

6) The corresponding relation between the influence factors and the basic image information can be 1 group or more; for example, corresponding relations of different compositions are prepared under different working conditions; generally, corresponding relation groups of corresponding basic image information can be configured according to different types of influence factors; in one example, the correction control device prepares in advance a correspondence relationship between the influence factors and the base image information when the correction control device is applied to ground use and airborne use, respectively.

Determining basic image information based on the corresponding relation between the influence factors and the basic image information; the basic image information may be determined based on the correspondence stored in the correction control apparatus itself, or the correspondence obtained by the communication section, or the correspondence stored in another apparatus connected to the communication section; including one or more of the following:

1) directly corresponding; the obtained influence factors can directly find corresponding basic image information from the corresponding relation; as shown in FIG. 8, when the obtained influence factors (1: 1 ℃ C., 2:1 ℃ C.; 3:1 ℃ C.) were obtained, the basic image information 1 was determined;

2) selected from the allowed specified ranges; including the case where default certain sensor data is allowed; the obtained influence factors can directly select corresponding basic image information from the corresponding relation; for example, as shown in fig. 8, a correspondence table prepared in advance; the specified range is 0.5 ℃, and when the detected data of the influence factors are positioned between two groups of influence factors in the relation table, basic image information corresponding to the close influence factors is selected; the influence factors (1: 1 ℃ C. temperature, 2:1 ℃ C. temperature, 3:1 ℃ C.) correspond to the basic image information 1, and the corresponding basic image information 2 is determined assuming that the data of the influence factors acquired at a certain time are (1: 1 ℃ C. temperature, 2:1 ℃ C. temperature, 3:1.6 ℃ C.).

3) The basic image information is obtained through calculation, for example, one or more groups of basic image information corresponding to a plurality of groups of influence factors in a specified range are selected and are obtained through algorithm calculation; in one example, the obtained influence factor is located between two groups of influence factor data, such as (temperature is 1:1 ℃, temperature is 2:1 ℃; temperature is 3:1 ℃, corresponding to the basic image information 1) and (temperature is 1:1 ℃, temperature is 2:1 ℃; temperature is 3:2 ℃, corresponding to the basic image information 2), and the basic image information corresponding to the obtained influence factor can be determined through an algorithm such as weighting of the two basic image information;

obtaining an implementation of the correspondence according to the correction control device;

when the corresponding basic image information cannot be found according to the obtained influence factors, if the corresponding basic image information exceeds a specified range or sensor data with different types are newly added and the like, the basic image information can be obtained again; acquiring indication of the basic image information, for example, generating a filing indication, and acquiring the basic image information according to thermal image data acquired by shooting during filing; and associating and recording the basic image information and the corresponding influence factors to form a corresponding relation between the basic image information and the corresponding influence factors.

The obtained basic image information can comprise one or more of thermal image data and correction parameters based on the light path of the shielding detector or based on a standard reference object; the thermal image data includes one or more of the following:

1) shooting thermal image data obtained based on an optical path of an occlusion detector or based on a standard reference object, or processing the thermal image data obtained based on the thermal image data, or participating in processing the thermal image data obtained based on the thermal image data obtained by shooting;

in one example, the thermal image data obtained during the self-gear-making of the control device 9 is corrected; based on the acquisition indication of the basic image information, the thermal image data obtained when the baffle shields the light path of the infrared detector or the thermal image data after the thermal image data is processed by various algorithms can be obtained; when the light path of the detector is shielded, the obtained thermal image data can comprise 1 or more frames of thermal image data; preferably, original AD value thermal image data are obtained through shooting;

in one example, according to influence factors obtained during the starting period of the baffle and thermal image data obtained, the thermal image data and thermal image data corresponding to the influence factors in a specified range, such as adjacent influence factors in the front and back, are averaged to obtain thermal image data, and the thermal image data is used as basic image information;

the correction parameters include one or more of the following:

1) calculating and processing the obtained correction parameters and/or correction algorithms according to the obtained thermal image data; the thermal image data is one or more of the above conditions;

for example, due to different parameters (for example, different K values) of temperature ranges (different measurement range), different specific algorithms are adopted, which may cause different correction parameters obtained based on the thermal image data;

In one example, when the infrared detector is shielded by the barrier, the correction parameters can be calculated according to an algorithm for correcting subsequent thermal image data of a frame obtained after averaging multiple frames of thermal image data.

in one example, the thermal image data participates in the acquired correction parameters; correction parameters to be obtained in a prescribed range, for example, correction parameters corresponding to the influence factors adjacent in the front and back, in accordance with a specific algorithm such as averaging, based on the currently obtained influence factors;

in one example, the thermal image data is subjected to correction parameters obtained by calculation and subjected to artificial modification;

Wherein, the influencing factor comprises one of the following factors:

2) the image can be obtained through a communication part of the thermal imaging device;

the influence factors and the corresponding basic image information may be obtained in various ways, for example, one or more of the following cases are included:

1) according to the influence factors detected and obtained by the control part, if corresponding basic image information is not obtained, filing to obtain the basic image information according to the corresponding relation; correlating and recording corresponding influence factors such as temperature sensing data and the like and basic image information to obtain a corresponding relation;

2) receiving a specified instruction, and acquiring data of corresponding influence factors and corresponding basic image information;

the time of obtaining the corresponding two data is as close as possible, and part or all of the data of the influencing factors can be obtained before, during and after the thermal image data is obtained, and the data also comprises data obtained after a plurality of data obtained within a certain time are obtained according to a specific algorithm.

In one example, when the correction instruction is obtained, acquiring data of the influencing factor is performed; if receiving the correction instruction, acquiring data of a temperature sensor of the correction control device;

in one example, after the basic image information is acquired, the data of the influencing factors are immediately acquired again;

in one example, during a gear shift, data of influencing factors is acquired through sensors or setting states;

the correction processing can be used for correcting one of the control parameters of the detector, the signal reading and collecting parameters and thermal image data acquired subsequently. May include one or more calibration parameters, such as uniformity calibration, temperature measurement calibration, and the like; specifically, for example, one or more of the original AD value, the image, and the temperature measurement data are corrected for the thermal image data acquired subsequently; and processing the thermal image data acquired subsequently, for example, the thermal image data acquired from the current determination of the basic image information to the next re-determination of the basic image information according to the current determined basic image information. In one example, the correction process will be for each frame of subsequently obtained thermal image data; in another example, the correction process may be only for thermal image data of subsequently obtained partial frames; in another example, the correction process may be directed to only the thermal image data for a local area in the frame of thermal image data;

controlling correction processing according to the basic image information, wherein the control includes at least one of the above;

1) for example, the device can be used for correcting and controlling control parameters of a detector and/or signal reading parameters and correcting and controlling at least one of various relevant parameters of collected thermal image data; for example, various correction coefficients can be obtained through basic image information, and various related parameters of collected thermal image data are controlled; detector control parameters such as acquisition integration time, gain, bias voltage, etc.; the signal reading parameters control, for example, image resolution, frame rate, and the like.

2) For example, at least one of relevant parameters (such as uniformity correction, temperature measurement correction and the like) for processing the acquired thermal image data is subjected to correction control.

Moreover, when various influence factors (influence factors influencing the working temperature or the temperature measurement precision of the thermal image device) correspond to the basic image information so as to be called later, the correction effect can be well played, and the temperature measurement precision can be greatly improved.

Another advantage is that, because the basic image information can be called and corrected, the correction frequency can be increased, and it is ensured that image pause caused by image blocking does not occur when the gear is shifted, and errors of image or infrared temperature measurement caused by heating of a gear shifting motor possibly caused by frequent gear shifting also do not occur. Specifically, in one example, the infrared thermal image at a certain time is corrected by acquiring the correction coefficient through the basic image information, and the continuous images before and after correction can be prevented from being interrupted.

In a preferred embodiment, the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

case 2, comprising at least one of:

3) and processing the obtained basic image information according to any two items. For example, the basic image information obtained by processing, for example, averaging, the basic image information obtained in the two ways;

in one example, the basic image information used for the correction processing is the basic image information determined based on the correspondence between the influence factor and the basic image information, according to the acquired data of the influence factor, and according to the correspondence; or acquiring basic image information according to thermal image data acquired during the filing period.

In one example, the corresponding relation is stored in a processing device communicated with the correction control device, when the correction control device provides the acquired data of the influencing factors to the processing device, the processing device provides the basic image information to the correction control device according to the corresponding relation; or acquiring basic image information according to thermal image data acquired during the filing period.

In one example, the basic image information used for the correction processing is the basic image information determined based on the correspondence between the influence factor and the basic image information, according to the acquired data of the influence factor, and according to the correspondence; or the base image information obtained based on the filing and the base image information obtained in case 2 (for example, the base image information obtained by the communication section), both of which are processed, such as the base image information obtained after averaging.

In a preferred embodiment, when the data of the influence factors is obtained based on the corresponding relationship between the influence factors and the basic image information, the basic image information can be determined according to the corresponding relationship; the base image information serves as base image information for correction processing; when the data of the acquired influence factors are based on the corresponding relation between the influence factors and the basic image information, the basic image information cannot be determined according to the corresponding relation; a basic image information acquisition indication is generated to obtain basic image information as basic image information for correction processing based on the thermal image data acquired during occlusion of the detector optical path (e.g., during a gear shift) or during photographing of a standard reference body.

Further preferably, the basic image information is obtained based on the thermal image data acquired during the period of blocking the optical path of the detector (such as during the period of filing) or shooting the standard reference body, the basic image information is associated and recorded with the corresponding influence factors, and the corresponding relationship is added to the corresponding relationship between the multiple groups of influence factors and the basic image information, such as the corresponding tables in fig. 3, 4, 8, and the like, so as to facilitate subsequent use.

Preferably, the baffle control part is used for controlling the activation of the baffle;

a correction control section for performing control of correction processing in accordance with the determined base image information based on a correction instruction;

the determined basic image information includes one of two cases, that is, the corresponding basic image information is determined according to the corresponding relation between the influence factor and the basic image information and according to the data of the obtained influence factor (such as temperature sensing data obtained based on the temperature sensing device); and determining basic image information according to the indication of the starting of the baffles and thermal image data acquired during the starting of the baffles.

Preferably, if the corresponding basic image information cannot be determined or the comparison is needed to find the determined basic image information, an indication of the activation of the baffle is generated, and the basic image information is determined according to the thermal image data acquired during the activation;

further preferably, the base image information and the corresponding influencing factors are recorded based on a recording instruction; the corresponding relationship can also be added to the original corresponding relationship, such as a relationship table.

In a preferred example, the control system includes: at least 1 calibration control device and a processing device communicating with the calibration control device;

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

the influence factor, the basic image information, the corresponding relation between the influence factor and the basic image information, wherein one or part of the influence factor, the basic image information and the corresponding relation between the influence factor and the basic image information are derived from the processing device; in the operation process of the correction control device, one of partial or all influence factors, partial or all basic image information and the corresponding relation between partial or all influence factors and the basic image information comes from the processing device;

the basic image information used for correction processing is the basic image information determined according to the corresponding relation and the acquired data of the influence factors based on the corresponding relation between the influence factors and the basic image information; the base image information may be determined by one or a combination of the correction control means or the processing means. See example 2 for details;

in a preferred example, the correction control device includes:

the acquisition part is used for acquiring thermal image data; an influence factor acquiring unit for acquiring data of influence factors;

and a basic image information recording part for recording basic image information obtained by shooting by the occlusion detector or the standard reference body and data of the corresponding image factors in a correlated manner. See example 3 for details;

example 1

Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Note that the following examples are to be described for better understanding of the present invention, so the scope of the present invention is not limited and various forms within the scope of the present invention may be changed.

Fig. 1 is an electrical block diagram of a calibration control device 9 according to embodiment 1. Fig. 2 is an external view of the calibration control device 9 according to embodiment 1.

The calibration control device 9 includes an imaging unit 1, a processing unit 2, a flash memory 3, a patch control unit 4, a temporary storage unit 5, a communication I/F6, a memory card I/F7, and a control unit 8, and the control unit 8 is connected to the above-described respective units via a control and data bus and is responsible for overall control of the calibration control device 9.

The imaging unit 1 is, for example, an infrared imaging unit, and in one embodiment, the infrared imaging unit includes an optical component, a lens driving component, a shutter mechanism, an infrared detector, a signal preprocessing circuit, and the like, which are not shown. The optical component is composed of an infrared optical lens for focusing the received infrared radiation to the infrared detector. The lens driving section drives the lens to perform focusing or zooming operation according to a control signal of the control section 8.

In one example, the shutter mechanism is located between the infrared detector and the lens, but may also be disposed in the optical path of the lens, such as between the lenses or in front of the lens; the baffle can be a hinge type baffle (as shown in fig. 6), a simple pendulum type baffle (as shown in fig. 7) or the like, and is driven by a baffle motor to open and close, and a metal sheet with a black body material attached to the surface can be used as a general baffle material; in the non-starting state, the baffle does not shield the detector, and when the baffle is started, the infrared detector or the light path thereof is shielded.

An infrared detector, such as a refrigeration or non-refrigeration type infrared focal plane detector, converts infrared radiation passing through the optical components into electrical signals. The signal preprocessing circuit comprises a sampling circuit, an AD conversion circuit and the like, and performs signal processing such as sampling, automatic gain control and the like on signals read out from the infrared detector at a specified period, and the signals are converted into digital thermal image data through the AD conversion circuit. The processing unit 2 is configured to perform predetermined processing on thermal image data obtained by the infrared imaging unit 1, for example, binary data of 14 or 16 bits (also referred to as thermal image AD value data, referred to as AD value data for short).

The processing section 2 performs processing such as correction, interpolation, pseudo color, compression, decompression, and the like, and converts the data into data suitable for display, recording, and the like. In one embodiment, the corresponding range of a pseudo color plate is determined according to the range of the AD value of the thermal image data or the set range of the AD value, and the specific color value corresponding to the AD value of the thermal image data in the range of the pseudo color plate is used as the image data of the corresponding pixel position in the thermal infrared image. The processing unit 2 may be implemented by a DSP, another microprocessor, a programmable FPGA, or the like, or may be integrated with or the same as the control unit 8. The processing unit 2 is configured to record thermal image data and the like obtained by the imaging unit 1 in a recording medium such as a memory card according to a predetermined process based on the control of the control unit 8. In various types of imaging devices, the processing unit 2 converts thermal image data and the like obtained by the imaging unit 1 into data suitable for display, recording, communication, and the like. The processing portion 2 may be used as an example of performing correction processing on the acquired thermal image data.

The flash memory 3 stores therein a program for control and various data used in control of each portion. In embodiment 1, as an example of the storage medium, it is used for storing the correspondence of the temperature sensing data, the base image information, and 2; the storage medium may be, for example, a storage medium in the correction control device 9, such as a nonvolatile storage medium like the flash memory 3, the memory card, or the like, a volatile storage medium like the temporary storage section 5, or the like; other storage media connected with the calibration control device 9 by wire or wirelessly, such as other storage devices through other devices communicating with the communication I/F6 by wire or wirelessly, or storage media in other photographing devices, computers, servers, and the like; the correction control device 9 may obtain the base image information stored, obtained, and processed in another device by a wired or wireless method, and store the base image information in the correction control device 9 or a nonvolatile storage medium connected thereto.

The table shown in fig. 3 represents a relationship table in which the temperature-sensitive data and the base image information correspond to each other; wherein different temperature sensing data correspond to different basic image information, for example, temperature sensing data 1 corresponds to basic image information 1; the temperature sensing data at least comprises data of 1 temperature sensor (temperature sensing for short), and can be a temperature value of the temperature sensing (such as 24 degrees) or a range of the temperature value (such as a range of 10% above or below 24 degrees); in other examples, the temperature sensing data may also include a plurality of values of temperature sensing data, and the temperature sensing may be 1 or more, such as the temperature sensing inside the probe, the temperature sensing of the external environment, the temperature sensing of the processor (e.g., the chip temperature of the processing unit 2 or the control unit 8), the temperature sensing of the probe, the temperature sensing of the barrier, the temperature sensing of the lens, the temperature sensing of the heat sink, or a combination of one or more of them; preferably, temperature-sensitive data acquired by correcting a plurality of temperatures provided in the control device 9 itself is used.

Based on the acquisition indication of the basic image information, when the infrared detector is shielded by the barrier, the obtained thermal image data, or the thermal image data after the thermal image data is subjected to various algorithm processes, or specified parameters related to correction obtained based on the thermal image data (referred to as correction parameters, which may include various correction coefficients, compensation parameters, control parameters, and the like related to correction, and in different embodiments, the correction parameters may include 1 or more parameters), at least one of which is used as the basic image information.

The basic image information is used for performing correction control on control parameters of the detector, or performing correction control on at least one of various relevant parameters of the collected thermal image, or performing correction control on at least one of subsequent acquired thermal image data processing (such as uniformity correction, temperature measurement correction and the like).

The table shown in fig. 4 represents a relationship table in which sensor data and base image information of various relevant influence factors correspond to each other, and represents a more detailed correspondence relationship. Other sensors such as humidity, inclination sensors, air pressure, wind speed, etc. Further, in one example, the influence factors representing a certain state, such as the power-on time, various setting parameters of the detector or thermal image (e.g., a set frame rate, collected pixels), various compensation coefficients or algorithms of the target background (e.g., on and off of sky background compensation), various set correction algorithms (e.g., filtering, enhancing, etc.) and various analysis processing algorithms (e.g., different temperature ranges), etc., may be used as the state influence factors related to the basic image information and also as the items in the correspondence table; so as to obtain more proper basic image information according to the image factors, accelerate the speed of subsequent processing and control the processing effect. When the amount of the stored correction parameter data is large, the correction parameter may be stored in a processing device such as a cloud server, and only the identity information of the base image information, such as a number or an index, may be stored in the correspondence relationship between the influencing factor and the base image information stored in the correction control device.

A flap control section 4 for controlling the operation of the flaps, for example, a drive control processor of a flap motor; the baffle can be positioned at the front part of the infrared detector; controlling a baffle motor to drive a baffle to shield the infrared detector or a light path thereof based on the indication of the baffle starting; in another example, a separate flap control unit 4 may be eliminated, and the control unit 8 may be used as an example of the flap control unit 4.

The temporary storage unit 5 is a volatile memory such as a RAM or a DRAM, and serves as a buffer memory for temporarily storing image data and thermal image data output from the imaging unit 1, and also serves as a working memory for the processing unit 2 and the control unit 8, and temporarily stores data processed by the processing unit 2 and the control unit 8. In addition, the memory, the register, or the like included in the processor such as the control unit 8 or the processing unit 2 may be interpreted as a type of temporary storage unit.

The communication I/F6 (an example of a communication unit) is an interface for connecting and exchanging data with an external device according to, for example, USB, 1394, bluetooth, a network such as WIFI, a communication network such as 4G, 5G, or other wired or wireless communication specifications, and examples of the external device include a personal computer, a server, a cloud server, a PDA (personal digital assistant), another thermal imaging device, a visible light camera, a storage device, and the like.

The memory card I/F7 is connected to the memory card I/F7 as an interface of the memory card, is detachably mounted in a card slot of the calibration control device 9 main body, and records data such as thermal image data under the control of the control unit 8, and is a rewritable nonvolatile memory.

Further, a display unit may be provided, and the image data for display stored in the temporary storage unit 5 may be displayed on the display unit under the control of the control unit 8. For example, images generated by capturing thermal image data obtained by shooting may be continuously displayed, images read and expanded from a memory card may be displayed, and various setting information may be displayed. Not limited to this, the display portion may be another display device connected to the correction control device 9, and the display device may not be included in the electrical configuration of the correction control device 9 itself.

Further, an operation portion may be provided: the control unit 8 executes a program in response to an operation signal from the operation unit. The operation unit may be a key, a touch panel, a voice recognition unit, or the like.

The control unit 8 controls the overall operation of the calibration control device 9, and the control unit 8 is realized by, for example, a CPU, an MPU, an SOC, a programmable FPGA, or the like. The flash memory 3 stores therein a program for control and various data used in control of each portion.

The control section 8 may function as a correction instructing section for issuing a correction instruction; the indication of correction may be issued, for example, based on timing, operator instructions, trigger for a change in sensor data, and the like.

The control unit 8 may function as a correction control unit that performs control of correction processing based on the base image information; the correction control unit may determine the base image information, and in one example, may determine the base image information based on the sensor data obtained by the sensor device based on a correspondence between the sensor data and the base image information, using the base image information corresponding to the sensor data; performing control of correction processing; specifically, in an example, the control part 8 may control the processing part 2 to perform correction processing on thermal image data obtained by subsequent shooting according to the determined basic image information; in another example, the control unit 8 may control the control parameter of the probe to perform the correction process. The control unit 8 may perform the correction process, for example, by using a processing device in which the control unit 8 and the processing unit 2 are integrated. Preferably, the sensor data is obtained based on the calibration control device itself or a sensor connected thereto. The sensor data includes at least 1 temperature sensing data. The correction processing may be performed on thermal image data obtained by shooting or on detector control parameters.

Preferably, the correction control unit adopts the corresponding base image information if the correction instruction specifies that the temperature-sensitive data obtained by the temperature-sensitive device at the predetermined timing matches the correspondence between the temperature-sensitive data and the base image information in the storage medium; if the corresponding basic image information is not found, the control part 8 can send out the indication of starting the gear;

the flap control section 4 or the control section 8 serves as a flap control section for controlling the operation of the flaps; the baffle can be positioned at the front part of the infrared detector; controlling a baffle motor to drive a baffle to shield the infrared detector based on the indication of the baffle starting;

the control section 8 functions as a base image information recording section for recording base image information based on a recording instruction. When the basic image information is thermal image data obtained when a baffle plate shields an infrared detector or correction parameters obtained based on the thermal image data; the basic image information is recorded in a way of being associated with temperature sensing data obtained by at least one temperature sensing device positioned in the correction control device; the basic image information recording part is used for recording the corresponding relation between the temperature sensing data obtained by the temperature sensing device and the basic image information; so as to facilitate subsequent adoption.

Preferably, the correction indication, the filing indication, and the recording indication may be configured to be linked, so that the thermal image device 9 automatically records the corresponding relationship between the basic image information obtained by filing and the sensor data such as the temperature sensing according to different application environments when a user starts to use the thermal image device, and is convenient for calling the corresponding basic image information according to the sensor data.

The correction control method will be explained below, and the present embodiment will be explained with reference to fig. 5, and the control steps are as follows:

a step a01 of performing correction processing based on the correction instruction based on the base image information corresponding to the sensor data;

a shooting part of the correction control device 9 is used for shooting to obtain thermal image data; a correction control unit for controlling the correction process based on the base image information when the correction instruction is received;

specifically, for example, when receiving a correction instruction, the correction control unit controls the correction process based on the sensor data obtained by the sensor device at a predetermined timing of the correction instruction based on the correspondence between the sensor data and the base image information in the storage medium, using the base image information corresponding to the sensor data; the sensor data is obtained based on the correction control device itself or a sensor connected with the correction control device; the sensor data includes at least 1 temperature sensing data.

In an embodiment, step a01 may constitute a complete solution, and subsequent steps may be omitted.

If the currently obtained sensor information, such as temperature sensing data, does not find corresponding basic image information, step a02 may be entered;

step A02; enabling the barrier based on the indication that the barrier control is enabled;

if the corresponding basic image information is not found, the control part 8 sends out an indication that the baffle is started, and the baffle motor drives the baffle to shield the infrared detector. A baffle control part for controlling the action of the baffle; the baffle is positioned at the front part of the infrared detector; controlling the baffle to shield the infrared detector based on the indication of the baffle starting;

if a standard reference object such as an external shelter is used as a standard reference body, and if a lens cover is manually closed to be used as a baffle, the step A02 can be removed; if the standard reference object is replaced by an instruction acquired based on basic image information, acquiring thermal image data obtained by shooting the standard reference object or correction parameters obtained after processing based on the instruction as the basic image information;

step A03; based on the recording instruction of the basic image information, the data obtained by the sensor such as temperature sensing data is stored in association with the basic image information;

the basic image information recording part is used for recording basic image information based on a recording instruction, and the basic image information is thermal image data or related correction parameters obtained when the infrared detector is shielded by the baffle; the basic image information is recorded in a way of being associated with temperature sensing data obtained by at least one temperature sensing device positioned in the correction control device; thus, the relationship between the temperature-sensitive data obtained by the temperature-sensitive device and the base image information can be obtained. In other preferred examples, the relationship of data obtained by various sensors to underlying image information may be obtained.

In other preferred examples, such as a thermal image device using multi-file technology, data obtained by various sensors and basic image information obtained when multiple files are respectively shielded can be stored in an associated manner; in order to obtain more refined basic image information; further, for example, when a double barrier is used, for example, an outer barrier such as a lens cover, and an inner barrier such as a simple pendulum barrier between the lens and the detector, 1 barrier of base image information may be used to correct the base image information obtained by the other barrier.

In addition, according to the same parameters of the sensors and the like, the basic image obtained by table lookup and the basic image obtained by filing can be compared in a regular or manual indicating mode, if the difference is 2, the former can be replaced by the latter, or a remote upgrading measure can be further adopted to increase correction parameters, so that the aim of timely correcting the thermal image device is fulfilled.

As described above, by obtaining data of the relevant sensor and the like, the basic image information corresponding to the sensor data in fig. 3 or fig. 4 is searched, and if the data is matched, the document printing is not required, so that the defects of image interruption, document fault and the like caused by document printing are overcome. Further, if the matching is not found, a file can be printed and basic image information can be obtained for correction processing, and further preferably, the data of the sensor and the basic image information can be stored in an associated mode, so that the corresponding relation is enriched, and subsequent adoption is facilitated. The method has the advantages that before the instrument is delivered to a user, the preparation workload of the basic image information in the production link can be greatly reduced, and the corresponding basic image information can be automatically acquired and conveniently selected subsequently according to the change of the environmental temperature and different use environments.

Therefore, even if the thermal image device is assembled and applied to different complex environments, for example, the thermal image device is assembled and corrected when being carried in different modes; by the mode, the aim of automatic correction can be achieved by gradually reducing the gear-making frequency even without making a gear-making sheet, and the corresponding relation between the basic image information and the corresponding sensor data is more convenient to obtain.

Example 2

In this embodiment, the control system includes:

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

part or all of the influencing factors, part or all of the basic image information, and the corresponding relation between part or all of the influencing factors and the basic image information, wherein one or more or all of the influencing factors are derived from the processing device or the correction control device;

One or a part or all of the influence factors, the basic image information, and the corresponding relations between the influence factors and the basic image information are derived from the processing device, or one or a part or all of the influence factors, the basic image information, and the corresponding relations between the influence factors and the basic image information are derived from the correction control device;

preferably, during the operation of the correction control device, one or a part or all of the influencing factors, part or all of the basic image information, and the corresponding relationship between part or all of the influencing factors and the basic image information may be derived from the processing device;

preferably, the basic image information for the correction processing includes the following two cases, and one of them is executed at a time:

case 2, comprising at least one of:

In one example, when the data of the influence factor is acquired based on the correspondence between the influence factor and the base image information, the base image information may be determined based on the correspondence; the base image information serves as base image information for correction processing;

in one example, when the corresponding basic image information cannot be found according to the obtained influence factors, the basic image information can be obtained again; the indication for acquiring the basic image information can be generated based on the processing device and/or the correction control device, and the shooting part is used for shooting thermal image data obtained based on the shielding of the detector or based on a standard reference body;

preferably, the correction control device and/or the processing device obtains the basic image information and the corresponding influence factors; and adding the corresponding relation to the corresponding relation between the influence factors and the basic image information.

Preferably, the image processing apparatus further includes a correspondence relation generation unit configured to extract the plurality of influence factors and the corresponding base image information according to a specific rule or algorithm to form the correspondence relation.

The basic image information used for the correction processing is the basic image information determined according to the corresponding relationship based on the corresponding relationship between the influence factor and the basic image information, according to the acquired data of the influence factor. The base image information may be determined by one or a combination of the correction control means or the processing means.

As shown in fig. 12, the processing device 10 may be a computer, a server, a cloud server, other devices such as a thermal imaging device, and the like as an example of the processing device, and there may be 1 or more processing devices; the processing device 10 communicates with the thermal imaging device 11 through a communication part and performs data interaction; the thermal imaging device 11 is an example of a correction control device;

in one example, the influence factors are obtained by the thermal image device 11, the corresponding relationship between the influence factors and the basic image information is stored in the thermal image device 11, and the thermal image device 11 can independently determine the basic image information; the processing device 10 may be used to view images and the like;

in one example, the influence factors are obtained by the thermal image device 11, the corresponding relationship between the influence factors and the identity information of the basic image information is stored in the thermal image device 11, and the basic image information is stored in the processing device 10, so that the thermal image device 11 can determine the identity information of the basic image information through the influence factors and the corresponding relationship, and obtain the basic image information from the processing device 10;

in one example, the influencing factors are derived from the processing device 10, the corresponding relations are stored in the processing device 10, and the determined basic image information is provided to the thermal imaging device 11;

in one example, the thermal image device 11 obtains thermal image data captured during the period of shielding the detector, and provides the thermal image data to the processing device 10 through the communication part, and the processing device 10 processes the thermal image data into correction parameters and provides the correction parameters to the thermal image device 11 for correction processing.

In one example, the thermal image device 11 obtains data of the image factors, and provides the data to the processing device 10 (such as a cloud server) through the communication part, the corresponding relationship is stored in the processing device 10, and the processing device 10 provides corresponding basic image information to the thermal image device 11 according to the obtained data of the influencing factors.

In one example, the thermal image device 11 is configured in an environment where the thermal image device is used on site, and the influence factors obtained by the thermal image device 11 or a sensor connected to the thermal image device may be provided to the processing device 10 through the communication unit, and processed, for example, the processing device 10 queries the corresponding relationship between the influence factors and the basic image information, and provides the corresponding basic image information to the thermal image device 11; the thermal imaging device 11 may provide the obtained influence factors to the processing device 10 based on a condition trigger, for example, when the influence factors are detected to exceed a specified range, or come at a fixed time, or indicate a control;

in one example, the influencing factors are derived in part from the processing device 10 and in part from the thermal imaging device 11 itself;

the correction control means may determine the base image information based on the information supplied from the processing means, and control the correction processing.

In one example, part of the corresponding relationship is derived from the processing device 10, and part is located in the storage medium of the thermal imaging device 11;

in one example, the processing device 10 is configured to provide the influencing factors to the thermal imaging device 11; and the thermal image device 11 determines the basic image information according to the corresponding relationship between the influence factors stored in the thermal image device and the basic image information and the information provided by the processing device 10, and controls the correction processing.

In one example, the thermal image device 11 receives the regularly updated corresponding relationship provided by the processing device 10 through the communication part;

the basic image information, the influencing factor, the obtaining mode of the influencing factor, and the corresponding relationship between the influencing factor and the basic image information are not repeated as described above.

As described above, by providing part or all of the influencing factors, the correspondence relationship between part or all of the influencing factors and the base image information, and part or all of the base image information by the processing device 10, it is possible to significantly improve the reliability and flexibility of the correction control device, reduce the technical requirements of the correction control device, and reduce the cost, and to provide a degree of fineness of the correspondence relationship between the influencing factors and the base image information without increasing the burden on the storage medium of the correction control device, thereby also significantly improving the accuracy of measurement. Through data interaction of the communication part, the corresponding relation between the influence factors and the basic image information can be updated, if the use environment is changed, the influence factors are changed more, the basic image information is updated timely or regularly, and particularly when the processing device 10 is in communication connection with a large number of thermal image devices, rich corresponding relation can be constructed according to a large amount of summarized data; the corresponding relations can be configured into multiple groups of corresponding relations according to different application influence factors, and when the influence environment is greatly changed, the type of the influence factors is changed, so that the corresponding relations of related groups can be called in time; the intellectualization and the reliability of the system can be greatly improved.

Example 3

In this embodiment, a method of obtaining a correspondence between an influence factor and a base image is described;

a correction system, comprising:

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

a processing device comprising

In another aspect, a calibration control apparatus includes:

the acquisition part is used for acquiring thermal image data;

an influence factor acquiring unit for acquiring data of influence factors;

and the basic image information recording part is used for recording the basic image information obtained based on the shooting of the occlusion detector (such as the starting period of the mask) or the shooting of the standard reference body and the data of the corresponding image factors in an associated mode. Or further comprises an extraction part for extracting a plurality of influence factors and corresponding basic image information according to a specific rule or algorithm to form a corresponding relation.

The correction control method includes:

acquiring thermal image data and influencing factors;

As shown in fig. 12, the processing device 10 and the thermal imaging device 11 form a correction system, in another example, the processing device 10 is taken as an example of a correction control device, which may be a computer, a server, or other processing devices, in one example, and the processing device 10 obtains thermal image data captured by the thermal imaging device and obtains an image factor through the communication part; in another example, the calibration control device 10 may be a thermal imaging device with a camera;

in one example, the processing device 10 is configured in an environment simulating field use, and may obtain the thermal image device 11 or other sensors connected to the thermal image device 11 or the processing device 10 through the communication portion, and may obtain thermal image data and/or correction parameters captured when a barrier of the thermal image device 11 is activated or based on a correction reference object; preferably, an acquisition instruction of the basic image information, such as a filing instruction, may be issued to perform activation control or to maintain the barrier of the thermal image device 11 in an always-on state; preferably, the conditioning environmental conditions can be varied to obtain a variety of influencing factors; preferably, the processing device 10 may obtain the thermal image data obtained by the communication part according to an algorithm to obtain a correction parameter;

in one example, the processing device 10 records the obtained influencing factors and the corresponding basic image information; one of the following ways may be used:

1) continuously recording image factors and thermal image data and/or correction parameters shot during the starting period of the baffle according to the specified frequency;

2) continuously recording image factors and corresponding thermal image data and/or correction parameters according to a specified frequency;

3) recording the image factors and thermal image data and/or correction parameters corresponding to the image factors according to a trigger instruction generated under a specified condition;

the triggering indication includes one or more of timing, detecting the change of the influencing factor exceeding a specified range (for example, the temperature of 0.5 degrees is the specified range), obtaining thermal image data and/or the change of the correction parameter exceeding the specified range, manually triggering, reaching a set value and the like.

And a correspondence relation generating unit configured to extract a plurality of influence factors and corresponding base image information according to a specific rule or algorithm based on the recorded data to form a correspondence relation. There may be some or all of them extracted.

In one example, the base image information exceeding the predetermined difference range and the corresponding influence factor are extracted, and the relationship between the influence factor and the base image information is constructed.

In one example, the method is used for extracting the basic image information exceeding the specified difference range and the corresponding influence factor according to the continuously recorded influence factors and the data of the basic image information correspondingly obtained, and constructing the relationship between the influence factor and the basic image information.

In one example, according to a plurality of set values of the influence factors, extracting corresponding basic image information to form a corresponding relation;

in one example, according to the fact that basic image information exceeds a specified difference range, extracting data of the basic image information and corresponding influence factors to form a corresponding relation;

when a correction system is employed, comprising: when at least 1 correction control device and at least 1 processing device communicated with the correction control device are used, part or all of the influencing factors can be completed by the correction control device and/or the processing device; the recording of the image factors and the basic image information and the extraction of the corresponding relation can also be completed by the correction control device and/or the processing device.

As described above, with the method described in this embodiment, the corresponding relationship between the influencing factor and the basic image information can be constructed before shipment or during operation. Facilitating subsequent calls.

One or more of the advantages brought by the above embodiments of the present invention are summarized as follows:

1) corresponding basic image information is found through various influencing factors such as sensor data, and image interruption can be reduced or avoided when correction processing is carried out;

2) the correction frequency can be improved, and a foundation is provided for improving the temperature precision and reducing the temperature drift;

3) the times and frequency of mechanical movement of the baffle can be reduced, and the reliability of the whole machine is improved; the temperature influence of the work of a baffle motor and the like is greatly reduced;

4) according to the change of the relevant influence factor data, corresponding basic image information is automatically called, and a feasible technical scheme is provided for greatly improving the temperature measurement precision and reducing the temperature measurement drift; moreover, when the fine sensor data and the corresponding basic image information are configured, the correction frequency can be correspondingly improved, and the temperature measurement precision can be greatly improved;

5) when the acquired data of the influencing factors do not find the corresponding basic image information, the data is filed and the corresponding basic image information is acquired, and the corresponding relation can be further increased; the difficulty of production and application is reduced substantially, and the method is equivalent to the automatic acquisition and learning function of basic image information; along with the extension of the running time, the precision of the thermal image device can be improved;

6) and at the set time, by re-acquiring the basic image information, for example, emptying or modifying the corresponding relation table between the sensor and the basic image information every 3 months, the drift caused by environmental change or self change of the thermal image device is reduced.

7) When the newly obtained influence factor data is exactly positioned between the two groups of influence factor data, the basic image information corresponding to the nearest one in the two groups of influence factor data can be adopted; or based on the basic image information respectively corresponding to the two groups of influence factor data, calculating the corresponding basic image information of the newly obtained influence factor data, and obtaining better effect;

8) different temperature gears correspond to different basic image information tables, so that the operation is simplified, and the gear shifting speed of different temperature gears can be greatly improved;

9) the external influence factors, the internal influence factors, the state influence factors and the corresponding basic image information are combined, and the image and the temperature measurement can be comprehensively and accurately corrected;

10) the corresponding relation between the image factors and the influence factors and the basic image information and the basic image can be obtained through the communication part, so that the thermal image device used on site can be remotely corrected at the server end, the thermal image device is suitable for the thermal image device with the baffle fault, and an alternative scheme is provided under the condition of inconvenient repair; the complexity of the thermal image device is reduced, and the reliability is improved;

of course, not all of the above advantages need to be achieved with each embodiment; the embodiment of the invention has remarkable effect.

The present invention is applicable not only to various portable calibration control devices for detection but also to robots, in-vehicle devices, and the like.

In addition, the processing and control functions of some or all of the components in embodiments of the present invention may also be implemented using dedicated circuits or general purpose processors or programmable FPGAs.

In addition, the embodiment is suitable for being widely applied to various industries of infrared detection.

Obviously, different combinations of the above working steps can be used to obtain more embodiments. Obviously, more embodiments are possible according to different combinations of the above-described modes of operation.

It is obvious that, when the correction control device of the present invention is a component of the correction control device 9 having a display control section, the display control section can be omitted, and the present invention is also configured.

In addition, the correction control device may also eliminate the processing unit, and also constitute the present invention;

in addition, the processing and control functions of some or all of the components in embodiments of the present invention may also be implemented using dedicated circuits or general purpose processors or programmable FPGAs. Although the functional blocks in the drawings may be implemented by hardware, software, or a combination thereof, there is generally no need for structures to implement the functional blocks in a one-to-one correspondence; for example, a functional block may be implemented by one software or hardware unit, or a functional block may be implemented by multiple software or hardware units.

The foregoing describes only embodiments of the invention and is presented by way of illustration rather than limitation, and further modifications and variations of the embodiments may be made by persons skilled in the art in light of the foregoing description without departing from the spirit or scope of the invention.

Claims

1. A correction system, comprising:

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

2. A correction system, comprising:

the correction control device includes:

the shooting part is used for shooting to obtain thermal image data;

a processing device comprising

3. The calibration system of claim 1, comprising

At least 1 calibration control device, and at least 1 processing device in communication with the calibration control device.

4. The calibration system of claim 1, comprising

case 2, comprising at least one of:

5. The calibration system of claim 1,

the correction control device and/or the processing device obtains basic image information and corresponding influence factors thereof; and adding the corresponding relation to the corresponding relation between the influence factors and the basic image information.

6. The calibration system of claim 2,

the correction control device or the processing device has a correspondence relationship generation unit that extracts a plurality of influence factors and corresponding base image information according to a specific rule or algorithm to form a correspondence relationship.

7. A correction device, comprising:

the shooting part is used for shooting to obtain thermal image data;

determining second basic image information according to the acquired data of the influence factors and the corresponding relation when the second basic image information is based on the corresponding relation between the influence factors and the basic image information; a correction control section for performing control of correction processing based on the second base image information; first and second base image information representing different base image information;

when correction processing is carried out according to the first basic image information, a processed first image and/or first analysis data are/is obtained; when correction processing is performed based on the second base image information, a processed second image and/or second analysis data is obtained.

8. Calibration system according to any one of claims 1-6 and calibration device according to claim 7,

the base image information may include one or more of thermal image data, correction parameters, and correction algorithms; the basic image information for the correction process may include one or more of thermal image data, correction parameters, correction algorithms;

the base image information includes one or a combination of the following cases:

2) manually configured base image information;

the thermal image data as the basic image information includes one of the following cases:

3) manually configured thermal image data;

the correction parameters comprise one or a combination of the following conditions:

3) the thermal image data participates in obtaining correction parameters;

4) manually configured correction parameters;

5) obtaining correction parameters according to an algorithm according to correction parameters corresponding to the influence factors in the specified range;

the influencing factor comprises one of the following factors:

the acquired data of the influencing factors can be in various situations, including one or the combination of the following situations:

the data of the acquired influencing factors or the data of the acquired influencing factors after being processed based on the data can be the specified time when the correction instruction is received, and the specified time comprises the specified time before, during or after the correction instruction or a certain time period; the correction instruction can be sent out according to a certain frequency, triggering according to a triggering condition, manual triggering and the like; the frequency may be configured to be one of less than or equal to 1 minute, 30 seconds, 20 seconds, 10 seconds, 5 seconds;

sources of influence data include one or a combination of the following:

1) acquired by a sensor;

4) data of the influencing factors acquired through the communication part;

5) data of manually set influencing factors;

the corresponding relationship between the influencing factors and the basic image information may include one or more of the following conditions:

2) pre-stored in a storage medium of the correction control device;

4) the corresponding relation obtained through the communication part;

7) updated according to certain conditions;

8) obtained by the calibration control device itself;

Determining basic image information based on the corresponding relation between the influence factors and the basic image information; the basic image information may be determined based on the correspondence stored in the correction control apparatus itself, or the correspondence obtained by the communication section, or the correspondence stored in another apparatus connected to the communication section;

including one or more of the following:

1) directly corresponding;

2) selected within an allowed specified range;

3) obtained by calculation;

4) and obtaining the basic image information corresponding to the multiple groups of influence factors in the specified range through algorithm calculation.

9. Calibration system according to any one of claims 1-6 and calibration device according to claim 7,

when the corresponding basic image information cannot be found according to the obtained influence factors, the basic image information can be obtained again; the indication to acquire the base image information may be generated based on the processing means and/or the correction control means;

including one or more of the following

1) Generating an acquisition instruction of basic image information, and acquiring the basic image information according to thermal image data acquired by photographing a light path of a shielding detector; the gear-shifting indication can come from a processing device or a correction control device;

2) generating an acquisition instruction of basic image information, and acquiring the basic image information according to thermal image data acquired by photographing a light path of a shielding detector; and associating and recording the basic image information and the corresponding influence factors to form a corresponding relation between the basic image information and the corresponding influence factors.

the thermal image data is one or a combination of the above conditions;

Wherein, the influencing factor comprises one of the following factors:

the obtained influence factors and the corresponding basic image information thereof comprise one or a combination of the following conditions:

10. The correction method comprises the following steps:

the correction control means executes steps including:

part or all of the influence factors, part or all of the basic image information, and the corresponding relation between the part or all of the influence factors and the basic image information, wherein one or part of the influence factors and the basic image information are derived from the communication step of the processing device and the correction control device;

11. The correction method comprises the following steps:

the system is applied to a correction system, and comprises at least 1 correction control device and a processing device communicated with the correction control device;

the correction control device includes:

a shooting step, wherein the shooting step is used for shooting to obtain thermal image data;

the processing device executes the steps including

And a basic image information recording step, which is used for recording the basic image information obtained by shooting based on the shielding detector or shooting based on the standard reference body and the data of the corresponding image factors in an associated mode.