CN109697714A - A kind of information detecting method, equipment and computer storage medium - Google Patents
A kind of information detecting method, equipment and computer storage medium Download PDFInfo
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- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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Abstract
The embodiment of the invention discloses a kind of information detecting methods, which comprises obtains the surface parameter information of object to be measured；Surface parameter information includes the parameter information of the characteristic point of subject surface to be measured；Parameter information based on characteristic point obtains pixel value corresponding with the parameter information of characteristic point, and generates the first image based on pixel value；Object in first image is identified to obtain recognition result, and determines the surface defect information of object to be measured based on recognition result.The embodiment of the present invention also discloses a kind of information detecting apparatus and computer storage medium simultaneously.
Description
Technical field
The present invention relates to electron and information technology fields, more particularly, to a kind of information detecting method, equipment and computer
Storage medium.
Background technique
Product needs to detect product after the completion of production, and whether the surface to determine product is defective.Related skill
In art, defects detection is carried out to the surface of product using the method or flux-leakage detection method of camera shooting two dimensional image.However,
When shooting using camera to progress product, the influence of greasy dirt on illumination and product will receive, the figure for obtaining shooting
Surface defect information as not can accurately reflect product；And flux-leakage detection method is only applicable to examine ferromagnetic material product
It surveys, and is easy the region missing inspection big to surface defect range.Therefore, in the related technology, information detecting apparatus cannot be detected accurately
The surface defect information of product.
Summary of the invention
In order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of information detecting method, equipment and computers
Storage medium, solve the problems, such as information detecting apparatus in the related technology cannot accurate testing product surface defect information.
The technical scheme of the present invention is realized as follows:
A kind of information detecting method is applied to information detecting apparatus, which comprises
Obtain the surface parameter information of object to be measured；The surface parameter information includes the feature of the subject surface to be measured
The parameter information of point；
Based on the parameter information of the characteristic point, pixel value corresponding with the parameter information of the characteristic point, and base are obtained
The first image is generated in the pixel value；
Object in the first image is identified to obtain recognition result, and based on described in recognition result determination
The surface defect information of object to be measured.
Optionally, the surface parameter information for obtaining object to be measured, comprising:
Obtain the depth information of the characteristic point of the subject surface to be measured；
Correspondingly, the parameter information based on the characteristic point obtains corresponding with the parameter information of the characteristic point
Pixel value, and the first image is generated based on the pixel value, comprising:
Based on the depth information of the characteristic point, pixel value corresponding with the depth information of the characteristic point is obtained；
The pixel value is mapped on pixel corresponding with the characteristic point, and generates first based on the pixel
Image.
Optionally, the depth information of the characteristic point for obtaining the subject surface to be measured, comprising:
When the object to be measured relative to the information detecting apparatus when multiple preset directions are mobile, in each preset direction
The range information of the upper characteristic point for obtaining the information detecting apparatus and the subject surface to be measured；
The depth information of the characteristic point of the subject surface to be measured is determined based on the range information.
Optionally, it is described when the object to be measured relative to the information detecting apparatus when multiple preset directions are mobile,
The range information of the characteristic point of the information detecting apparatus and the subject surface to be measured is obtained on each preset direction, comprising:
Obtain the movement speed when the object to be measured relative to the information detecting apparatus when multiple preset directions are mobile；
Based on the movement speed, collection period is determined；
According to the sampling period, the information detecting apparatus and the Object table to be measured are obtained on each preset direction
The range information of the characteristic point in face.
Optionally, described to be based on the movement speed, determine collection period, comprising:
Obtain the detection accuracy of the information detecting apparatus；
Based on the movement speed and the detection accuracy, the collection period is determined.
Optionally, the parameter information based on the characteristic point obtains corresponding with the parameter information of the characteristic point
Pixel value, and the first image is generated based on the pixel value, comprising:
Parameter information and presetted pixel value range based on the characteristic point, determine parameter information and the institute of the characteristic point
State the transformational relation between pixel value；
Parameter information and the transformational relation based on the characteristic point obtain corresponding with the parameter information of the characteristic point
Pixel value；
The pixel value is mapped on pixel corresponding with the characteristic point, and generates first based on the pixel
Image.
Optionally, the parameter information and presetted pixel value range based on the characteristic point, determines the characteristic point
Transformational relation between parameter information and the pixel value, comprising:
It determines the maximum parameter information and minimum parameter information in the parameter information of the characteristic point, and determines described default
Max pixel value and minimum pixel value in pixel value range；
The difference that the max pixel value subtracts the minimum pixel value is calculated, pixel value difference is obtained；
The difference that the maximum parameter information subtracts the minimum parameter information is calculated, parameter difference is obtained；
The pixel value difference is calculated divided by the quotient of the parameter difference, obtains the first conversion parameter；
The product for calculating first conversion parameter Yu the minimum parameter information, obtains the second conversion parameter；
Based on first conversion parameter and second conversion parameter, establish the parameter information of the characteristic point with it is described
Transformational relation between pixel value.
Optionally, the object in the first image is identified to obtain recognition result, and is based on the identification
As a result the surface defect information of the object to be measured is determined, comprising:
Denoising is filtered to the first image, obtains the second image；
The object in second image is identified based on Image Edge-Detection method to obtain recognition result, and is based on institute
State the surface defect information that recognition result determines the object to be measured.
A kind of information detecting apparatus, the equipment include: processor, memory and communication bus；
The communication bus is for realizing the communication connection between processor and memory；
The processor is used to execute the program of the information detecting method in memory, to perform the steps of
Obtain the surface parameter information of object to be measured；The surface parameter information includes the feature of the subject surface to be measured
The parameter information of point；
Based on the parameter information of the characteristic point, pixel value corresponding with the parameter information of the characteristic point, and base are obtained
The first image is generated in the pixel value；
Object in the first image is identified to obtain recognition result, and based on described in recognition result determination
The surface defect information of object to be measured.
A kind of computer storage medium, the computer storage medium are stored with one or more program, and one or more
A program can be executed by one or more processor, the step of to realize above-mentioned information detecting method.
Information detecting method, equipment provided by the embodiment of the present invention and computer storage medium are available to be measured right
As the parameter information of the characteristic point on surface；Parameter information based on characteristic point obtains picture corresponding with the parameter information of characteristic point
Element value, and the first image is generated based on pixel value；Object in first image is identified to obtain recognition result, and based on knowledge
Other result determines the surface defect information of object to be measured, in this way, information detecting apparatus can be by obtaining subject surface to be measured
The parameter information of characteristic point determines the surface defect information of object to be measured, due to obtaining the characteristic point of subject surface to be measured
During parameter information, the Magnetic Field that object to be measured is shot or detected to the entirety of object to be measured is not needed, because
This not will receive the influence of illumination or subject surface to be measured greasy dirt, be also not limited to the material of object to be measured, to solve correlation
In technology information detecting apparatus cannot accurate testing product surface defect information the problem of, therefore, in the embodiment of the present invention
Information detecting method can accurately detect the surface defect information of object to be measured.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of information detecting method provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of another information detecting method provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of another information detecting method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of information detecting apparatus provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
It should be understood that " embodiment of the present invention " or " previous embodiment " that specification is mentioned in the whole text means have with embodiment
The a particular feature, structure, or characteristic of pass is included at least one embodiment of the present invention.Therefore, go out everywhere in the whole instruction
Existing " in the embodiment of the present invention " or " in the aforementioned embodiment " not necessarily refers to identical embodiment.In addition, these are specific
Feature, structure or characteristic can be combined in any suitable manner and be answered in one or more embodiments.In various realities of the invention
It applies in example, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence Ying Yiqi of each process
Function and internal logic determine that the implementation process of the embodiments of the invention shall not be constituted with any limitation.Aforementioned present invention is implemented
Example serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
The embodiment of the present invention provides a kind of information detecting method, is applied to information detecting apparatus, as shown in Figure 1, this method
The following steps are included:
Step 101: obtaining the surface parameter information of object to be measured.
Wherein, surface parameter information includes the parameter information of the characteristic point of subject surface to be measured.
Object to be measured can be any object for needing to obtain surface defect information；Object to be measured in the embodiment of the present invention
Shape may include any one of shapes such as spherical, column, plate, strip and cone cell or at least two group
It closes, the shape of object to be measured can also be Else Rule or irregular shape.In addition, the material of object to be measured may include
The combination of one or more of the materials such as metal, glass, plastics and rubber, shape of the embodiment of the present invention to object to be measured
Shape and material are not construed as limiting.
In embodiments of the present invention, surface parameter information may include: case depth information, surface roughness information, table
Face tension information, surface stress information, surface reflectivity information, surface temperature parameter, surface brightness parameter and sheet resistance
At least one of information such as rate information.For example, in one embodiment, surface parameter information can be case depth information.When
When surface parameter information is case depth information, the specific implementation for obtaining the surface parameter information of object to be measured can be with are as follows:
Obtain the case depth information of object to be measured.Further, the specific implementation of surface parameter information of object to be measured is obtained also
It can be with are as follows: the depth information for obtaining the characteristic point of subject surface to be measured, the depth information of the characteristic point based on subject surface to be measured
Determine the surface parameter information of object to be measured.In other embodiments, can also obtain object to be measured it is above-mentioned enumerate it is other
Parameter information, it is the description in case depth information that specific implementation, which is referred to surface parameter information, and details are not described herein again.
When surface parameter information is case depth information, can by obtain information detecting apparatus and object to be measured away from
From come the depth information that obtains the characteristic point of subject surface to be measured.In one embodiment, electronic equipment can be equipped with Distance-sensing
Device, information detecting apparatus obtain information detecting apparatus at a distance from object to be measured by range sensor.Wherein, range sensor
It can be optical distance sensor, infrared distance sensor or the equidistant sensor of ultrasonic distance sensor, not make herein
It limits.In another embodiment, electronic equipment can be equipped with camera, and information detecting apparatus is believed by the image that camera obtains
Breath is to obtain information detecting apparatus at a distance from object to be measured.Wherein it is possible to obtain infomation detection only with a camera
Equipment at a distance from object to be measured, can also be obtained using at least two cameras information detecting apparatus and object to be measured away from
From.In other embodiments, when surface parameter information is the above-mentioned other information enumerated, information detecting apparatus can pass through it
Its mode obtains the parameter information of the characteristic point of subject surface to be measured, for example, information detecting apparatus can be sensed by roughness
Device obtains the Roughness Information of the characteristic point of subject surface to be measured, and the characteristic point of subject surface to be measured is obtained by tension sensor
Tension information, by strain gauge obtain subject surface to be measured characteristic point stress information, pass through reflectivity sensor
The reflectivity information for obtaining the characteristic point of subject surface to be measured obtains the characteristic point of subject surface to be measured by temperature sensor
Temperature information obtains the luminance information of the characteristic point of subject surface to be measured by luminance sensor or passes through resistivity sensor
Obtain the resistivity information etc. of the characteristic point of subject surface to be measured.
The number of the characteristic point of the per surface of object to be measured can be chosen according to the actual demand of user.Ying Li
Solution, the number of the characteristic point of per surface is more, and the surface parameter information of the object to be measured of acquisition is more accurate, so that it is determined that
The surface defect information for surveying object is more accurate.
Step 102: the parameter information based on characteristic point obtains pixel value corresponding with the parameter information of characteristic point, and base
The first image is generated in pixel value.
In one embodiment, pixel value is grey scale pixel value, and the value range of grey scale pixel value is 0-255, pixel grey scale
Value can be the parameter information based on characteristic point and be calculated.In another embodiment, pixel value can for pixel depth value or
Person's pixel color value etc., is not construed as limiting herein.In other embodiments, pixel value can also be grey scale pixel value, pixel depth
At least combination of the two in value and pixel color value.For example, in one embodiment, step 102 can be with are as follows: is based on feature
The parameter information of point obtains grey scale pixel value corresponding with the parameter information of characteristic point and pixel depth value, and based on pixel ash
Angle value and pixel depth value generate the first image, in this way, will be provided with grey scale pixel value and pixel depth in the first image generated
It is worth the two parameter informations.It should be noted that the grey scale pixel value in the embodiment of the present invention is not the practical ash of subject surface to be measured
Angle value, i.e. grey scale pixel value are not that characterization is to be measured to probable luminance information, but according to the feature of subject surface to be measured
The grey scale pixel value corresponding with the parameter information of characteristic point that the parameter information of point is got.
Step 103: the object in the first image being identified to obtain recognition result, and is determined based on recognition result to be measured
The surface defect information of object.
Object in first image is identified to obtain recognition result to may include: the method using edge detection to
Object in one image is identified to obtain recognition result.The object in the first image is known using the method for edge detection
The subject area not obtained afterwards corresponds to the surface defect information of object to be measured.In addition, information detecting apparatus can also detect
To after subject area, the pixel value of the characteristic point in subject area is obtained, the detailed of the surface defect information of object to be measured is obtained
Defect.For example, when the spherical distribution of the pixel value that information detecting apparatus gets the characteristic point in subject area, infomation detection
Equipment is to determine that the surface defect to the subject area is in spherical distribution；For another example when information detecting apparatus gets target area
When the curved EDS maps of the pixel value of the characteristic point in domain, information detecting apparatus is to determine that the surface defect to the subject area is in
Curvilinear plane；In another example when information detecting apparatus get the pixel value of the characteristic point in subject area in conical surface distribution or its
Its irregular surface be distributed when, information detecting apparatus be determine to the subject area surface defect in the conical surface or it is other not
The surface of rule.
In embodiments of the present invention, information detecting apparatus can be believed by obtaining the parameter of the characteristic point of subject surface to be measured
The surface defect information to determine object to be measured is ceased, due to the process of the parameter information in the characteristic point for obtaining subject surface to be measured
In, the Magnetic Field that object to be measured is shot or detected to the entirety of object to be measured is not needed, therefore not will receive illumination
Or the influence of subject surface to be measured greasy dirt, it is also not limited to the material of object to be measured, to solve infomation detection in the related technology
Equipment cannot accurate testing product surface defect information the problem of, therefore, the information detecting method energy in the embodiment of the present invention
The enough surface defect information for accurately detecting object to be measured.
Based on previous embodiment, the embodiment of the present invention provides a kind of information detecting method, is applied to information detecting apparatus, such as
Shown in Fig. 2, method includes the following steps:
Step 201: obtaining the depth information of the characteristic point of subject surface to be measured.
The depth information for obtaining the characteristic point of subject surface to be measured may include: when object relative information to be measured detection is set
For when multiple preset directions are mobile, the characteristic point of information detecting apparatus and subject surface to be measured is obtained on each preset direction
Range information；The depth information of the characteristic point of subject surface to be measured is determined based on range information.
Information detecting apparatus is equipped with range sensor, and information detecting apparatus periodically obtains information by range sensor
The distance between detection device and object to be measured obtain the depth information of the characteristic point of subject surface to be measured.In implementing one,
Information detecting apparatus can not contact, in order to object to be measured and infomation detection during detection with subject surface to be measured
Generate relative motion between equipment, information detecting apparatus can be based on the distance between object to be measured got and to be measured
The design parameter of object determines the depth information of the characteristic point of subject surface to be measured.Wherein, design parameter includes: design shape
Parameter and design size parameter.In another embodiment, information detecting apparatus, can be with Object table to be measured during detection
Face contact, in this way, the distance between information detecting apparatus and object to be measured that information detecting apparatus is got are object to be measured
The depth information of the characteristic point on surface.Wherein, it can be to be measured for relative motion being generated between object and information detecting apparatus to be measured
Object movement and information detecting apparatus does not move or object to be measured does not move and information detecting apparatus movement or it is to be measured
Object and information detecting apparatus all generate movement.
Moving direction of the object relative information detection device to be measured when multiple preset directions are mobile can be based on workpiece
Form parameter determines.For example, multiple default moving directions can be parallel with axis when the shape of object to be measured is cylindric
Direction, or using axis as the circumferencial direction in the center of circle.For another example when object to be measured is coniform, multiple default sides
To can be a plurality of direction for being parallel to element of cone, or using axis as the circumferencial direction in the center of circle.The embodiment of the present invention is unlimited
Moving direction of the fixed object relative information detection device to be measured when multiple preset directions are mobile, as long as information detecting apparatus can
Collect the depth information that can characterize the characteristic point of object to be measured.
In other embodiments, information detecting apparatus can be equipped with multiple range sensors, and multiple range sensors can be with
It works at the same time.In this way, the depth information of the characteristic point of subject surface to be measured can be obtained more rapidly.
Wherein, when object relative information detection device to be measured is when multiple preset directions are mobile, on each preset direction
The range information for obtaining the characteristic point of information detecting apparatus and subject surface to be measured, can be realized by following steps:
A, the movement speed when object relative information detection device to be measured when multiple preset directions are mobile is obtained.
Movement speed of the object relative information detection device to be measured when multiple preset directions are mobile, can be by user certainly
Row setting, for example, in one embodiment, the movement speed set can be stored in the storage in information detecting apparatus by user
In, when information detecting apparatus moves and Devices to test does not move, the processor of information detecting apparatus can be called in memory
The movement speed of storage, to obtain movement speed of the object relative information detection device to be measured on multiple preset directions.To
Surveying movement speed of the object relative information detection device when multiple preset directions are mobile can be the same or different.
B, it is based on movement speed, determines collection period.
In this step, it is based on movement speed, collection period is determined, can be accomplished by the following way:
B1, the detection accuracy for obtaining information detecting apparatus.
The detection accuracy of information detecting apparatus can correspond to the density information for the characteristic point that information detecting apparatus is got.
The detection accuracy of information detecting apparatus is higher, then the density for the characteristic point that information detecting apparatus is got is bigger.Infomation detection is set
Standby to be equipped with input equipment, input equipment is, for example, display screen, keyboard or knob etc., and information detecting apparatus can be by defeated
Enter equipment and receives the input operation of user to obtain the detection accuracy of information detecting apparatus.Detection accuracy characterizes the surface got
Defect information and the degree of closeness to be measured to probable surface defect information pass through the table got if inspection precision is higher
Planar defect information is more accurate.
B2, it is based on movement speed and detection accuracy, determines collection period.
Collection period can be calculated by movement speed and detection accuracy in information detecting apparatus.Collection period and movement
Speed and the proportional relationship of detection accuracy.
In embodiments of the present invention, collection period can be a definite value, i.e. information detecting apparatus fixed is adopted with one
The collection period constantly obtains the distance between information detecting apparatus and object to be measured.In other embodiments, collection period can be with
To be the period changed over time, i.e., information detecting apparatus is obtained between information detecting apparatus and object to be measured with cycle dynamics
Distance.In one embodiment, the occurrence of cycle dynamics can be determined based on the design parameter of object to be measured, for example,
When object to be measured is coniform, information detecting apparatus can acquire the conical surface close to conical base with the biggish sampling period
Range information, with the lesser sampling period acquire close to conical tip conical surface range information.
C, according to the sampling period, the characteristic point of information detecting apparatus and subject surface to be measured is obtained on each preset direction
Range information.
It, can by obtaining the range information of the characteristic point of information detecting apparatus and subject surface to be measured on each preset direction
To obtain the range information of the characteristic point of information detecting apparatus and subject surface to be measured on multiple preset directions, to obtain information
The range information of detection device and subject surface to be measured characteristic point, and then obtain the depth letter of the characteristic point of subject surface to be measured
Breath.For example, when information detecting apparatus needs to acquire the range information on N number of preset direction, information detecting apparatus can it is opposite to
Object is surveyed to move on N number of preset direction, if information detecting apparatus acquires M range information on each preset direction, letter
The detection device then available range information to information detecting apparatus and N × M characteristic point of subject surface to be measured is ceased, in turn
The depth information of N × M characteristic point of the available subject surface to be measured of information detecting apparatus.
Step 202: the depth information based on characteristic point obtains pixel value corresponding with the depth information of characteristic point.
The pixel value of each characteristic point of the subject surface to be measured in this step and the depth information of this feature point are unique
It is corresponding.
Step 203: pixel value being mapped on pixel corresponding with characteristic point, and the first figure is generated based on pixel
Picture.
Information detecting apparatus can recorde to be measured during obtaining the depth information of characteristic point of subject surface to be measured
Pixel value based on Depth Information Acquistion is mapped in by the location information of each characteristic point of subject surface by the location information
On pixel.For example, after the depth information that information detecting apparatus detects M characteristic point on first preset direction, base
It is mapped on M pixel of the first row in M pixel value of Depth Information Acquistion of M characteristic point, and by the M pixel value；
It detects on second preset direction after the depth information of M characteristic point, will be obtained based on depth information in information detecting apparatus
M pixel value be mapped on M pixel of the second row；And so on, until information detecting apparatus detects that n-th is default
On direction after the depth information of M characteristic point, the M pixel value obtained based on depth information is mapped to M pixel of Nth row
Point on.In this way, information detecting apparatus can obtain N × M pixel based on the depth information of the N × M characteristic point got
Value, and N × M pixel value is mapped on N × M pixel.In addition, since image is formed by multiple pixels, because
This information detecting apparatus can generate the first image based on N × M pixel.
Step 204: the object in the first image being identified to obtain recognition result, and is determined based on recognition result to be measured
The surface defect information of object.
Wherein, the object in the first image is identified to obtain recognition result, and determined based on recognition result it is to be measured right
The surface defect information of elephant may include: to be filtered denoising to the first image, obtain the second image；It is examined based on image border
Survey method identifies the object in the second image to obtain recognition result, and determines that the surface of object to be measured lacks based on recognition result
Fall into information.
Being filtered denoising to the first image can be with are as follows: using the method for median filtering or mean filter to the first image
Denoising is filtered,
In embodiments of the present invention, edge detection method can for based on Roberts operator edge detection method, be based on
The edge detection method of Sobel operator, the edge detection method based on Prewitt operator, the edge detection based on Laplace operator
Method combines the edge detection method of (Laplacian of Gaussian, LOG) operator based on gaussian sum Laplce, is based on
The edge detection method of Canny operator, wavelet analysis method, fuzzy algorithmic approach and artificial neural network method in any method.
It should be noted that in the present embodiment with the explanation of same steps in other embodiments and identical content, Ke Yican
According to the description in other embodiments, details are not described herein again.
In embodiments of the present invention, information detecting apparatus can be believed by obtaining the parameter of the characteristic point of subject surface to be measured
The surface defect information to determine object to be measured is ceased, due to the process of the parameter information in the characteristic point for obtaining subject surface to be measured
In, the Magnetic Field that object to be measured is shot or detected to the entirety of object to be measured is not needed, therefore not will receive illumination
Or the influence of subject surface to be measured greasy dirt, it is also not limited to the material of object to be measured, to solve infomation detection in the related technology
Equipment cannot accurate testing product surface defect information the problem of, therefore, the information detecting method energy in the embodiment of the present invention
The enough surface defect information for accurately detecting object to be measured.In addition, since information detecting apparatus is by the processing to the first image
The surface defect information of object to be measured is obtained, the method for obtaining the surface defect of object to be measured is simple.
Based on previous embodiment, the embodiment of the present invention provides a kind of information detecting method, is applied to information detecting apparatus, such as
Shown in Fig. 3, method includes the following steps:
Step 301: obtaining the surface parameter information of object to be measured.
Wherein, surface parameter information includes the parameter information of the characteristic point of subject surface to be measured.
Step 302: parameter information and presetted pixel value range based on characteristic point determine the parameter information and picture of characteristic point
Transformational relation between element value.
In one embodiment, the specific embodiment of step 302 may include: in the parameter information of determining characteristic point most
Big parameter information and minimum parameter information, and determine the max pixel value and minimum pixel value in presetted pixel value range；It is based on
Maximum parameter information, minimum parameter information, max pixel value and minimum pixel value determine the parameter information and pixel of characteristic point
Transformational relation between value.It should be understood that the maximum parameter information, minimum parameter information in the present embodiment are set based on infomation detection
What the surface parameter information of the standby object to be measured got determined；Max pixel value and minimum pixel value are user's sets itselfs
, the embodiment of the present invention does not limit the value of max pixel value and minimum pixel value, such as when presetted pixel value set by user
When range is 0-255, max pixel value is 255, and minimum pixel value is 0.
In another embodiment, the specific embodiment of step 302 can also comprise determining that in the parameter information of characteristic point
Maximum parameter information and minimum parameter information, and determine presetted pixel value range in max pixel value and minimum pixel value；
The difference that max pixel value subtracts minimum pixel value is calculated, pixel value difference is obtained；It calculates maximum parameter information and subtracts minimum parameter
The difference of information, obtains parameter difference, be based on pixel value difference and parameter difference, determine characteristic point parameter information and pixel value it
Between transformational relation.
In another embodiment, the specific embodiment of step 302 can also comprise determining that in the parameter information of characteristic point
Maximum parameter information and minimum parameter information, and determine presetted pixel value range in max pixel value and minimum pixel value；
The difference that max pixel value subtracts minimum pixel value is calculated, pixel value difference is obtained；It calculates maximum parameter information and subtracts minimum parameter
The difference of information, obtains parameter difference；Pixel value difference is calculated divided by the quotient of parameter difference, obtains the first conversion parameter；Calculate the
The product of one conversion parameter and minimum parameter information obtains the second conversion parameter；Based on the first conversion parameter and the second conversion ginseng
Number, establishes the transformational relation between the parameter information of characteristic point and pixel value.
Wherein, the transformational relation between the parameter information and pixel value of characteristic point is expressed by formula (1):
Wherein, AiFor the pixel value of subject surface to be measured ith feature point, AmaxFor max pixel value, AminFor minimum image
Element value, LmaxFor the maximum parameter information in the parameter information of the characteristic point of subject surface to be measured, LminFor subject surface to be measured
Minimum parameter information in the parameter information of characteristic point, LiFor the parameter information of subject surface to be measured ith feature point.In this reality
It applies in example, AmaxValue is 255, AminValue is 0, in other embodiments, AmaxAnd AminValue can be to be other, the present invention
Embodiment is not construed as limiting this.
Step 303: parameter information and transformational relation based on characteristic point obtain picture corresponding with the parameter information of characteristic point
Element value.
By this step, information detecting apparatus can get with the unique corresponding pixel value of the parameter information of characteristic point,
Parameter information and transformational relation based on characteristic point obtain the specific method of pixel value corresponding with the parameter information of characteristic point, ask
Refering to above-mentioned formula (1).
Step 304: pixel value being mapped on pixel corresponding with characteristic point, and the first figure is generated based on pixel
Picture.
Step 305: the object in the first image being identified to obtain recognition result, and is determined based on recognition result to be measured
The surface defect information of object.
It should be noted that in the present embodiment with the explanation of same steps in other embodiments and identical content, Ke Yican
According to the description in other embodiments, details are not described herein again.
In embodiments of the present invention, information detecting apparatus can be believed by obtaining the parameter of the characteristic point of subject surface to be measured
The surface defect information to determine object to be measured is ceased, due to the process of the parameter information in the characteristic point for obtaining subject surface to be measured
In, the Magnetic Field that object to be measured is shot or detected to the entirety of object to be measured is not needed, therefore not will receive illumination
Or the influence of subject surface to be measured greasy dirt, it is also not limited to the material of object to be measured, to solve infomation detection in the related technology
Equipment cannot accurate testing product surface defect information the problem of, therefore, the information detecting method energy in the embodiment of the present invention
The enough surface defect information for accurately detecting object to be measured.In addition, since information detecting apparatus passes through the characteristic point that will acquire
Parameter information is converted to pixel value corresponding with the parameter information of characteristic point, so as to generate pixel value with notable difference
The first image, and the first image can be handled by way of the processing of image, not only make to obtain object to be measured
The method of surface defect information is simple, and the surface defect information of the object to be measured enabled to is more accurate.
Based on previous embodiment, the embodiment of the present invention provides a kind of information detecting apparatus 4, which can
To be applied in a kind of information detecting method that the corresponding embodiment in Fig. 1~3 provides, referring to shown in Fig. 4, the information detecting apparatus
4 may include: processor 41, memory 42 and communication bus 43, in which:
Communication bus 43 is for realizing the communication connection between processor 41 and memory 42.
Processor 41 is used to execute the program of the information detecting method stored in memory 42, to perform the steps of
Obtain the surface parameter information of object to be measured；Surface parameter information includes the parameter of the characteristic point of subject surface to be measured
Information；
Parameter information based on characteristic point obtains pixel value corresponding with the parameter information of characteristic point, and is based on pixel value
Generate the first image；
Object in first image is identified to obtain recognition result, and determines the table of object to be measured based on recognition result
Planar defect information.
In other embodiments of the invention, processor 41 is used to execute the acquisition object to be measured stored in memory 42
Surface parameter information, to perform the steps of
Obtain the depth information of the characteristic point of subject surface to be measured；
Correspondingly, processor 41 obtains and spy for executing the parameter information based on characteristic point stored in memory 42
The corresponding pixel value of parameter information of point is levied, and the first image is generated based on pixel value, to perform the steps of
Depth information based on characteristic point obtains pixel value corresponding with the depth information of characteristic point；
Pixel value is mapped on pixel corresponding with characteristic point, and the first image is generated based on pixel.
In other embodiments of the invention, processor 41 is for executing the acquisition Object table to be measured stored in memory 42
The depth information of the characteristic point in face, to perform the steps of
When object relative information detection device to be measured is when multiple preset directions are mobile, acquisition is believed on each preset direction
Cease the range information of the characteristic point of detection device and subject surface to be measured；
The depth information of the characteristic point of subject surface to be measured is determined based on range information.
In other embodiments of the invention, processor 41 be used for execute stored in memory 42 when object to be measured it is opposite
Information detecting apparatus obtains information detecting apparatus and Object table to be measured when multiple preset directions are mobile on each preset direction
The range information of the characteristic point in face, to perform the steps of
Obtain the movement speed when object relative information detection device to be measured when multiple preset directions are mobile；
Based on movement speed, collection period is determined；
According to the sampling period, the characteristic point of information detecting apparatus and subject surface to be measured is obtained on each preset direction
Range information.
In other embodiments of the invention, processor 41 be used to execute stored in memory 42 based on movement speed,
Collection period is determined, to perform the steps of
Obtain the detection accuracy of information detecting apparatus；
Based on movement speed and detection accuracy, collection period is determined.
In other embodiments of the invention, processor 41 is for executing the ginseng based on characteristic point stored in memory 42
Number information obtains pixel value corresponding with the parameter information of characteristic point, and generates the first image based on pixel value, following to realize
Step:
Parameter information and presetted pixel value range based on characteristic point, determine between the parameter information of characteristic point and pixel value
Transformational relation；
Parameter information and transformational relation based on characteristic point obtain pixel value corresponding with the parameter information of characteristic point；
Pixel value is mapped on pixel corresponding with characteristic point, and the first image is generated based on pixel.
In other embodiments of the invention, processor 41 is for executing the ginseng based on characteristic point stored in memory 42
Number information and presetted pixel value range, determine the transformational relation between the parameter information of characteristic point and pixel value, following to realize
Step:
It determines the maximum parameter information and minimum parameter information in the parameter information of characteristic point, and determines presetted pixel value model
Max pixel value and minimum pixel value in enclosing；
The difference that max pixel value subtracts minimum pixel value is calculated, pixel value difference is obtained；
The difference that maximum parameter information subtracts minimum parameter information is calculated, parameter difference is obtained；
Pixel value difference is calculated divided by the quotient of parameter difference, obtains the first conversion parameter；
The product for calculating the first conversion parameter Yu minimum parameter information obtains the second conversion parameter；
Based on the first conversion parameter and the second conversion parameter, the conversion between the parameter information of characteristic point and pixel value is established
Relationship.
In other embodiments of the invention, processor 41 be used for execute stored in memory 42 in the first image
Object is identified to obtain recognition result, and the surface defect information of object to be measured is determined based on recognition result, following to realize
Step:
Denoising is filtered to the first image, obtains the second image；
The object in the second image is identified based on Image Edge-Detection method to obtain recognition result, and based on identification knot
Fruit determines the surface defect information of object to be measured.
It should be noted that in the present embodiment step performed by processor specific implementation process, be referred to Fig. 1~
The realization process in information detecting method that 3 corresponding embodiments provide, details are not described herein again.
In embodiments of the present invention, information detecting apparatus can be believed by obtaining the parameter of the characteristic point of subject surface to be measured
The surface defect information to determine object to be measured is ceased, due to the process of the parameter information in the characteristic point for obtaining subject surface to be measured
In, the Magnetic Field that object to be measured is shot or detected to the entirety of object to be measured is not needed, therefore not will receive illumination
Or the influence of subject surface to be measured greasy dirt, it is also not limited to the material of object to be measured, to solve infomation detection in the related technology
Equipment cannot accurate testing product surface defect information the problem of, therefore, the information detecting method energy in the embodiment of the present invention
The enough surface defect information for accurately detecting object to be measured.
Based on previous embodiment, the embodiment of the present invention provides a kind of computer readable storage medium, computer-readable to deposit
Storage media is stored with one or more program, which can be executed by one or more processor, with
It performs the steps of
Obtain the surface parameter information of object to be measured；Surface parameter information includes the parameter of the characteristic point of subject surface to be measured
Information；
Parameter information based on characteristic point obtains pixel value corresponding with the parameter information of characteristic point, and is based on pixel value
Generate the first image；
Object in first image is identified to obtain recognition result, and determines the table of object to be measured based on recognition result
Planar defect information.
In other embodiments of the invention, which can be executed by one or more processor and obtain
The surface parameter information of object to be measured is taken, to perform the steps of
Obtain the depth information of the characteristic point of subject surface to be measured；
Correspondingly, which can execute the parameter based on characteristic point by one or more processor and believe
Breath obtains pixel value corresponding with the parameter information of characteristic point, and generates the first image based on pixel value, to realize following step
It is rapid:
Depth information based on characteristic point obtains pixel value corresponding with the depth information of characteristic point；
Pixel value is mapped on pixel corresponding with characteristic point, and the first image is generated based on pixel.
In other embodiments of the invention, which can be executed by one or more processor and obtain
The depth information of the characteristic point of subject surface to be measured is taken, to perform the steps of
When object relative information detection device to be measured is when multiple preset directions are mobile, acquisition is believed on each preset direction
Cease the range information of the characteristic point of detection device and subject surface to be measured；
The depth information of the characteristic point of subject surface to be measured is determined based on range information.
In other embodiments of the invention, which can be executed by one or more processor and work as
Object relative information detection device to be measured obtains information detecting apparatus on each preset direction when multiple preset directions are mobile
With the range information of the characteristic point of subject surface to be measured, to perform the steps of
Obtain the movement speed when object relative information detection device to be measured when multiple preset directions are mobile；
Based on movement speed, collection period is determined；
According to the sampling period, the characteristic point of information detecting apparatus and subject surface to be measured is obtained on each preset direction
Range information.
In other embodiments of the invention, which can execute base by one or more processor
In movement speed, collection period is determined, to perform the steps of
Obtain the detection accuracy of information detecting apparatus；
Based on movement speed and detection accuracy, collection period is determined.
In other embodiments of the invention, which can execute base by one or more processor
In the parameter information of characteristic point, pixel value corresponding with the parameter information of characteristic point is obtained, and the first figure is generated based on pixel value
Picture, to perform the steps of
Parameter information and presetted pixel value range based on characteristic point, determine between the parameter information of characteristic point and pixel value
Transformational relation；
Parameter information and transformational relation based on characteristic point obtain pixel value corresponding with the parameter information of characteristic point；
Pixel value is mapped on pixel corresponding with characteristic point, and the first image is generated based on pixel.
In other embodiments of the invention, which can execute base by one or more processor
In the parameter information and presetted pixel value range of characteristic point, determine that the conversion between the parameter information of characteristic point and pixel value is closed
System, to perform the steps of
It determines the maximum parameter information and minimum parameter information in the parameter information of characteristic point, and determines presetted pixel value model
Max pixel value and minimum pixel value in enclosing；
The difference that max pixel value subtracts minimum pixel value is calculated, pixel value difference is obtained；
The difference that maximum parameter information subtracts minimum parameter information is calculated, parameter difference is obtained；
Pixel value difference is calculated divided by the quotient of parameter difference, obtains the first conversion parameter；
The product for calculating the first conversion parameter Yu minimum parameter information obtains the second conversion parameter；
Based on the first conversion parameter and the second conversion parameter, the conversion between the parameter information of characteristic point and pixel value is established
Relationship.
In other embodiments of the invention, which can be by the execution pair of one or more processor
Object in first image is identified to obtain recognition result, and determines that the surface defect of object to be measured is believed based on recognition result
Breath, to perform the steps of
Denoising is filtered to the first image, obtains the second image；
The object in the second image is identified based on Image Edge-Detection method to obtain recognition result, and based on identification knot
Fruit determines the surface defect information of object to be measured.
It should be noted that in the present embodiment step performed by processor specific implementation process, be referred to Fig. 1~
The realization process in information detecting method that 3 corresponding embodiments provide, details are not described herein again.
It should be noted that above-mentioned processor can be application-specific IC (ASIC, Application
Specific Integrated Circuit), digital signal processor (DSP, Digital Signal Processor), number
Word signal processing apparatus (DSPD, Digital Signal Processing Device), programmable logic device (PLD,
Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate
Array), central processing unit (CPU, Central Processing Unit), controller, in microcontroller, microprocessor extremely
Few one kind.It is to be appreciated that realizing that the electronic device of above-mentioned processor function can also be to be other, the embodiment of the present application is not made to have
Body limits.
It should be noted that above-mentioned computer storage medium/memory can be read-only memory (Read Only
Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable programmable
Read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable is read-only deposits
Reservoir (Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic random access
Memory (Ferromagnetic Random Access Memory, FRAM), flash memory (Flash Memory), magnetic table
The memories such as face memory, CD or CD-ROM (Compact Disc Read-Only Memory, CD-ROM)；It can also be with
It is the various terminals for including one of above-mentioned memory or any combination, such as mobile phone, computer, tablet device, individual digital
Assistant etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited from sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Above-mentioned the embodiment of the present application serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, the technical solution of the application substantially in other words does the prior art
The part contributed out can be embodied with the pattern of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the application.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be from every one stream in computer program instructions implementation flow chart and/or block diagram
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all to utilize this Shen
Please equivalent structure or equivalent flow shift made by specification and accompanying drawing content, be applied directly or indirectly in other relevant skills
Art field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of information detecting method is applied to information detecting apparatus, which comprises
Obtain the surface parameter information of object to be measured；The surface parameter information includes the characteristic point of the subject surface to be measured
Parameter information；
Based on the parameter information of the characteristic point, pixel value corresponding with the parameter information of the characteristic point is obtained, and is based on institute
It states pixel value and generates the first image；
Object in the first image is identified to obtain recognition result, and is determined based on the recognition result described to be measured
The surface defect information of object.
2. the method according to claim 1, wherein the surface parameter information for obtaining object to be measured, comprising:
Obtain the depth information of the characteristic point of the subject surface to be measured；
Correspondingly, the parameter information based on the characteristic point obtains pixel corresponding with the parameter information of the characteristic point
Value, and the first image is generated based on the pixel value, comprising:
Based on the depth information of the characteristic point, pixel value corresponding with the depth information of the characteristic point is obtained；
The pixel value is mapped on pixel corresponding with the characteristic point, and the first figure is generated based on the pixel
Picture.
3. according to the method described in claim 2, it is characterized in that, the depth of the characteristic point for obtaining the subject surface to be measured
Spend information, comprising:
When the object to be measured relative to the information detecting apparatus when multiple preset directions are mobile, obtained on each preset direction
Take the range information of the characteristic point of the information detecting apparatus and the subject surface to be measured；
The depth information of the characteristic point of the subject surface to be measured is determined based on the range information.
4. according to the method described in claim 3, it is characterized in that, described when the relatively described infomation detection of the object to be measured is set
For when multiple preset directions are mobile, the information detecting apparatus and the subject surface to be measured are obtained on each preset direction
Characteristic point range information, comprising:
Obtain the movement speed when the object to be measured relative to the information detecting apparatus when multiple preset directions are mobile；
Based on the movement speed, collection period is determined；
According to the sampling period, the information detecting apparatus and the subject surface to be measured are obtained on each preset direction
The range information of characteristic point.
5. according to the method described in claim 4, it is characterized in that, it is described be based on the movement speed, determine collection period, wrap
It includes:
Obtain the detection accuracy of the information detecting apparatus；
Based on the movement speed and the detection accuracy, the collection period is determined.
6. method according to any one of claims 1 to 5, which is characterized in that the parameter letter based on the characteristic point
Breath obtains pixel value corresponding with the parameter information of the characteristic point, and generates the first image based on the pixel value, comprising:
Parameter information and presetted pixel value range based on the characteristic point determine the parameter information and the picture of the characteristic point
Transformational relation between element value；
Parameter information and the transformational relation based on the characteristic point obtain picture corresponding with the parameter information of the characteristic point
Element value；
The pixel value is mapped on pixel corresponding with the characteristic point, and the first figure is generated based on the pixel
Picture.
7. according to the method described in claim 6, it is characterized in that, the parameter information and default picture based on the characteristic point
Element value range, determines the transformational relation between the parameter information of the characteristic point and the pixel value, comprising:
It determines the maximum parameter information and minimum parameter information in the parameter information of the characteristic point, and determines the presetted pixel
The max pixel value and minimum pixel value being worth in range；
The difference that the max pixel value subtracts the minimum pixel value is calculated, pixel value difference is obtained；
The difference that the maximum parameter information subtracts the minimum parameter information is calculated, parameter difference is obtained；
The pixel value difference is calculated divided by the quotient of the parameter difference, obtains the first conversion parameter；
The product for calculating first conversion parameter Yu the minimum parameter information, obtains the second conversion parameter；
Based on first conversion parameter and second conversion parameter, establish the characteristic point parameter information and the pixel
Transformational relation between value.
8. the method according to claim 1, wherein the object in the first image identify
To recognition result, and determine based on the recognition result surface defect information of the object to be measured, comprising:
Denoising is filtered to the first image, obtains the second image；
The object in second image is identified based on Image Edge-Detection method to obtain recognition result, and is based on the knowledge
Other result determines the surface defect information of the object to be measured.
9. a kind of information detecting apparatus, which is characterized in that the equipment includes: processor, memory and communication bus；
The communication bus is for realizing the communication connection between processor and memory；
The processor is used to execute the program of the information detecting method in memory, to perform the steps of
Obtain the surface parameter information of object to be measured；The surface parameter information includes the characteristic point of the subject surface to be measured
Parameter information；
Based on the parameter information of the characteristic point, pixel value corresponding with the parameter information of the characteristic point is obtained, and is based on institute
It states pixel value and generates the first image；
Object in the first image is identified to obtain recognition result, and is determined based on the recognition result described to be measured
The surface defect information of object.
10. a kind of computer storage medium, which is characterized in that the computer storage medium is stored with one or more journey
Sequence, one or more of programs can be executed by one or more processor, to realize as any in claim 1 to 8
The step of information detecting method described in item.
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