CN113490316A - Light filling system and light filling lamp - Google Patents
Light filling system and light filling lamp Download PDFInfo
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- CN113490316A CN113490316A CN202110731183.4A CN202110731183A CN113490316A CN 113490316 A CN113490316 A CN 113490316A CN 202110731183 A CN202110731183 A CN 202110731183A CN 113490316 A CN113490316 A CN 113490316A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/125—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention discloses a light supplement system and a light supplement lamp, relates to the technical field of optics, and solves the technical problems of glare and poor quality of photographed images caused by light supplement and narrow dynamic range of light supplement in the prior art. The light supplement system at least comprises: a light supplement lamp and an image acquisition processing control device which are composed of a plurality of light emitting microstructures; the image acquisition processing control device is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets a preset condition in an image, determining a real-time distance between the shot object and the light supplementing lamp, determining the light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp; and the light supplement lamp is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a light supplementing system and a light supplementing lamp.
Background
The monitoring system is one of the most applied systems in production and life, the most important point of video monitoring is to clearly reflect the picture of the monitoring terminal, however, due to various reasons such as small dynamic range of a sensor of a camera, large difference between the brightness of a shot object and the ambient light, and the distance between the shot object and the camera and a light supplement lamp, some areas of an image are overexposed, some areas are completely black, and the image quality is seriously affected.
Meanwhile, the light supplement lamp of the camera in the prior art can generate dazzling or glare effects, and potential safety hazards exist if the vehicle or the pedestrian is easily subjected to snapshot to cause visual interference on drivers and passengers and pedestrians.
In addition, the dynamic range that present intelligent light filling lamp can't realize regional light filling or regional light filling is very narrow, and is very little to promoting the wide dynamic effect of image.
Disclosure of Invention
The invention provides a light supplementing system and a light supplementing lamp, and solves the technical problems of glare and unclear photographed images caused by photographing and narrow dynamic range of light supplementing in the prior art.
In a first aspect of the present invention, an embodiment of the present invention provides a light supplement system, including:
a light supplement lamp and an image acquisition processing control device which are composed of a plurality of light emitting microstructures;
the image acquisition processing control device is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets a preset condition in an image, determining a real-time distance between the shot object and the light supplementing lamp, determining the light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp;
and the light supplement lamp is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal.
The light supplementing system in the embodiment of the invention determines the corresponding to-be-processed area meeting the preset condition by dynamically tracking the image information of the shot object collected in the visual field, wherein the corresponding to-be-processed area of the preset condition can be a human eye area, a light and dark area and other areas needing important attention, and dynamically adjusts the light emitting state of the light supplementing lamp in real time according to different conditions and different requirements of different areas so as to meet the required requirements.
Optionally, in some embodiments, the specific manner of determining the light emitting state of each light emitting microstructure according to the real-time distance and the region to be processed is as follows: and determining the light emitting state of each light emitting microstructure in the to-be-processed area at the real-time distance according to the predetermined mapping relation between the shooting coordinate system and the light supplement lamp coordinate system at different distances.
According to the embodiment of the invention, the light emitting state of each light emitting microstructure corresponding to the region to be processed at the real-time distance is determined according to the predetermined mapping relation between the shooting coordinate system and the light supplement lamp coordinate system at different distances, the light emitting state of each light emitting microstructure corresponding to the region to be processed can be rapidly determined by the method, the state of each light emitting microstructure is determined to generate a required control signal, and the light supplement lamp adjusts the brightness in real time and rapidly according to the control signal, so that the real-time dynamic adjustment requirement of the current light supplement system can be met.
Optionally, in some embodiments, the corresponding to-be-processed region is a human eye region determined by analyzing the image information; the light supplement lamp is specifically used for controlling the light sources of the light emitting microstructures corresponding to the human eye area to be turned off according to the control signal.
In the embodiment of the invention, the corresponding to-be-processed area is the human eye area determined by analyzing the image information, when a human face is analyzed, the human eye area is determined by an algorithm, the light source of each light-emitting microstructure corresponding to the human eye area is closed, the sight line interference caused by glare generated by light supplement is prevented, the discomfort caused by the light supplement is reduced, each light-emitting microstructure of the light supplement lamp can be dynamically adjusted in real time according to different positions of a driver and/or a pedestrian, the glare generated by the light supplement lamp in the visible range of the light supplement system is avoided for the driver and/or the pedestrian, the glare-free light supplement is realized, the light is prevented from directly irradiating the pedestrian or the eyes of the driver, and the safety of the driver and the pedestrian is improved.
Optionally, in some embodiments, the corresponding to-be-processed region is a light and dark region determined by analyzing the image information; the light supplement lamp is specifically used for: and controlling the light sources of the light and dark regions corresponding to the light-emitting microstructures according to the control signal to reduce the light supplement intensity of the over-bright regions and/or improve the light supplement intensity of the over-dark regions.
The corresponding to-be-processed area in the embodiment of the invention is a bright and dark area determined by analyzing the image information, when an image with excessive brightness and excessive darkness exists in a partial area of the analyzed image, the bright and dark area of the current image is judged, the luminous intensity of a light supplement lamp which is required to be adjusted and corresponds to the bright and dark area is analyzed and calculated in real time, the light supplement lamp enables the light supplement intensity of the excessively bright area to be rapidly reduced or the brightness of the excessively dark area to be instantly improved according to a control signal, a light supplement system dynamically adjusts the luminous intensity of the light supplement lamp according to the change of the image, the definition of the image is greatly increased, the details of the image are ensured to be clear and visible, and the wide dynamic range of the image is greatly improved.
Optionally, in some embodiments, the corresponding to-be-processed area is a ground area around the person and/or the vehicle determined by analyzing the image information; the light supplement lamp is specifically used for: and controlling the brightness of the light source of each light-emitting microstructure corresponding to the ground area according to a control signal determined by a preset pattern, and projecting the pattern.
The corresponding to-be-processed area is the area around the person and/or the vehicle determined by analyzing the image information, when the fact that the person and/or the vehicle pass through is analyzed, different symbols or information can be projected according to different preset patterns set under different environments and different requirements to remind or inform the passing person, the passing vehicle and the like in the visual field, different symbols can be set according to different requirements, and various requirements are met.
Optionally, in some embodiments, the image acquisition processing control device includes: a distance measuring means and a monocular camera; the distance measuring component is used for measuring the real-time distance between the shot object and the light supplementing lamp and sending real-time distance information to the monocular camera; the monocular camera is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets preset conditions in an image, determining the light emitting state of each light emitting microstructure according to the received real-time distance information and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp.
Optionally, in some embodiments, the distance measuring component is a distance measuring sensor.
Optionally, in some embodiments, the image acquisition processing control device includes: a binocular sensor and a processor; the binocular sensor is used for acquiring image information of a shot object in a visual field in real time and sending the image information to the processor; the processor is used for receiving image information in the binocular sensor, determining a corresponding to-be-processed area which meets preset conditions in an image, determining a real-time distance between the shot object and the light supplementing lamp, determining the light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp.
In a second aspect of the present invention, an embodiment of the present invention provides a hybrid light supplement lamp, which includes a plurality of light emitting microstructures and a control chip, where the light emitting microstructures are disposed on a lamp panel, and the control chip is configured to control light emitting states of the light emitting microstructures to change according to a control signal.
The hybrid light supplement lamp in the embodiment of the invention is a hybrid light supplement lamp consisting of a plurality of light emitting microstructures with a control chip, and the control chip can independently switch on and off and adjust current of each independent light emitting microstructure to enable each light emitting microstructure to form a pixel which can be independently controlled in a light type, so that regulation and control can be completely performed according to the needs of scenes, the light supplement effect can be controlled by combining with the needed design, the hybrid light supplement lamp is suitable for various scenes, and the application field is wide.
Optionally, in some embodiments, the plurality of light emitting microstructures include a micro LED array and a discrete LED array, and the micro LED array and the discrete LED array are arranged in a regular structure.
The light-emitting microstructures of the hybrid light supplement lamp comprise a micro LED array and a discrete LED array which are arranged in a regular structure, different array arrangements are carried out according to the requirements of different scenes, the micro LED array is a high-density micro-size LED array integrated on a chip, each pixel can be independently addressed and independently driven to be lightened, the control of a pixel level can be realized in the application process, the control is accurate, and the discrete LED is used for supplementing the brightness of the edge part of the visual field of the micro LED array and ensuring the lighting degree.
Optionally, in some embodiments, the micro LED array is disposed in a central region of the lamp panel, and the discrete LED array is disposed in a peripheral region of the lamp panel.
In a third aspect of the present invention, an embodiment of the present invention provides a monitoring system, including a camera device and a hybrid light supplement lamp composed of a plurality of light emitting microstructures;
the camera device is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets a preset condition in an image, determining a real-time distance between the shot object and the hybrid light supplementing lamp, determining a control signal corresponding to a light emitting state of the hybrid light supplementing lamp to be controlled according to the real-time distance and the to-be-processed area, and sending the control signal to the hybrid light supplementing lamp;
the hybrid light supplementing lamp is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal so as to supplement light for the camera device.
In a fourth aspect of the present invention, an embodiment of the present invention provides an intelligent camera, where the intelligent camera has any one of the fill-in light systems according to the first aspect of the present invention.
For technical effects brought by the implementation manners of the third aspect to the fourth aspect in the embodiment of the present invention, reference may be made to the technical effects brought by the corresponding implementation manners in the first aspect, and details are not described here.
Based on the technical scheme, the embodiment of the invention solves the technical problem of non-glare light supplement, can improve the definition of the image and greatly improves the wide dynamic range of the image.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of a light supplement system according to an embodiment of the present invention;
fig. 2 is a block diagram of another light supplement system according to an embodiment of the present invention;
fig. 3 is a flowchart of a non-glare scheme for a monocular/binocular camera according to an embodiment of the present invention;
FIG. 4 is a flowchart of a scheme for improving image sharpness according to an embodiment of the present invention;
fig. 5-1, 5-2, and 5-3 are schematic structural views of a hybrid fill-in light according to an embodiment of the present invention;
fig. 6 is a block diagram of a monitoring system according to an embodiment of the present invention;
fig. 7 is a flowchart of a scheme for projecting symbols and/or logos according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
It should be noted that in the embodiments of the present invention, a plurality means two or more; and/or, describing the association relationship of the associated object, indicating that there may be three relationships, e.g., a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. In addition, it is to be understood that the terms first, second, etc. in the description of the present invention are used for distinguishing between descriptions and are not intended to indicate or imply relative importance or order to the skilled person.
Monitoring type equipment is under low lighting environment, and the image quality that the camera was gathered is relatively poor, can't clearly demonstrate the control picture, consequently, often need adopt the light filling lamp to carry out the light filling for the camera. When the light supplementing lamp is used for supplementing light for the camera, because the brightness of light generated by the light supplementing lamp is high, when people walk into the irradiation range of the white light lamp, glare is easily generated, and the definition of the image is influenced by over-brightness and over-darkness of the image, so that the shooting is unclear.
Based on the above technical problem, embodiments of the present invention provide a light supplement system, a hybrid light supplement lamp and a monitoring system. The light supplement system of the embodiment of the invention can be applied to but not limited to equipment and monitoring equipment which need light supplement, such as a monitoring camera arranged beside a street or at an entrance and exit of a cell, an intelligent camera with the light supplement system and the like.
In some embodiments, a block diagram of a fill-in light system 100 is provided, as shown in fig. 1, and includes a fill-in light 11 and an image acquisition processing control device 12, where if the device for acquiring an image is a monocular camera, the image acquisition processing control device 12 includes a distance measuring unit 121 and a monocular camera 122.
The distance measuring unit 121 is configured to measure a real-time distance between the object to be photographed and the fill-in light 11, and send real-time distance information to the monocular camera 122; the monocular camera 122 is configured to collect image information of a photographed object in a field of view in real time, determine a corresponding to-be-processed region in the image, which meets a preset condition, determine a light emitting state of each light emitting microstructure according to the received real-time distance information and the to-be-processed region, generate a control signal for controlling the light emitting state of each light emitting microstructure to change, and send the control signal to the light supplement lamp 11; and the light supplement lamp 11 is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal.
The distance measuring unit 121 may be one of distance measuring sensors, such as an ultrasonic distance measuring sensor, a laser distance measuring sensor, an infrared distance measuring sensor, and a 24GHZ radar sensor, in the process of practical application, the distance measuring sensor measures the distance between the object to be photographed and the light supplement lamp 11 in real time and sends real-time distance information to the monocular camera 122, and in the process of practical application, a suitable distance measuring sensor may be selected according to the comprehensive consideration of the application scene, environment, cost, and the like.
In some embodiments, there is provided another block diagram of the fill-in light system 100, which includes a fill-in light 11 and an image acquisition processing control device 12, where the image acquisition device is a binocular camera, and the image acquisition processing control device 12 includes a processor 123 and a binocular sensor 124, as shown in fig. 2.
The binocular sensor 124 is used for acquiring image information of a shot object in a visual field in real time and sending the image information to the processor; the processor 123 is configured to receive image information in the binocular sensor 124, determine a corresponding to-be-processed area in an image that meets a preset condition, determine a real-time distance between the photographed object and the light supplement lamp 11, determine a light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generate a control signal that controls the light emitting state of each light emitting microstructure to change, and send the control signal to the light supplement lamp 11; and the light supplement lamp 11 is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal.
The processor 123 may be a digital signal processor.
In some embodiments, a monocular/binocular camera glare-free light supplement scheme flow is provided, as shown in fig. 3, the technical scheme implements glare-free light supplement, and therefore, a region to be processed concerned by the technical scheme is a human eye region determined by analyzing the image, when a human face appears in the image, the human eye region is determined by different algorithms, light sources of light-emitting microstructures corresponding to the human eye region are turned off, line of sight interference caused by glare generated by light supplement is prevented, discomfort caused by light supplement is reduced, and the specific technical scheme is as follows:
s301: acquiring image information of a shot object in a visual field in real time, and analyzing face information in the image;
the objects to be photographed, including but not limited to pedestrians and drivers, may be analyzed for faces in the images through a face recognition algorithm, which is an existing empirical algorithm, which is performed by the monocular camera 122 if the device acquiring the images is the monocular camera, and by the processor 123 if the device acquiring the images is the binocular camera.
S302: whether a face is detected;
if the human face is detected, the method goes to steps S3031 and S3032, and if the human face is not detected, the current process is ended, and whether the human face appears in the acquisition visual field is continuously detected.
S3031: identifying the positions of human eyes in the image through a human eye identification algorithm;
s3032: measuring the distance between the shot object and the light supplement lamp through a radar ranging/binocular ranging algorithm;
s3031 and S3032 are carried out simultaneously, the human eye recognition algorithm in S3031 is an existing verified algorithm, and if the device for acquiring the image is a monocular camera, the algorithm is completed by a monocular camera 122; the distance measuring unit 121 measures the distance between the object to be photographed and the fill-in light in a distance measuring manner, and transmits the current distance information to the monocular camera 122 in real time.
If the device for collecting the image is a binocular camera, the eye recognition algorithm is completed by the processor 123, and the distance between the person and the fill-in light is measured through a binocular distance measurement algorithm.
In some embodiments, the binocular sensor 124 transmits the collected black and white images and color images to the processor 123 in real time by using a combination of black and white sensors and color sensors; the processor 123 receives the information of the black-and-white image and the color image of the binocular sensor 124 in real time and analyzes the received black-and-white image, if a human face is detected, the processor 123 calls a human eye recognition algorithm to recognize the position of the human eye in the image; and simultaneously, a binocular distance measurement algorithm is called to measure the distance between the person and the light supplement lamp.
In specific implementation, since the eye color information of the color image is affected by the absence of white light supplementary lighting at the eye part in the next frame, the binocular images need to be fused in the next frames of the light-emitting microstructures corresponding to the supplementary lighting lamps 11 in the eye region, and the color information of the human face and the forehead is supplemented to the eye part, so that the color image effect of the human eye is generated.
Therefore, if the device for acquiring the images is a binocular camera, a step of fusing the binocular images is additionally added, and compared with a monocular camera, a separate distance measuring part 121 is not needed, so that in the actual application process, selection can be performed according to problems of environment, use cost and the like.
S304: and determining the coordinates of the light-emitting microstructure of the light supplement lamp corresponding to the human eye region at the real-time distance according to the mapping relation between the shooting coordinate system and the light supplement lamp coordinate system.
In order to find out the coordinates of the light supplement lamp corresponding to the eye area more quickly, a lookup table of mapping relations between the shooting coordinate systems and the light supplement lamp coordinate systems at different distances is stored in the image acquisition and processing control device 12 in advance, the coordinates of the light supplement lamp corresponding to the eye area can be quickly located by obtaining the mapping relations between the shooting coordinate systems and the light supplement lamp coordinate systems at different distances, and then the light emitting microstructure of the light supplement lamp 11 corresponding to the eye area at a real-time distance is determined.
Naturally, the coordinates of the fill-in light corresponding to the eye regions at different distances may also be obtained in a calculation manner, and the calculation process may be completed by the monocular camera 122 or the processor 123, because the calculation manner has a very high requirement on the monocular camera 122 or the processor 123, when the number of the photographed objects in the collection field of view increases, the calculation amount thereof may be greatly increased, and therefore, a manner of determining the light emitting state of each light emitting microstructure corresponding to the region to be processed at the real-time distance by pre-storing the mapping relationship between the photographing coordinate system and the fill-in light coordinate system at different distances is preferred.
S305: generating a corresponding control signal according to the determined light-emitting microstructure coordinates of the light supplement lamp, and turning off the corresponding light source;
according to the embodiment, the light-emitting microstructures of the light supplement lamp can be dynamically adjusted in real time according to different positions of the driver and/or the pedestrian, so that the driver and/or the pedestrian can not generate glare due to the light supplement lamp in the visual range of the light supplement system, the light-emitting microstructures of the light supplement lamp can be dynamically adjusted in real time according to different positions of the driver and/or the pedestrian, the driver and/or the pedestrian can not generate glare due to the light supplement lamp in the visual range of the light supplement system, glare-free light supplement is realized, the situation that the light directly irradiates the pedestrian or eyes of the driver is avoided, and the safety of the driver and the pedestrian is improved.
In some embodiments, a flowchart of a scheme for improving image sharpness is further provided, as shown in fig. 4, the scheme may improve image sharpness, and may greatly improve a wide dynamic range of an image, therefore, a region to be processed is a bright-dark region determined by analyzing image information, when an image part region of the analyzed image has an excessively bright and excessively dark image, the bright-dark region of a current image is determined, light-emitting intensity of a light supplement lamp which is required to be adjusted and corresponds to the bright-dark region is analyzed and calculated in real time, and the light supplement lamp enables the excessively bright region to quickly reduce the light supplement intensity or enables brightness of the excessively dark region to be instantly improved according to a control signal, where the specific technical scheme is as follows:
s401: collecting image information in real time, and analyzing a light and shade area of the image information;
due to the change of the external environment, such as day, night, cloudy day, rainy day, etc., or due to occlusion, etc., the sharpness of the acquired image information is affected by the excessive brightness and darkness of the image, and if the device acquiring the image is a monocular camera, the analyzing process is completed by the monocular camera 122, and if the device acquiring the image is a binocular camera, the analyzing process is completed by the processor 123.
S402: whether a bright and dark area exists;
if an area with excessive brightness or excessive darkness is analyzed, the process proceeds to steps S4031 and S4032, and if not, the current flow is ended.
S4031: determining specific areas which are too bright and/or too dark and corresponding coordinates of the supplementary lighting lamps;
s4032: determining an ideal brightness value under the current environment;
the determination of the particular region that is too bright and/or too dark is accomplished by monocular camera 122 if the device that captures the image is a monocular camera, and by processor 123 if the device that captures the image is a binocular camera. The coordinates of the fill-in light corresponding to the over-bright and/or over-dark specific area can be determined through the determined over-bright and/or over-dark specific area and the mapping relationship between the coordinate system of the image acquisition device and the coordinate system of the fill-in light, and certainly, the coordinates of the fill-in light corresponding to the over-bright and/or over-dark specific area can also be determined through a calculation method, which is not limited herein.
Due to the difference of external environments, the ideal brightness value is different, for example, the ideal brightness value in the day, night, cloudy day and rainy day is adjusted due to the change of the environment, and the image acquisition processing control device calculates the theoretical ideal brightness value in the current environment according to the difference of the external environment brightness, so that the theoretical fill-in luminance of a clear image can be obtained.
S404: generating a corresponding control signal to the light supplementing lamp according to the coordinate and the ideal brightness value;
s405: the light supplement lamp reduces light supplement intensity of an over-bright area and/or improves light supplement intensity of an over-dark area according to the control signal.
This embodiment can make the definition greatly increased of image, promote the wide dynamic range of image by a wide margin, when having too bright too dark image in the analysis image part region, judge the light and shade region of current image, the luminous intensity of the light filling lamp that needs the adjustment that light and shade region corresponds is calculated in real time analysis, thereby the light filling lamp makes the regional quick reduction light filling intensity of crossing bright or makes the luminance in dark region improve in the twinkling of an eye according to control signal, the luminous intensity of the dynamic adjustment light filling lamp of change according to the image of light filling system, make the definition greatly increased of image, guarantee that the detail of image is all clear visible, promote the wide dynamic range of image by a wide margin.
In some embodiments, a hybrid light supplement lamp is provided, where the hybrid light supplement lamp includes a plurality of light emitting microstructures and a control chip, and the control chip is configured to control light emitting states of the plurality of light emitting microstructures to change according to a control signal.
The control chip of this embodiment can be opened alone, switch and current regulation to each independent luminous microstructure, makes each luminous microstructure constitute for but independent control's pixel in the light type, consequently can make regulation and control according to the needs of scene completely to combine required design control light filling effect, be applicable to various scenes, the application is extensive.
In some embodiments, the light emitting microstructures include a micro LED array and a discrete LED array, and the micro LED array and the discrete LED array are arranged in a regular structure.
The micro LED array can be arranged in different arrays according to the requirements of different scenes, the micro LED array is a high-density micro-sized LED array integrated on a chip, each pixel can be independently addressed and independently driven to light, the pixel level control can be realized in the application process, the control is accurate, and the discrete LEDs are used for supplementing the brightness of the edge part of the field of view of the micro LED array and ensuring the lighting degree.
In some embodiments, the micro led array is disposed in a central region of the lamp panel; the discrete LED arrays are disposed in a peripheral region of the light panel.
As shown in fig. 5-1, 5-2, and 5-3, fig. 5-1 shows a hybrid fill-in light of a micro LED pixel array and a discrete LED array, the micro LED array is arranged on the upper portion of the fill-in light, and the discrete LED array is arranged on the lower portion of the fill-in light; fig. 5-2 and 5-3 are combinations of micro LED arrays and discrete LED arrays of different lamp types, the micro LED arrays are disposed in a central region of the lamp panel, and the discrete LED arrays are disposed in a peripheral region of the lamp panel.
The central zone of mixed type light filling lamp plate is micro LED pixel array in this embodiment, and the light type is supplied for discrete LED in the peripheral region of lamp plate, and it can support the super large field of vision to this kind of overall arrangement mode, can cover different fields of vision simultaneously according to the configuration of difference, and the application is extensive, and the overall arrangement form is nimble, can make into different shapes according to the needs of difference.
Each led of the micro led pixel array of the embodiment of the invention is designed by combining a silicon substrate, a driving control circuit and a wafer together, namely, a matrix type CMOS control circuit is integrated in the silicon substrate of a chip, and the chip processed by the matrix type microstructure is combined, and all the leds are packaged into a chip with a smaller size, so that the function of independently switching on and off and current regulation of each independent light-emitting microstructure on the chip is realized.
In some embodiments, a monitoring system is provided, as shown in fig. 6, including a camera 22 and a hybrid fill-in light 21 composed of several light emitting microstructures;
the camera device 22 is configured to acquire image information of a shot object in a field of view in real time, determine a corresponding to-be-processed area in the image, which meets a preset condition, determine a real-time distance between the shot object and the hybrid light supplement lamp 21, determine a control signal corresponding to a light emitting state of the hybrid light supplement lamp 21 to be controlled according to the real-time distance and the to-be-processed area, and send the control signal to the hybrid light supplement lamp 21; the hybrid light supplement lamp 21 is the hybrid light supplement lamp 21 described in the above embodiment, and is configured to control the light emitting state of each corresponding light emitting microstructure to change according to the control signal, so as to supplement light for the image pickup apparatus.
The monitoring system in the embodiment of the invention can dynamically track the image information of the shot object collected in the visual field, and analyze the state of the image of the current focus point of the shot object in real time, wherein the state can be a human eye region determined by the image information or a light and dark region determined by the image information, the monitoring system in the embodiment of the invention dynamically adjusts the light-emitting state of the light-filling lamp according to the state information of the focus point of the real-time obtained image, for example, when a pedestrian enters the collection region in the monitoring process, the light source corresponding to the human eye part is dynamically adjusted according to the distance between the pedestrian and the mixed light-filling lamp 21, so as to prevent glare from causing visual obstruction to the pedestrian, and realize the pixel level control, only the light source of the human eye part is closed, and the light sources of other parts of the human face are normally opened, therefore, the human face can be shot clearly, but no visual interference is caused to the pedestrian, and the glare-free high-definition photographing is realized.
The monitoring system of the embodiment of the present invention may also adjust the light emitting microstructure of the hybrid fill-in light 21 according to the definition of the image, for example, reduce the fill-in light intensity of an over-bright area and/or improve the fill-in light intensity of an over-dark area to increase the definition of the image, so that the acquired image of the object to be photographed reaches an ideal state, and the definition of the image is improved.
In some embodiments, a scheme for projecting a symbol and/or an identifier is further provided, as shown in fig. 7, the object to be photographed is a pedestrian and/or a vehicle, the area to be processed is a ground area around the pedestrian and/or the vehicle determined by analyzing the image information, and the fill light controls the brightness of the light source of each light-emitting microstructure corresponding to the ground area according to a control signal determined by a preset pattern to project the pattern.
When the pedestrian or the vehicle appears in the current field of vision, an indicative symbol or mark is projected in front of the vehicle or around the pedestrian, other passing vehicles or pedestrians are reminded to avoid, or indicative information is provided for the pedestrian and the vehicle.
The method comprises the following specific steps:
s701: acquiring and analyzing image information in real time, and judging whether pedestrians and/or vehicles are detected; if yes, executing step S702, otherwise, ending the current flow;
s702: acquiring a real-time distance between a person/vehicle and a light supplement lamp;
s703: acquiring/calculating coordinates of a light supplement lamp corresponding to a person/vehicle;
s704: and generating a control signal to the light supplement lamp according to the coordinates of the light supplement lamp, and projecting symbols and reminding information to the front road and/or the periphery of people/vehicles.
In the embodiment of the present invention, a person skilled in the art may implement the process by combining the previous example and the specific steps of the embodiment, and therefore, each step is not described in detail herein.
The embodiment can project a designated symbol according to the requirement of the environment or sending a task instruction, for example, in rainy days, when a vehicle is detected, an indication mark for prompting the speed limit of the vehicle can be projected in front of the vehicle, the embodiment can also be applied to pedestrians, for example, when the pedestrian is detected to pass through, a zebra crossing is projected to a front road to indicate that the pedestrian is courtesy, and when the vehicle is detected to pass through, a display mark is projected around the vehicle to prompt other pedestrians and carefully pass through the vehicle.
The corresponding to-be-processed area is a ground area around a person and/or a vehicle determined by analyzing the image information, when the fact that the person and/or the vehicle pass through is analyzed, different symbols or information can be projected according to different preset patterns set under different environments and different requirements to remind or inform people, vehicles and the like passing through the collection visual field, different symbols can be set according to different requirements, and various requirements can be met.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (13)
1. A light supplement system, comprising:
a light supplement lamp and an image acquisition processing control device which are composed of a plurality of light emitting microstructures;
the image acquisition processing control device is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets a preset condition in an image, determining a real-time distance between the shot object and the light supplementing lamp, determining the light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp;
and the light supplement lamp is used for controlling the light emitting state of each corresponding light emitting microstructure to change according to the control signal.
2. The light supplement system according to claim 1, wherein the determining the light emitting state of each light emitting microstructure according to the real-time distance and the region to be processed specifically comprises: and determining the light emitting state of each light emitting microstructure in the to-be-processed area at the real-time distance according to the predetermined mapping relation between the shooting coordinate system and the light supplement lamp coordinate system at different distances.
3. The light supplement system according to claim 1, wherein the corresponding to-be-processed area is a human eye area determined by analyzing the image information;
and the light supplement lamp controls the light sources of the light emitting microstructures corresponding to the human eye area to be turned off according to the control signal.
4. The light supplement system according to claim 1, wherein the corresponding to-be-processed region is a light and dark region determined by analyzing the image information;
and the light supplement lamp controls the light sources of the light and dark regions corresponding to the light-emitting microstructures according to the control signal to reduce the light supplement intensity of the over-bright region and/or improve the light supplement intensity of the over-dark region.
5. The light supplement system according to claim 1, wherein the corresponding to-be-processed area is a ground area around a person and/or a vehicle determined by analyzing the image information;
the light supplement lamp controls the brightness of the light source of each light-emitting microstructure corresponding to the ground area according to the control signal determined by the preset pattern, and projects the pattern.
6. The light supplement system of claim 1, wherein the image acquisition processing control device comprises: a distance measuring means and a monocular camera;
the distance measuring component is used for measuring the real-time distance between the shot object and the light supplementing lamp and sending real-time distance information to the monocular camera;
the monocular camera is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets preset conditions in an image, determining the light emitting state of each light emitting microstructure according to the received real-time distance information and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp.
7. The light supplement system of claim 6, wherein the distance measurement component is a distance measurement sensor.
8. The light supplement system of claim 1, wherein the image acquisition processing control device comprises: a binocular sensor and a processor;
the binocular sensor is used for acquiring image information of a shot object in a visual field in real time and sending the image information to the processor;
the processor is used for receiving the image information in the binocular sensor, determining a corresponding to-be-processed area which meets preset conditions in the image, determining a real-time distance between the shot object and the light supplementing lamp, determining the light emitting state of each light emitting microstructure according to the real-time distance and the to-be-processed area, generating a control signal for controlling the light emitting state of each light emitting microstructure to change, and sending the control signal to the light supplementing lamp.
9. The hybrid light supplement lamp is characterized by comprising a plurality of light emitting microstructures and a control chip, wherein the light emitting microstructures are arranged on a lamp panel, and the control chip is used for controlling the light emitting states of the light emitting microstructures to change according to a control signal.
10. The hybrid light supplement lamp according to claim 9, wherein the light emitting microstructures comprise a micro LED array and a discrete LED array, and the micro LED array and the discrete LED array are arranged in a regular structure.
11. The hybrid fill-in light lamp of claim 10, wherein the micro led array is disposed in a central region of the lamp panel; the discrete LED arrays are disposed in a peripheral region of the light panel.
12. A monitoring system is characterized by comprising a camera device and a mixed type light supplement lamp consisting of a plurality of light emitting microstructures;
the camera device is used for acquiring image information of a shot object in a visual field in real time, determining a corresponding to-be-processed area which meets a preset condition in an image, determining a real-time distance between the shot object and the hybrid light supplementing lamp, determining a control signal corresponding to a light emitting state of the hybrid light supplementing lamp to be controlled according to the real-time distance and the to-be-processed area, and sending the control signal to the hybrid light supplementing lamp;
the hybrid light supplement lamp according to any one of claims 9 to 11, configured to control a light emitting state of each corresponding light emitting microstructure to change according to the control signal, so as to supplement light for the image capturing device.
13. An intelligent camera, characterized in that the intelligent camera has a supplementary lighting system according to any one of claims 1 to 8.
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