CN114584702A - Method and system for shooting visible light and thermal imaging overlay - Google Patents
Method and system for shooting visible light and thermal imaging overlay Download PDFInfo
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- 238000004590 computer program Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
- H04N23/951—Computational photography systems, e.g. light-field imaging systems by using two or more images to influence resolution, frame rate or aspect ratio
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
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- G06F18/25—Fusion techniques
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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Abstract
The invention relates to a method and a system for shooting a visible light and thermal imaging overlay, belonging to the technical field of electronics, wherein the method comprises the following steps: displaying a shooting interface of electronic equipment, and acquiring a shooting interface image comprising a thermal imaging image and a visible light image; adjusting the shooting interface image to enable the thermal imaging image to be overlapped with the visible light image; after receiving shooting operation, responding to the shooting, acquiring the thermal imaging image and the visible light image, and processing the thermal imaging image and the visible light image to generate an overlay; and carrying out image recognition on the superposed images to obtain the temperature of the corresponding point. The method of the invention can obtain the temperature corresponding to the identified object, and the intelligent identification range is expanded.
Description
The application is a divisional application of a patent application named 'a method, a system and electronic equipment for shooting a visible light and thermal imaging superposition map', the application date of the original application is 09 and 20 days in 2019, and the application number is 201910894436.2.
Technical Field
The invention relates to the technical field of electronics, in particular to a method and a system for shooting a visible light and thermal imaging superposition map.
Background
Thermography, also known as infrared Thermography (TIS). The infrared thermal imaging technology can prevent human eyes from directly seeing the surface temperature distribution of the target, and the surface temperature distribution of the target can be changed into a thermal image which represents the surface temperature distribution of the target and can be seen by human eyes.
The infrared image and the visible light image are respectively obtained by an infrared imaging sensor and a visible light imaging sensor, and the two sensors have different working principles and different performances. The infrared image can better reflect the hot target characteristics of the image, but is insensitive to the scene brightness change characteristics, and the image definition is lower; the visible light image can better reflect the scene details of the target and has higher definition. The infrared and visible light image fusion can effectively integrate the infrared image target characteristic information and the visible light scene detail information to obtain a more comprehensive fusion image. Such technologies are now widely used in the fields of computer vision, military, remote sensing, and medicine.
In order to directly shoot an overlay of visible light and thermal imaging and directly obtain the temperature of each point, the invention provides a method and a system for shooting the overlay of visible light and thermal imaging.
Disclosure of Invention
The invention solves the technical problem of providing a method and a system for shooting a visible light and thermal imaging superposition map. The method and the system for shooting the visible light and thermal imaging superposition map can obtain the temperature corresponding to the identified object, and expand the intelligent identification range.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method of capturing a visible and thermal imaging overlay, the method comprising:
displaying a shooting interface of the electronic equipment;
acquiring an image of the shooting interface, wherein the image of the shooting interface comprises a thermal imaging image and a visible light image, and the thermal imaging image is not overlapped with the visible light image;
adjusting the image of the shooting interface to make the thermal imaging image coincide with the visible light image, specifically including: adjusting the resolution of the thermal imaging image to make the resolution of the thermal imaging image similar to the resolution of the visible light image; adjusting the image according to the offset of the thermal imaging image and the visible light image, so that the thermal imaging image and the visible light image are superposed;
after receiving shooting operation, responding to the shooting to acquire the thermal imaging image and the visible light image;
processing the thermal imaging image and the visible light image to generate an overlay;
carrying out image recognition on the superposed images to obtain the temperature of the corresponding point;
the image recognition of the overlay image specifically includes: dividing the overlay image into a target image and a background image; the background image is a thermal imaging image and a visible light image of the equipment which is stored by taking a picture, and an equipment set is generated after the identification, wherein the equipment set comprises: device coordinates, type recognition rate and temperature; the target graph is as follows: drawing the identified equipment result on a background picture through a drawing function to obtain a visible light image and a thermal imaging image containing the equipment identification result;
the acquiring of the corresponding point temperature specifically includes:
restoring the equipment coordinate according to the offset to obtain the coordinate of the equipment on the thermal imaging image;
searching the temperature of the corresponding point in the temperature matrix according to the coordinate on the thermal imaging image;
the temperature of the corresponding point is the temperature of the corresponding coordinate point of the device on the visible light image.
Optionally, the electronic device includes two cameras: visible light camera and thermal imaging camera.
Optionally, the adjusting the image according to the offset of the two images, so that the overlapping of the two images specifically includes: judging the offset of the two images, and adjusting the offset according to the hardware positions of the two cameras on the electronic equipment to enable the two images to be overlapped.
Optionally, the processing the two images to generate the overlay specifically includes: and cropping and filling the thermal imaging image according to the offset, and overlapping the thermal imaging image and the visible light image to generate an overlapping image.
To achieve the above object, the present invention also provides a system for taking a superposition of visible light and thermal images, the system comprising:
the display module is used for displaying a shooting interface of the electronic equipment;
the image acquisition module is used for acquiring an image of the shooting interface, wherein the image of the shooting interface comprises a thermal imaging image and a visible light image, and the thermal imaging image is not overlapped with the visible light image;
the adjusting module is configured to adjust the shooting interface image to make the thermal imaging image coincide with the visible light image, and specifically includes: adjusting the resolution of the thermal imaging image to make the resolution of the thermal imaging image similar to the resolution of the visible light image; adjusting the image according to the offset of the thermal imaging image and the visible light image, so that the thermal imaging image and the visible light image are overlapped;
a capture module to acquire the thermal imaging image and the visible light image in response to the capturing;
the processing module is used for processing the thermal imaging image and the visible light image to generate an overlay image;
the temperature generation module is used for carrying out image recognition on the overlapping image and acquiring the temperature of the corresponding point;
the image recognition of the overlay image specifically includes: dividing the overlay image into a target image and a background image; the background image is a thermal imaging image and a visible light image of the device which are stored by taking pictures, and a device set is generated after identification, and the device set comprises: device coordinates, type recognition rate and temperature; the target graph is as follows: drawing the identified equipment result on a background picture through a drawing function to obtain a visible light image and a thermal imaging image containing the equipment identification result;
the acquiring of the corresponding point temperature specifically includes:
restoring the equipment coordinate according to the offset to obtain the coordinate of the equipment on the thermal imaging image;
searching the temperature of the corresponding point in the temperature matrix according to the coordinate on the thermal imaging image;
the temperature of the corresponding point is the temperature of the corresponding coordinate point of the device on the visible light image.
Compared with the prior art, the invention has the beneficial effects that: the invention combines the image recognition technology and the thermal imaging temperature recognition technology. The temperature corresponding to the identified object is obtained by shooting the visible light and thermal imaging superposed images, and the intelligent identification range is expanded. Specifically, the lens hardware position is adjusted first, so that two images are superposed, then shooting is performed, then the thermal imaging is cut and filled, an overlay is obtained, and the image processing is performed on the overlay.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic flow chart of a method of capturing an overlay of visible light and thermal images in accordance with the present invention;
FIG. 2 is a block diagram of a system for taking a visible and thermal image overlay in accordance with the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The figures are simplified schematic diagrams which illustrate the basic flow diagram of the invention in a schematic manner and therefore show only the flow charts relevant to the invention.
s1: displaying a shooting interface of the electronic equipment;
s2: acquiring an image of the shooting interface, wherein the image comprises a thermal imaging image and a visible light image;
s3: adjusting the image of the shooting interface to enable the two images to be overlapped;
s4: after receiving shooting operation, responding to the shooting to obtain two images;
s5: processing the two images to generate an overlay image;
s6: and carrying out image recognition on the overlapped image and acquiring the temperature of the corresponding point.
Step S1: displaying a shooting interface of the electronic equipment, wherein the shooting interface displays two images, and the two images pass through two cameras in the electronic equipment: the visible light camera and the thermal imaging camera.
Step S2: and acquiring an image of the shooting interface, wherein the image comprises a thermal imaging image and a visible light image. The two images of the first display interface are not coincident and require subsequent adjustment.
Step S3: adjusting the image of the shooting interface to enable the two images to be overlapped, wherein the adjusting method specifically comprises the following steps: firstly, adjusting the resolution of a thermal imaging image to be similar to that of a visible light image; and then, adjusting the images according to the offset of the two images to ensure that the two images are superposed.
Wherein, the image adjustment is performed according to the offset of the two images, so that the superposition of the two images is specifically as follows: judging the offset of the two images, and adjusting the offset according to the hardware positions of the two cameras on the electronic equipment to enable the two images to be overlapped. Since the thermal imaging camera is located to the left of the visible light camera, the thermal imaging image is acquired to the left relative to the visible light image, and the electronic device is provided with an offset button to deflect the thermal imaging image according to an offset, such as-25, -80 lateral-longitudinal difference. The visible light and the thermographic image of the display interface are thus superimposed.
Step S4: and after receiving the shooting operation, responding to the shooting to acquire two images, and after receiving a shooting instruction, acquiring the two images.
Step S5: processing the two images to generate an overlay image, wherein the processing the two images to generate the overlay image specifically comprises: and cropping and filling the thermal imaging image according to the offset, and overlapping the thermal imaging image and the visible light image to generate an overlapping image. When the photographing key is clicked, the thermal imaging image is deflected and cannot completely cover the photographing window, so that the thermal imaging image is cut and filled, the resolution of the thermal imaging image is consistent with that of the visible light image, and finally the two images are stored and an overlapped image is generated.
Step S6: performing image recognition on the overlay image and acquiring the corresponding point temperature, wherein the image processing is specifically: the overlay image is divided into a target image and a background image. The specific steps for acquiring the temperature of the corresponding point are as follows: restoring the equipment coordinates according to the offset; searching the temperature of one point in the temperature matrix according to the thermal imaging image coordinate; the point temperature is the temperature of the corresponding coordinate point of the device. Wherein the background image is a device thermal imaging picture and a visible light picture which are stored by taking pictures, and a device set is generated after the device set is identified, and the device set comprises: coordinates, type recognition rate, temperature, etc. The target graph is as follows: and drawing the identified equipment result on a background picture through a drawing function to obtain a visible light and thermal imaging picture with the equipment identification result, and meanwhile, the visible light and thermal imaging picture can be used as an identification result picture for submitting a report.
Because the temperature matrix is stored according to the thermal imaging image, when the thermal imaging image is taken and sent for identification, the thermal imaging image is subjected to offset processing to ensure that the visible light and the thermal imaging coordinate correspond to each other. Therefore, after the visible light coordinate of the equipment is identified, the coordinate of the equipment needs to be restored according to the offset transmitted by the APP, so that the coordinate of the equipment on the thermal imaging picture is obtained, and finally, the corresponding temperature is searched for according to the temperature matrix of the coordinate on the thermal imaging picture, so that the temperature of the equipment on the visible light picture can be obtained.
As shown in fig. 2, the present invention provides a system for taking a visible light and thermal imaging overlay, comprising: the device comprises a display module 1, an image acquisition module 2, an adjustment module 3, a shooting module 4, a processing module 5 and a temperature generation module 6.
The display module 1 is used for displaying a shooting interface of the electronic equipment;
the image acquisition module 2 is configured to acquire an image of the shooting interface, where the image of the shooting interface includes a thermal imaging image and a visible light image, and the thermal imaging image is not overlapped with the visible light image;
the adjusting module 3 is configured to adjust the shooting interface image to make the thermal imaging image coincide with the visible light image, and specifically includes: adjusting the resolution of the thermal imaging image to make the resolution of the thermal imaging image similar to the resolution of the visible light image; and adjusting the image according to the offset of the thermal imaging image and the visible light image, so that the thermal imaging image and the visible light image are overlapped.
The shooting module 4 is configured to obtain the thermal imaging image and the visible light image in response to the shooting.
The processing module 5 is used for processing the thermal imaging image and the visible light image to generate an overlay image; the specific steps of processing the two images to generate the overlay image are as follows: and cropping and filling the thermal imaging image according to the offset, and overlapping the thermal imaging image and the visible light image to generate an overlapping image.
And the temperature generation module 6 is used for carrying out image recognition on the overlapping image and acquiring the temperature of the corresponding point.
Performing image recognition on the overlay image, specifically comprising: dividing the overlay image into a target image and a background image; the background picture is a thermal imaging image and a visible light image of the equipment which is stored by taking a picture, the visible light image is transmitted to an intelligent identification model corresponding to the server for identification, and an equipment set is generated after identification, wherein the equipment set comprises: device coordinates, type recognition rate and temperature; the target graph is as follows: and drawing the identified equipment result on a background picture through a drawing function to obtain a visible light image and a thermal imaging image containing the equipment identification result.
Acquiring the temperature of the corresponding point, specifically comprising:
restoring the equipment coordinate according to the offset to obtain the coordinate of the equipment on the thermal imaging image;
searching the temperature of the corresponding point in the temperature matrix according to the coordinate on the thermal imaging image;
the temperature of the corresponding point is the temperature of the corresponding coordinate point of the device on the visible light image.
The present invention also provides a computer storage medium characterized by computer instructions that, when run on an electronic device, cause the electronic device to perform the method of capturing a visible and thermal imaging overlay.
The invention also provides a computer program product, which is characterized in that it causes a computer to carry out the method of taking a visible and thermographic overlay image when the computer program product is run on the computer.
The above detailed description is specific to possible embodiments of the present invention, and the above embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included in the present claims.
Claims (5)
1. A method of capturing a visible and thermographic overlay, the method comprising:
displaying a shooting interface of the electronic equipment;
acquiring an image of the shooting interface, wherein the image of the shooting interface comprises a thermal imaging image and a visible light image, and the thermal imaging image is not overlapped with the visible light image;
adjusting the image of the shooting interface to make the thermal imaging image coincide with the visible light image, specifically including: adjusting the resolution of the thermographic image to make the resolution of the thermographic image similar to the resolution of the visible light image; adjusting the image according to the offset of the thermal imaging image and the visible light image, so that the thermal imaging image and the visible light image are overlapped;
after receiving shooting operation, responding to the shooting to acquire the thermal imaging image and the visible light image;
processing the thermal imaging image and the visible light image to generate an overlay;
carrying out image recognition on the superposed images to obtain the temperature of the corresponding point;
the image recognition of the overlay image specifically includes: dividing the overlay image into a target image and a background image; the background image is a thermal imaging image and a visible light image of the equipment which is stored by taking a picture, and an equipment set is generated after the identification, wherein the equipment set comprises: device coordinates, type recognition rate and temperature; the target graph is as follows: drawing the identified equipment result on a background picture through a drawing function to obtain a visible light image and a thermal imaging image containing the equipment identification result;
the acquiring of the corresponding point temperature specifically includes:
restoring the equipment coordinate according to the offset to obtain the coordinate of the equipment on the thermal imaging image;
searching the temperature of the corresponding point in the temperature matrix according to the coordinate on the thermal imaging image;
the temperature of the corresponding point is the temperature of the corresponding coordinate point of the device on the visible light image.
2. The method of claim 1, wherein the electronic device comprises two cameras: visible light camera and thermal imaging camera.
3. The method for capturing the overlay of visible light and thermal imaging according to claim 1, wherein the adjusting the images according to the offset of the two images, so that the two images are overlapped specifically comprises: judging the offset of the two images, and adjusting the offset according to the hardware positions of the two cameras on the electronic equipment to enable the two images to be overlapped.
4. The method for capturing the overlay image of visible light and thermal imaging according to claim 1, wherein the processing the two images to generate the overlay image specifically comprises: and cropping and filling the thermal imaging image according to the offset, and overlapping the thermal imaging image and the visible light image to generate an overlapping image.
5. A system for capturing a superposition of visible light and thermal images, the system comprising:
the display module is used for displaying a shooting interface of the electronic equipment;
the image acquisition module is used for acquiring an image of the shooting interface, wherein the image of the shooting interface comprises a thermal imaging image and a visible light image, and the thermal imaging image is not overlapped with the visible light image;
the adjusting module is configured to adjust the shooting interface image to make the thermal imaging image coincide with the visible light image, and specifically includes: adjusting the resolution of the thermographic image to make the resolution of the thermographic image similar to the resolution of the visible light image; adjusting the image according to the offset of the thermal imaging image and the visible light image, so that the thermal imaging image and the visible light image are overlapped;
a capture module to acquire the thermal imaging image and the visible light image in response to the capturing;
the processing module is used for processing the thermal imaging image and the visible light image to generate an overlay image;
the temperature generation module is used for carrying out image recognition on the overlapping image to obtain the temperature of the corresponding point;
the image recognition of the overlay image specifically includes: dividing the overlay image into a target image and a background image; the background image is a thermal imaging image and a visible light image of the equipment which is stored by taking a picture, and an equipment set is generated after the identification, wherein the equipment set comprises: device coordinates, type recognition rate and temperature; the target graph is as follows: drawing the identified equipment result on a background picture through a drawing function to obtain a visible light image and a thermal imaging image containing the equipment identification result;
the obtaining of the corresponding point temperature specifically includes:
restoring the equipment coordinate according to the offset to obtain the coordinate of the equipment on the thermal imaging image;
searching the temperature of the corresponding point in the temperature matrix according to the coordinate on the thermal imaging image;
the temperature of the corresponding point is the temperature of the corresponding coordinate point of the device on the visible light image.
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| CN202210087340.7A CN114584702A (en) | 2019-09-20 | 2019-09-20 | Method and system for shooting visible light and thermal imaging overlay |
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| CN201910894436.2A CN110572576A (en) | 2019-09-20 | 2019-09-20 | Method and system for shooting visible light and thermal imaging overlay image and electronic equipment |
| CN202210087340.7A CN114584702A (en) | 2019-09-20 | 2019-09-20 | Method and system for shooting visible light and thermal imaging overlay |
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| CN112577603A (en) * | 2020-10-09 | 2021-03-30 | 国网浙江宁波市奉化区供电有限公司 | Switch cabinet real-time monitoring method and system based on cable connector and ambient temperature thereof |
| CN112414552B (en) * | 2020-11-24 | 2022-04-15 | 西南交通大学 | Body temperature detection device for elevator and body temperature calculation method thereof |
| CN115965912B (en) * | 2022-12-28 | 2024-06-25 | 众芯汉创（北京）科技有限公司 | Distribution network equipment state monitoring system and method based on image recognition |
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| CN101067710A (en) * | 2006-01-20 | 2007-11-07 | 红外线解决方案公司 | Camera with visible light and infrared image blending |
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| CN104364800A (en) * | 2012-03-30 | 2015-02-18 | 前视红外系统股份公司 | Facilitating analysis and interpretation of associated visible light and infrared (IR) image information |
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