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Panoramic image color correction method for automobile data recorder

A driving recorder and color correction technology, which is applied in the field of panoramic image color correction, can solve problems such as unfavorable driving recorder use, picture color cannot be guaranteed to be the same, high-resolution image color difference, etc., to avoid color difference traces, eliminate color differences, good effect effect

Active Publication Date: 2018-11-16
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to differences in scene brightness, chromatic aberration in lenses, and different exposures, the colors of the collected pictures cannot be guaranteed to be the same. The high-resolution images obtained after using such image stitching will have obvious chromatic aberrations, which is not conducive to the driving recorder. use

Method used

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  • Panoramic image color correction method for automobile data recorder
  • Panoramic image color correction method for automobile data recorder
  • Panoramic image color correction method for automobile data recorder

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Embodiment 1

[0063] The panoramic image color correction method of the present invention is applied to the binocular driving recorder, which can solve the technical problem of the difference in the overall color gamut of the image after the image is spliced ​​in the prior art, and ensure that the final image can be consistent in color after the image is spliced. There will be no noticeable difference, which is convenient for subsequent use.

[0064] see figure 2 , when the car is running, the driving recorder works through the camera to collect images, and record and store them in the device. In this embodiment, the driving recorder camera includes two cameras. When shooting panoramic images, the binocular camera can collect different angles position, and inside the binocular camera, multiple pictures at different angles are sent to the splicing module of the microprocessor for splicing processing, and then the color correction module inside the microprocessor performs color correction pr...

specific Embodiment

[0071] A specific embodiment of the present invention: the resolution of the collected panorama image is 1780*720, and when cutting, it is necessary to keep 4% of the overlapping area when the template is moved, and to keep 4% of the overlapping area when the template is moved first left then right, first up and then down area, the upper and lower templates also retain 4% of the overlapping area, and the required template resolution is 368*368, so the cropped image template is 368*368.

[0072] In step 2, the overlapping area N of the template image M and the image to be corrected is judged in the Cr and Cd dual channels to determine whether the Cr and Cd values ​​need to be corrected.

[0073] The template image M obtained in step 1 is matched with the overlapping area N of the image to be corrected, and whether the overlapping area needs color correction is determined through the correlation judgment between the template image and the overlapping area N of the image to be cor...

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Abstract

The invention discloses a panoramic image color correction method for an automobile data recorder, and the method comprises the following steps: obtaining a preset number of spliced image frames, andobtaining a template image according to the spliced image frames; superposing the template image with a to-be-corrected spliced image to obtain a superposed region; carrying out the discrimination ofthe Cr and Cd correlation degree of the obtained superposed region and the template image to determine whether to correct the Cr and Cd values of the superposed region till the color correction of allregions of the to-be-corrected spliced image is completed. The method provided by the invention can achieve the adjustment of the color gamut difference of the spliced image, can enable the color ofthe spliced image to be consistent, and facilitates the subsequent application of the spliced image in the automobile data recorder.

Description

technical field [0001] The invention belongs to the technical field of image splicing color correction, and in particular relates to a panoramic image color correction method for driving recorders. Background technique [0002] Image acquisition equipment and photo sharing are becoming more and more popular. Images can be easily collected through devices such as SLR cameras and smart phones. Large amounts of image data can be easily downloaded from social networks or public data platforms. The large amount of available image data makes some vision applications possible, such as image Rendering and virtual navigation, etc. However, in many cases, due to differences in atmospheric lighting, exposure time, and camera response, images of the same scene will show obvious inconsistencies in hue. This luminosity difference will affect the visual effect of multiple images based on rendering tasks, such as in Application in driving recorder. [0003] At present, in the field of pan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64H04N9/04H04N5/262H04N5/232G06T3/40
CPCH04N5/262H04N9/64G06T3/4038H04N23/80H04N23/10
Inventor 韩毅刘新亮宋晓妍张锦思
Owner CHANGAN UNIV
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