Depth image filtering method, apparatus, computer equipment and storage medium
A depth image and image technology, applied in the field of image processing, can solve problems such as jaggedness, insufficient edge fit, and decreased edge accuracy, to achieve good fit, eliminate aliasing, and improve edge accuracy
Active Publication Date: 2022-07-26
MEGVII BEIJINGTECH CO LTD
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[0003] However, after directly upsampling the small-sized depth image, there will be serious aliasing phenomenon, resulting in a decrease in edge accuracy, so that the main body edge of the depth image does not fit well with the main body edge of the color image or grayscale image.
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[0047] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0048] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various conditional relationships, but these conditional relationships are not limited by these terms. These terms are only used to distinguish one conditional relationship from another.
[0049] It should be noted that in this application, the depth image can be guided filtering based on the RGB information of the image, and the depth image can also be guided filtering based on the grayscale information of the image. The two image information gui...
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The present application relates to a depth image filtering method, apparatus, computer equipment and storage medium. Including: obtaining the information of the first depth image of the current image and the information of the first image; according to the difference between the pixel value at the target position in the first image and the pixel value in the preset neighborhood range of the target position, from obtaining a second pixel value set from the first pixel value set; obtaining a second depth value set from the first depth value set according to the second pixel value set, the second correspondence, the third correspondence and the first correspondence; Depth value set, filtering the first depth image to obtain the second depth image. Therefore, the aliasing phenomenon existing in the filtered image can be largely eliminated, the edge accuracy can be improved, and the main body edge of the depth image can fit better with the main body edge of the color image or grayscale image.
Description
technical field [0001] The present application relates to the technical field of image processing, and in particular, to a depth image filtering method, apparatus, computer equipment and storage medium. Background technique [0002] With the continuous development of imaging technology and image processing technology, the application of depth image is more and more extensive. The imaging technology of depth image is quite different from that of ordinary image. In the process of binocular depth image calculation, due to the limitation of time or processor computing power, the parallax image is usually calculated and processed on a smaller image. , so as to obtain the depth image. [0003] However, after directly up-sampling a small-size depth image, serious aliasing will appear, resulting in a decrease in edge accuracy, and the main edge of the depth image and the main edge of the color image or grayscale image are not well fitted. SUMMARY OF THE INVENTION [0004] Based ...
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IPC IPC(8): G06T5/10
CPCG06T5/10
Inventor 许姜严
Owner MEGVII BEIJINGTECH CO LTD