A video coding processing method, device, equipment and storage medium

By using the domain image block and pixel histogram in the video frame to determine the subtitle area and selecting the appropriate encoding mode, the problem of low encoding quality in subtitle area in video encoding is solved, and the encoding quality and efficiency are improved.

CN117336548BActive Publication Date: 2025-03-18BEIJING BAIDU NETCOM SCI & TECH CO LTD
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Patent Information

Application Number
CN202311337438.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-16
Publication Date
2025-03-18
Estimated Expiration
2043-10-16

AI Technical Summary

Technical Problem

During the video encoding process, the encoding quality of the subtitle area is difficult to improve, which affects the visual experience of the video.

Method used

Select an appropriate encoding mode by using the domain image block in a video frame to determine whether the target image block belongs to the candidate subtitle area and generate a pixel histogram, and determine the area type in combination with the pixel variance mean and the histogram.

Benefits of technology

It improves the encoding quality and screening accuracy of the subtitle area, takes into account the encoding efficiency and subjective quality of the video frame, and avoids waste of code rate.

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Abstract

The present disclosure provides a video coding processing method, device, equipment and storage medium, which relates to the field of image processing technology. The video coding processing method includes: determining whether a target image block belongs to a candidate subtitle area according to a domain image block of the target image block in a video frame; generating a pixel histogram of the target image block when the target image block belongs to the candidate subtitle area; determining the area type to which the target image block belongs according to the pixel histogram of the target image block; wherein the area type is a subtitle area or a non-subtitle area; and selecting a target coding mode for the target image block according to the area type to which the target image block belongs. The above technical solution can improve the encoding quality of the video.
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