Video signal processing method and device and storage medium

A video signal processing and video signal technology, applied in the field of video processing, can solve problems such as video format adaptation, and achieve the effect of short processing time and less real-time calculation

Pending Publication Date: 2021-10-08
中央广播电视总台 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present application provide a video signal processing method, device, and storage medium to solve the problem of video format adaptation in real-time scenarios

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  • Video signal processing method and device and storage medium
  • Video signal processing method and device and storage medium
  • Video signal processing method and device and storage medium

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Embodiment Construction

[0013] Exemplary embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, rather than exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0014] When the source video format input in real time does not match the target format supported by the display device, or does not match the target format selected by the user to play, it is necessary to perform real-time transcoding adaptation of the source video format and the target format. Therefore, the embodiment of the present application proposes a video signal processing method to solve the problem of adapting the source video format and the target format in a real-time processing scenario. figure 1 shows a flow chart of the...

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Abstract

The embodiment of the invention provides a video signal processing method and device and a storage medium, and the method comprises the steps: carrying out the preset processing of a to-be-processed video signal in an original format, and obtaining a first linear RGB signal; obtaining a target pixel value corresponding to a pixel value of each pixel point in the first linear RGB signal according to a preset mapping table, and obtaining a second linear RGB signal according to the target pixel value, wherein the mapping table comprises a mapping relation between the pixel value based on the original format and the pixel value based on the target format; and performing inverse processing opposite to the preset processing on the second linear RGB signal to obtain a target video signal in a target format. According to the technical scheme, the mapping table is created in advance, in the process of converting the to-be-processed video signal from the original format to the target format, the real-time calculation amount is small, the processing time of the video signal is short, and the real-time conversion effect can be achieved.

Description

technical field [0001] The present application relates to the technical field of video processing, and in particular, to a video signal processing method, device, and storage medium. Background technique [0002] With the development of ultra-high-definition video, more and more video content in HDR (High-Dynamic Range, high dynamic range) format is presented to viewers. However, since HDR has a variety of standard formats, such as HDR10, Dolby Vision, Hybrid Log-Gamma (HLG), Technicolor HDR, Perceptual Quantizer (PQ), HDR10+ and other standard formats, and the formats that display devices can support are also diverse , so when the display device does not match the video format of the input source video, it needs to be adapted by pre-processing or post-processing in the content production end or player, or when the user selects a different format for video playback, It is also necessary to adapt the video format of the source video to user needs. The current processing met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01H04N21/2343H04N21/4402
CPCH04N7/01H04N21/234309H04N21/440218
Inventor 徐进齐翼郭运亮周骋宋承岩
Owner 中央广播电视总台
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