Video processing method, device, computer equipment and storage medium

A video processing and video frame technology, which is applied in the field of video processing, can solve problems such as video brightness or color difference, and affect the mapping effect, so as to avoid brightness or color difference, improve the mapping effect, and reduce the amount of calculation.

Active Publication Date: 2021-08-17
TENCENT TECH (SHENZHEN) CO LTD
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AI Technical Summary

Problems solved by technology

Since the content of the video is usually rich, different signals are expressed from the spatial domain to the time domain, and the method of mapping using the mapping curve may cause brightness or color difference in the video obtained after mapping, which will affect the mapping effect.

Method used

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  • Video processing method, device, computer equipment and storage medium
  • Video processing method, device, computer equipment and storage medium
  • Video processing method, device, computer equipment and storage medium

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0043] Cloud storage (cloud storage) is a new concept extended and developed from the concept of cloud computing. Distributed cloud storage system (hereinafter referred to as storage system) refers to functions such as cluster application, grid technology and distributed storage file system. A storage system that integrates a large number of different types of storage devices (storage devices are also called storage nodes) in the network to work together through application software or application interfaces to jointly provide data storage and service access functions.

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Abstract

The present application relates to a video processing method, apparatus, computer equipment and storage medium. The method includes: extracting a video frame from a video to be processed; down-sampling the video frame to obtain a corresponding low-resolution image; extracting a first global image feature and a first local image from the low-resolution image feature; use the guide map corresponding to the video frame to upsample the image feature tensor formed by splicing the first global image feature and the first local image feature to obtain inverse tone mapping parameters; based on the inverse Tone-mapping parameters and corresponding video frames generate high dynamic range target video frames. Using this method can avoid the problem of brightness or color difference when the video is converted from low dynamic range to high dynamic range.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular to a video processing method, device, computer equipment and storage medium. Background technique [0002] With the continuous development of video processing technology, users can conveniently watch various videos through smart terminals. The videos watched by users are usually stored in a storage system, such as a distributed cloud storage system, and in the storage system, many videos are composed of low dynamic range images, and these low dynamic range images The resulting video viewing effect is relatively poor. [0003] In a common solution, the low dynamic range pixel information is mapped to the high dynamic range space through a mapping curve, so that a high dynamic range video can be obtained. Since the content of the video is usually rich, different signals are expressed from the spatial domain to the time domain, and the method of mapping using the m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/234H04N21/2343H04N21/44H04N21/4402G06N3/04G06N3/08G06N20/00G06K9/00
CPCH04N21/234H04N21/234363H04N21/44H04N21/440263G06N3/084G06N20/00G06V20/41G06N3/045
Inventor 刘孟洋徐敘远
Owner TENCENT TECH (SHENZHEN) CO LTD
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