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Video quality evaluation method and device

A technology of video quality and evaluation method, applied in the field of video, can solve the problems of low accuracy rate of video quality evaluation, achieve the effect of accurate video quality evaluation and improve selection quality

Active Publication Date: 2021-06-04
BEIJING SANKUAI ONLINE TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] However, when shooting a short video, the movement of the user's camera and the movement of objects in the video scene often occur, so that the equal interval sampling may collect blurred key frames in the process of motion, resulting in a low accuracy rate of video quality evaluation

Method used

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  • Video quality evaluation method and device
  • Video quality evaluation method and device

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Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of this specification clearer, the technical solution of this application will be clearly and completely described below in conjunction with specific embodiments of this specification and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the description, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

[0052] At present, the key frames in the video are collected by the method of sampling at equal intervals, and the blurred key frames in the motion process cannot be avoided, and the blurred key frames based on the blurred key frames cannot reflect the real quality of the video, making the video quality evaluation results inaccurate. .

[0053] Based on the abov...

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Abstract

The invention discloses a video quality evaluation method and device, and the method comprises the steps: dividing to-be-evaluated video data into a plurality of video segments based on a preset sampling interval, and determining the feature points of each frame of image in each video segment; and each video segment, performing feature point matching according to feature points in the frame of image and an adjacent frame of image, and determining the motion intensity of the frame of image according to the position information of each matched feature point in the two frames of images, so that the key frame is determined according to the motion intensity of each frame of image; and finally, according to the quality score of each key frame, determining the quality score of the video data, and performing video display according to the quality score. Through the position information of the matched feature points in each two adjacent frames of images, the motion intensity of each frame of image is determined, and based on the motion intensity of each frame of image, the key frame selection quality is improved, so that the video quality evaluation is more accurate.

Description

technical field [0001] The present application relates to the field of video technology, in particular to a video quality evaluation method and device. Background technique [0002] With the development of short videos, more and more business platforms have launched short video services. Users can upload short videos they shoot to the platform for release to display daily entertainment, product information and other content. [0003] In order to display high-quality short videos to platform users, the business platform also needs to conduct quality audits on the short videos uploaded by users, so as to push high-quality short videos to platform users based on the audit results and improve platform user experience. [0004] At present, when evaluating the quality of a video, several key frames in the video are usually collected at equal intervals, and according to the collected key frames, the quality score of each key frame is determined through the image quality evaluation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N19/154
CPCH04N17/00H04N19/154
Inventor 谢存煌马彬魏晓明
Owner BEIJING SANKUAI ONLINE TECH CO LTD
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