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Video brief generating method and device

A technology for generating devices and videos, which is applied in image communication, selective content distribution, electrical components, etc. It can solve the problems of increased calculation and slow speed of generating video thumbnails, etc., and achieve the effect of reducing code stream and improving viewing efficiency

Inactive Publication Date: 2019-04-05
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the embodiment of the present application provides a video thumbnail generation method and a video thumbnail generation device, to solve the need to perform full decoding and / or content analysis of the video in the prior art, resulting in an increase in the amount of calculation , The technical problem of slow video thumbnail generation

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  • Video brief generating method and device
  • Video brief generating method and device

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Embodiment Construction

[0052] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] The core idea of ​​the embodiment of the present application is to propose a video thumbnail generation method and a video thumbnail generation device, the method includes: providing a video file including a plurality of video frames; acquiring one or more associated information of the video frames ; use the one or more associated information to determine the video frame that meets the set condition; use the video frame that meets the set condition to generate a video thumbnail; wherein the associated information may include the quantization factor of the video frame, The data amount of the video frame, the motion vector, or the additional information corresponding to the video frame. Users can q...

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Abstract

The invention provides a video brief generating method and device. The method comprises that a video file including multiple video frames is provided; one or multiple pieces of association informationof the video frames is obtained; a video frame satisfying a set condition is determined according to the one or multiple pieces of association information; and a video brief is generated according tothe video frame satisfying the set condition. Compared with the prior art in which all video frames are decoded and analyzed in content, the video brief can be generated more rapidly, and less computing resource of a system is consumed.

Description

【Technical field】 [0001] The embodiments of the present application relate to the field of computer application technologies, and in particular, to a video thumbnail generation method and a video thumbnail generation device. 【Background technique】 [0002] As a multimedia information carrier, video is an important means for people to obtain information in today's society. Compared with text and pictures, video can carry more information and express what needs to be expressed more quickly and accurately. [0003] As a process of video generation, the photographer of the video collects and stores the original material (such as multi-frame pictures and corresponding audio) in the camera device, and uses the video generation tool to process these original videos to generate a specified format video files for viewers to watch. [0004] However, it is difficult for a video viewer to directly see the general content of a video at a glance. Especially when there are both importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/8549H04N21/234H04N21/233H04N21/235H04N21/44H04N21/439H04N21/435
CPCH04N21/233H04N21/23418H04N21/235H04N21/435H04N21/4394H04N21/44008H04N21/8549
Inventor 杨江
Owner ALIBABA GRP HLDG LTD
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