Video thumbnail generation method and device

A technology for generating devices and thumbnails, which is applied in the field of image processing and can solve the problems of large amount of calculation and low efficiency.

Active Publication Date: 2012-01-25
WONDERSHARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the embodiments of the present invention is to provide a method and device for generating video thumbnails, which can avoid the problems in the prior art that generate thumbnails by analyzing each video frame of the entire video, which require

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  • Video thumbnail generation method and device
  • Video thumbnail generation method and device

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Embodiment Construction

[0046] The method and device for generating video thumbnails provided by the embodiments of the present invention can simply and effectively select video frames that have reference value for video content from videos, and compress and generate thumbnails of the videos.

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] see figure 1 , which is a schematic flow chart of the first embodiment of the video thumbnail generation method provided by the present invention, as figure 1 Shown:

[0049] In step S100,...

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Abstract

The embodiment of the invention discloses a video thumbnail generation method and device. The method comprises the following steps: carrying out scene boundary detection on a video, and sectioning the video according to different scenes; from all sections of the video, selecting a section with the longest duration as a key section; from all video frames contained in the key section, selecting a video frame with the highest balance as a key video frame; and compressing an image of the key video frame so as to generate a thumbnail to be used as the thumbnail of the video. The video thumbnail generation method and device disclosed by the embodiment of the invention can solve the problems that in the prior art, by analyzing each video frame of the whole video to generate the thumbnail, the calculation amount is large, and the efficiency is low; the invention also solves the problem that in the prior art, a video frame having no reference value for the video content is used as the thumbnail of the video; and a video frame which represents the video content and has a reference value for users can be captured as the thumbnail of the video.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a video thumbnail generation method and device. Background technique [0002] In traditional media, text and pictures are the main information carriers. In order to facilitate people to quickly understand the content of text and pictures, abstracts and thumbnails are usually used to display some key information and attract users' attention. [0003] With the development of computer network technology, more and more people obtain information through video, but due to the particularity of video information, the content representation of space and time cannot be fully described by language alone. How to present the "summary" of the video to the user is an urgent problem to be solved. [0004] At present, the "summary" of the video is mainly to extract a certain frame of picture from the video to generate a thumbnail of the video, which is used as a content-based browsing and accessi...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06T7/00
Inventor 程伟
Owner WONDERSHARE TECH CO LTD
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