Video abstract generation method and device

A technology of video summarization and generation device, which is applied in the field of video processing, can solve the problems of long time consumption and low efficiency of video summarization, and achieve the effect of reducing waiting time and avoiding conflicts

Active Publication Date: 2017-11-17
SUZHOU KEDA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiments of the present invention provide a method and device for generating video sum

Method used

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  • Video abstract generation method and device
  • Video abstract generation method and device

Examples

Experimental program
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Embodiment 1

[0060] This embodiment provides a method for generating a video abstract, which is used in a device for generating a video abstract. Such as figure 1 As shown, the video summary generation method includes the following steps:

[0061] Step S11, acquiring the video to be processed.

[0062] The video to be processed in this embodiment may be stored in the video summary generation device in advance, or the video obtained by the video summary generation device from the outside in real time, or may be a video segment extracted by the video summary generation device from a video.

[0063] Step S12, divide the video to be processed into multiple slices.

[0064] In this embodiment, by previewing the total duration of the video to be processed in the video summary generation device, the number of slices can be divided according to the processing capability of the video summary generation device. For example, the maximum amount of data that can be processed concurrently may be dete...

Embodiment 2

[0073] This embodiment provides a method for generating a video abstract, which is used in a device for generating a video abstract. Such as figure 2 As shown, the video summary generation method includes the following steps:

[0074] Step S21, acquiring the video to be processed. It is the same as step S11 in Embodiment 1, and will not be repeated here.

[0075] Step S22, divide the video to be processed into multiple slices.

[0076] In this embodiment, the video to be processed is divided into multiple slice files by previewing the total duration of the video to be processed in the video summary generation device, and according to the data processing capability of the hardware circuit in the video summary generation device.

[0077] After the video to be processed is divided into multiple slices, the start and end positions of each slice are recorded for subsequent decoding operations on the slices before the target analysis task is performed on each slice.

[0078] In...

Embodiment 3

[0108] This embodiment provides a method for generating a video abstract, which is used in a device for generating a video abstract. Such as image 3 As shown, the video summary generation method includes the following steps:

[0109] Step S31, acquiring the video to be processed. It is the same as step S21 in Embodiment 2, and will not be repeated here.

[0110] Step S32, divide the video to be processed into multiple slices. It is the same as step S22 in Embodiment 2, and will not be repeated here.

[0111] Step S33, start multiple threads corresponding to multiple slices one by one, respectively execute target analysis tasks for each slice, and obtain analysis results of moving targets in each slice. It is the same as step S23 in Embodiment 2, and will not be repeated here.

[0112] In step S34, the sequence of multiple slices is used to condense and calculate the analysis results of the moving object, so as to generate a video summary of the video to be processed.

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Abstract

The invention discloses a video abstract generation method and device. The method comprises: acquiring a to-be-processed video; dividing the to-be-processed video into a plurality of slices; starting a plurality of threads in one-to-one correspondence with the plurality of slices and respectively performing a target analysis task on each slice to obtain an analysis result of a moving target in each slice; and carrying out concentration calculation on the analysis results of the moving targets based on a sequential order of the plurality of slices to generate a video abstract of the to-be-processed video. According to the video abstract generation method provided by the invention, the target analysis tasks of one video are processed by using multiple threads in parallel and then integrated concentration is carried out on the dispersed analysis results to generate a video abstract, so that an objective of browsing all contents of the video within short time is achieved and thus waiting time is reduced.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a method and device for generating a video abstract. Background technique [0002] As people's demand for multimedia information continues to increase, a large amount of multimedia data emerges. Video, as a main type of multimedia, plays an increasingly prominent role in enriching people's life, education, and entertainment. How to effectively organize, manage, query, retrieve and browse video data has become an urgent problem to be solved. [0003] Video summarization is an effective way to solve the above problems. Video summarization, also known as video enrichment, refers to a simple summary of the video content. In an automatic or semi-automatic manner, firstly through the analysis of moving targets, the moving targets are extracted, and then each target is extracted. Analyze the trajectory of different objects, stitch different objects into a common backgr...

Claims

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Application Information

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IPC IPC(8): H04N21/858H04N21/845H04N21/8352
Inventor 许芳丁美玉赵波晋兆龙陈卫东
Owner SUZHOU KEDA TECH
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