Video concentration method

A video concentration and video technology, applied in the field of information processing, can solve problems such as incoherent video playback

Inactive Publication Date: 2015-01-14
COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In related technologies, the result of video condensing usually results in incoherent playback of the condensed video

Method used

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Embodiment Construction

[0041] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings. Embodiments of the present invention provide a video concentration method, such as figure 1 shown, including the following steps:

[0042] S101. Perform DCT transformation on multiple original single-frame images acquired in advance to obtain DC coefficients of each original single-frame image, and the multiple single-frame images belong to a continuous video sequence in the video to be concentrated;

[0043] S102. Select one or more original single-frame images in the video sequence as key frame images, and the differences between the DC coefficients of the key frame images and the DC coefficients of the adjacent one or more original single-frame images are smaller than the preset first a difference;

[0044] S103, using one or more key frame images to fuse to form a condensed video.

[0045]Since the DC coeffici...

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PUM

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Abstract

The invention relates to the field of information processing, in particular to a video concentration method. The video concentration method includes the steps that DCT conversion is conducted on each image in the same video in advance, the DC coefficient of each image is determined, then one specified single-frame image or a plurality of specified single-frame images belonging to the same video sequence are selected to be used as keyframe images according to the difference of the DC coefficients of every two adjacent images or a plurality of images, the difference values of the DC coefficients of the keyframe images and the DC coefficients of one adjacent original single-frame image or a plurality of adjacent original single-frame images are smaller than a preset numerical value, then the keyframe images constitute a concentrated video according to the preset sequence, the DC coefficients are main information carriers of DCT coefficients, within the induction range of a human visual system, the analysis demand can be completely met, hence, in the video playing process, video continuity cannot be affected, and therefore the defects in the prior art are overcome.

Description

technical field [0001] The invention relates to the field of information processing, in particular to a video concentration method. Background technique [0002] Big data is the main development direction of data processing today. In daily life, more and more video data is stored and transmitted in compressed form, resulting in a sharp increase in digital video, and it grows exponentially every day, occupying a large amount of storage resources. However, the current utilization rate of massive digital video is extremely low, and most of them are meaningless accumulation and storage. Therefore, it is necessary to condense the video to improve the utilization rate of storage resources. [0003] Video enrichment is a new video analysis concept first proposed in 2006 by the video research group of the Hebrew University of Jerusalem, Israel. The traditional methods all have one thing in common: a frame is the smallest unit that cannot be further divided, so on the basis of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/625H04N19/48
Inventor 李向伟
Owner COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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