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A video search method and system

A video search and video technology, applied in the field of video search, can solve the problems of low efficiency and large amount of calculation of video content, and achieve the effect of improving timeliness

Active Publication Date: 2020-07-03
深圳市梦网视讯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiment of the present invention is to propose a video search method, aiming to solve the problems of large amount of calculation and low efficiency in the retrieval of video content in the prior art

Method used

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  • A video search method and system
  • A video search method and system
  • A video search method and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 It is a flow chart of a video search method in a preferred embodiment of the present invention; the method includes the following steps:

[0044] Step0: Determine the current frame picture of the current search video t The judgment parameter par t Whether it is 1, if so, go to Step1, otherwise, go to Step4.

[0045] Among them, pic t Represents the tth frame of the current search video (i.e. the current frame of the current search video), t represents the frame number of the search video sequence, and the initial value of t is 1; par t means pic t the judgment parameter,

[0046]

[0047] Condition 1 means: t=1 or pic t For intra prediction frame or tp t ≥0.9*bkh*bkw;

[0048] tp t switch parameters for the scene, tp t =sum(sign(bk t (i,j)|condition 2)|1≤i≤bkh and 1≤j≤bkw); sum(variable|condition) means to sum the variables that satisfy the condition; i j respectively represent the row coordinates and column coordinates of the decoding block loc...

Embodiment 2

[0073] Figure 4 It is a structural diagram of a video search system in a preferred embodiment of the present invention, and the system includes:

[0074] The first judgment processing module is used to judge the current frame pic of the current search video t The judgment parameter par t Whether it is 1, if so then enter the first video search device, otherwise enter the scene switching parameter calculation module;

[0075] Among them, pic t Represents the tth frame of the current search video (i.e. the current frame of the current search video), t represents the frame number of the search video sequence, and the initial value of t is 1; par t means pic t the judgment parameter,

[0076]

[0077] Condition 1 means: t=1 or pic t For intra prediction frame or tp t ≥0.9*bkh*bkw;

[0078] tp t switch parameters for the scene, tp t =sum(sign(bk t (i,j)|condition 2)|1≤i≤bkh and 1≤j≤bkw); sum(variable|condition) means to sum the variables that satisfy the condition; ...

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Abstract

The invention discloses a video searching method and system. By use of the method, through information in an uncompressed domain, the search area of a key frame is determined, the motion and prediction information of a compressed domain is utilized to obtain and track the search area, and therefore, video searching timeliness is improved by a small video searching data size and operation amount.

Description

technical field [0001] The invention relates to the technical field of video search, in particular to a video search method and system. Background technique [0002] With the rapid development of multimedia technology and computer network technology, video has gradually become one of the mainstream carriers of information dissemination. The problem people face is no longer the lack of video content, but how to quickly and effectively find the content they need in the face of vast video information. As the most popular video search technology at present, content-based video retrieval automatically extracts and describes the characteristics and content of videos according to the content and context of videos, and retrieves video data in large-scale video databases. Specifically, according to the analyzed data, it can be divided into two categories: video content retrieval based on uncompressed domain and video content retrieval based on compressed domain. All algorithms of v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/735
CPCG06F16/735
Inventor 马国强
Owner 深圳市梦网视讯有限公司