Method for segmenting video object based on fixed period regional compensation

A technology of video objects and fixed time period, applied in image analysis, image data processing, instruments, etc., can solve the problems of missing video segmentation objects, partial missing of video segmentation objects, etc., and achieve the effect of reducing the phenomenon of partial missing.

Inactive Publication Date: 2009-11-04
BEIHANG UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: In order to overcome the deficiency of the existing space-time joint method in video object segmentation, that is, the problem of local missing of video segmentation objects will occur, the present invention proposes a video object segmentation method based on fixed-period area compensation , which effectively solves the problem of local missing of video segmentation objects in existing video object segmentation methods based on spatio-temporal joint

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  • Method for segmenting video object based on fixed period regional compensation
  • Method for segmenting video object based on fixed period regional compensation
  • Method for segmenting video object based on fixed period regional compensation

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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] The video object segmentation method based on fixed-period area compensation of the present invention comprises the following steps:

[0021] Step 1. Time-domain motion change detection: Obtain a time-domain motion change detection template by performing noise suppression and expansion connection on the frame difference image:

[0022] In the spatio-temporal joint method, in order to determine the position of the moving object, it is necessary to use the difference information of several adjacent frames to demarcate the region where the motion occurs. The process of obtaining the change detection template is as follows: first calculate the frame difference between adjacent t frames, then perform noise suppression, and finally perform expansion connection.

[0023] Let G(x, y, t 1 ) and G(x, y, t 2 ) are respectively the t-th...

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Abstract

The invention discloses a method for segmenting a video object based on fixed period regional compensation, comprising the following steps: firstly, noise suppression and dilation connection are carried out on a frame difference image so as to obtain a change testing module; secondly, open and close reconstruction simplification is carried out on an original image so as to obtain a morphology gradient; thirdly, non-linear transformation and gradient level division are carried out on the morphology gradient image so as to finally obtain an exact boundary which is obtained in a watershed way, and the initiate binaryzation module of the video object is extracted by a scaling; and finally, a final complete video object module is obtained by the fixed period regional compensation. The method for segmenting the video object has better adaptability to various testing video sequences, and can eliminate or reduce a local deletion phenomenon which easily happens when the video object slowly moves or the internal texture of the object has higher consistency.

Description

technical field [0001] The invention relates to a processing method in video segmentation, in particular to a video object segmentation method based on a watershed segmentation method and a time-space joint segmentation method combined with fixed-period area compensation. Background technique [0002] Object-based video segmentation (Object-based video segmentation) is to extract several meaningful semantic objects (Semantic object) separately from a video. In the new-generation video coding standard MPEG-4 standard, a complete video frame can be divided into several semantic objects, and each individual semantic object is called a video object plane VOP (Video object plane). Such processing will Allow users to perform individual operations on each independent semantic object (see ISO / IEC JTC1 / SC29 / WG11.Overview of the MPEG-4standard.MPEG98 / N2323, Dublin, Ireland, July 1998.), thus enabling object-based video Compression and transmission, content-based retrieval and other t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 祝世平林云宇张庆荣
Owner BEIHANG UNIV
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