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Method for segmenting multiple vehicles connected through shadows in video

A multi-vehicle, in-video technology for instrumentation, character and pattern recognition, computer components, and more

Inactive Publication Date: 2013-04-17
BEIJING CUTOPS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, try to use various color spaces, such as HSV, YCbCr, HIS, etc., and comprehensively use attributes such as brightness, chroma, texture, and gradient to eliminate shadows, but the problem encountered is that the eliminated shadows are not complete. less than purpose

Method used

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  • Method for segmenting multiple vehicles connected through shadows in video
  • Method for segmenting multiple vehicles connected through shadows in video
  • Method for segmenting multiple vehicles connected through shadows in video

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Embodiment Construction

[0033] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] Such as image 3 As shown in , a multi-vehicle segmentation method for shadow connections in videos, including the following steps:

[0035] Step 1: Input a video frame, and first perform a background difference operation on the original image a in the input video frame to obtain a binarized foreground image b;

[0036] Step 2: Select the vehicle area in image b, and this area is obtained through the foreground obtained by continuous image background difference; set all the gray values ​​of the parts outside this area to 0, and obtain image c; frame the blob block in the above hot spot area , that is, a minimum circumscribed rectangle of the blob block, to o...

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Abstract

The invention discloses a method for segmenting multiple vehicles connected through shadows in a video. The method comprises the following steps of: performing edge computing on a vehicle area of an image; then, performing comparison and judgment on images obtained after computing; removing outer contours of the shadows through edge information; and then, removing the shadows of the vehicles through a morphological method. As the edge information is mainly concentrated at the part of the outer contours of the shadows, the goal that the shadows are removed is achieved through image difference, and meanwhile, as the edge information of the vehicles is relatively rich, and moreover, the edge information is insensitive to illumination variations, the method has universality.

Description

technical field [0001] The invention relates to the fields of computer vision, pattern recognition and digital image processing, in particular to a multi-vehicle segmentation method for shadow connection in video. Background technique [0002] Since the vehicle and its moving shadow have very similar motion attribute characteristics, they will be connected together when extracting the foreground target after background difference. If the shadow is not eliminated (the shadows referred to in this article are all moving shadows, the same below) will affect the vehicle Subsequent operations such as detection and vehicle tracking have a large impact, so shadow removal is necessary. Among them, the shadow is eliminated in the blob block, and the encountered situations are divided into two categories: the first type is that there is only one car and its shadow in the blob block, and the second type is that there are two (or more) cars passing through the blob block Shadows join to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
Inventor 明安龙傅慧源林昭文
Owner BEIJING CUTOPS TECH