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Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal

A technology for casting shadows and vehicle detection. It is used in traffic flow detection, traffic control systems for road vehicles, and components of color TVs. It can solve problems such as inaccurate target separation and target adhesion, improve capture rate, and facilitate maintenance. , Improve the effect of position detection accuracy

Active Publication Date: 2013-01-16
广州烽火众智数字技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Using the correlation of the rigid body characteristics of moving vehicles between multiple frames, and the differences in the local texture characteristics of motor vehicles and projected shadows, the removal of projected shadows is realized, which effectively solves the problem of target adhesion and inaccurate target separation caused by projected shadows on the separation of motor vehicles The problem

Method used

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  • Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal
  • Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal
  • Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal

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Embodiment Construction

[0058] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0059] 1. Intelligent network camera A

[0060] 1. Overall

[0061] As shown in Figure 1, intelligent network camera A includes LENS optical lens 1, CCD image sensor 2, signal acquisition converter 3, HV signal driver 4, FPGA programmable logic processor 5, SDRAM memory 6, H264 video encoder 7 and ARM center Processor 8;

[0062] A DSP image processor 9 is provided;

[0063] ①LENS optical lens 1, CCD image sensor 2, signal acquisition converter 3, FPGA programmable logic processor 5, SDRAM memory 6, DSP image processor 9 and ARM central processor 8 are connected in sequence to realize image acquisition, storage, analysis and deal with;

[0064] ②The FPGA programmable logic processor 5, the HV signal driver 4 and the CCD image sensor 2 are connected in sequence to realize the control of the CCD image sensor 2;

[0065] ③FPGA programmable logic processor 5, H264 video encoder 7 and AR...

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Abstract

The invention discloses a method and a device for detecting moving vehicles on the basis of multi-frame differences and cast shadow removal, and relates to the field of intelligent traffic management and video monitoring. The method includes a, acquiring a sequence picture of a current frame; b, acquiring a gray value sequence picture of the current frame; c, acquiring characteristics of binary images of edges of the current frame and edges of interframe differences; d, acquiring edge characteristics of moving vehicles of the current frame; e, acquiring edge characteristics of shadow of the current frame; f, acquiring accurate edge characteristics of the shadow of the current frame; g, acquiring an accurate picture sequence of the edge characteristics of the moving vehicles; and h, extracting specific coordinates of the moving vehicles from the picture sequence. The method and the device have the advantages that a capture scheme on the basis of video detection is provided for an intelligent traffic system to detect the moving vehicles, the system is simple in installation and easy to maintain, moving vehicle capture rate is increased, and motor vehicle position detection precision is improved.

Description

technical field [0001] The invention relates to the fields of intelligent traffic management and video surveillance, in particular to a moving vehicle detection method and device based on multi-frame difference and projection shadow removal. Background technique [0002] With the rapid development of my country's economy and the sharp increase in the number of social motor vehicles, vehicle-related incidents and cases have increased exponentially. In order to improve the level of social security and reduce the probability of vehicle-related incidents and cases, detection and monitoring technologies for motor vehicles have been extensively studied. Motor vehicle detection technology based on video analysis has been rapidly promoted and applied, and has been applied to security checkpoints, red light capture, abnormal vehicle event detection, non-stop automatic toll collection system, community / parking vehicle management system, traffic flow information detection system, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/017G06K9/54H04N5/232
Inventor 张仁辉万晨
Owner 广州烽火众智数字技术有限公司
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