Method for conducting automatic passenger flow statistical analysis on basis of video images

A statistical analysis, video image technology, applied in the field of passenger flow analysis, can solve the problem of high continuous maintenance costs

Active Publication Date: 2015-04-22
杭州旺街商业运营管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in large shopping malls, due to the need to decode and analyze multiple channels of video distributed in various locations without interruption, it is necessary to deploy a dedicated computer room and purchase multiple video servers, resulting in high construction and subsequent maintenance costs.

Method used

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  • Method for conducting automatic passenger flow statistical analysis on basis of video images
  • Method for conducting automatic passenger flow statistical analysis on basis of video images
  • Method for conducting automatic passenger flow statistical analysis on basis of video images

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Experimental program
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Embodiment Construction

[0034] The steps of automatic passenger flow statistical analysis method based on video images are as follows:

[0035] 1) Video stream analysis

[0036] First, for the video code stream sent by the camera, call the code stream analysis unit of the decoder to extract the code stream information, and obtain the motion vector (MV) of each coding sub-block in the current video capture picture. The principle of consistency of motion direction of sub-blocks, applying a median filter to the motion vector of each sub-block and the motion vector of its adjacent sub-blocks to eliminate the motion estimation vector errors that may occur in the encoding process, filter template The size is 3-5 pixels, and the residual information of the motion error of each sub-block is read from the code stream at the same time;

[0037] 2) Pixel point MV solution

[0038] Use the method of correcting the motion vector based on the pixel point for the motion vector, and obtain the motion vector mvpixe...

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PUM

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Abstract

The invention discloses a method for conducting automatic passenger flow statistical analysis on the basis of video images. The method includes the following steps of firstly, analyzing video code streams; secondly, obtaining pixel point MV; thirdly, obtaining foreground targets; fourthly, obtaining human flow directions. By means of the method, data collection expenses can be greatly reduced, and incomplete information caused by manual counting is avoided. The technology has been quite popular in developed countries such as Europe and America, and a large number of passenger flow analysis systems are gradually adopted in developed areas such as Singapore, Japan and Hong Kong. Special machine rooms need to be arranged and multiple video servers need to be purchased for conducting unceasing decoding and video analyzing on multi-channel videos distributed in all positions in large markets, and the construction and subsequent continuous maintenance cost is high.

Description

technical field [0001] The invention relates to a passenger flow analysis method, in particular to an automatic passenger flow statistical analysis method based on video images. Background technique [0002] Passenger flow analysis is an important market research method, which must be carried out in almost all foreign shopping centers, shopping malls, large chain business halls and chain commercial outlets before making various business decisions. With the intensification of competition, the business model has gradually changed from a traditional business to a very proactive business. Therefore, it is particularly important for merchants to analyze and control the statistics of daily passenger flow and their changing laws. At present, many domestic business decision makers have realized the importance of passenger flow information for business management and business decision analysis. Generally, statistics and analysis of passenger flow data are carried out manually durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20G07C9/00
CPCG06T2207/10016
Inventor 曾慧
Owner 杭州旺街商业运营管理有限公司
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