Method and system for recognizing nights pedestrian based on thermal infrared gait

A recognition method and pedestrian recognition technology, applied in the field of computer vision and pattern recognition, can solve the problems of high computational complexity and low computational efficiency of gait recognition algorithms

Inactive Publication Date: 2008-07-23
INST OF AUTOMATION CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0028] The existing technology is aimed at the identification of pedestrians in the daytime under the visible light mode. The gait recognition algorithm has high computational complexity and low computational efficiency, and cannot be used in occasions with high real-time requirements. In order to solve the pr...

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  • Method and system for recognizing nights pedestrian based on thermal infrared gait
  • Method and system for recognizing nights pedestrian based on thermal infrared gait
  • Method and system for recognizing nights pedestrian based on thermal infrared gait

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Embodiment Construction

[0093] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0094] The present invention is related to human motion analysis, more precisely, related to pedestrian identification by means of human gait analysis in video image data stream, and belongs to the application field of pattern recognition. The invention makes full use of technologies in the fields of digital image processing, computer vision, pattern recognition and the like, and promotes the application of gait, a biological feature technology, in night vision monitoring.

[0095] Main contribution and characteristic of the present invention are:

[0096] 1) Use the self-adaptively updated mixed Gaussian model to statistically model the grayscale of infrared image pixels, which enables the system to detect ...

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Abstract

The invention discloses a night pedestrian identification method and a system thereof based on thermal infrared gait. The steps of the method comprise detecting and dividing the pedestrian from infrared video images to obtain image sequences of the thermal infrared gait, employing an average gray image to describe videos of the thermal infrared gait to obtain features of the thermal infrared gait and identifying the thermal infrared gait of the pedestrian in the thermal infrared video images, based on a nearest neighbor classifier and taking the average gray image as the description of identity. The system comprises an acquisition module of the thermal infrared video images and an analysis processing module for the infrared images. Experiments on a CASIA night infrared gait data bank and an NLPR day visible light modal gait data bank prove that the invention has effectiveness for identification of the night pedestrian and strong identification ability of gait representation mode. The invention is applied to security monitoring of special occasions.

Description

technical field [0001] The invention belongs to the application field of pattern recognition, and relates to digital image processing, computer vision and pattern recognition technology for biological characteristics of gait. Background technique [0002] Gait means the way a person walks. In a broad sense, gait contains both dynamic information during pedestrian movement and static information of human body shape. Early psychophysical and medical gait analysis results proved that gait contains rich individual characteristics and is unique to an individual, so it can be used for identification. [0003] After the September 11 terrorist attacks in the United States, the governments and people of various countries have a stronger demand for security than ever before. Traditional human-intensive surveillance systems have some limitations: [0004] ① requires the staff to maintain a high degree of concentration for a long time; [0005] ②Monitoring of a large amount of real-...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06V10/143
CPCG06K9/00348G06K9/2018G06V40/25G06V10/143
Inventor 谭铁牛黄凯奇覃道亮
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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