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Portrait gait identification quantitative calculation method and system

A computing method and computing system technology, applied in computing, computer parts, instruments, etc., can solve problems such as lack of quantitative analysis technology, and achieve the effect of accurate and quantifiable calculation indicators

Pending Publication Date: 2022-02-18
曾锦飞
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Problems solved by technology

[0003] Aiming at the demand for new technologies and methods for portrait gait quantitative inspection in the fields of gait recognition, forensic science and judicial appraisal, the present invention provides a quantitative calculation method and system for portrait gait appraisal to solve the problem of lack of quantification in the inspection of portrait gait characteristics. Problems supported by analysis techniques and quantitative analysis data to improve the accuracy and application value of gait characteristic inspection

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  • Portrait gait identification quantitative calculation method and system
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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0021] This embodiment provides a quantitative calculation method for portrait gait identification. The whole workflow is as figure 1 shown, including the following steps:

[0022] Step a, select two gait feature vectors to be checked, mark them as inspection material gait feature vector J and sample gait feature vector Y, select one step feature vector data set D[i][j](i= 1,...,N)(j=1,...,P), wherein, N is the total number of human individuals in the data set, and P is the maximum number of gait feature vectors of individuals with the same serial number. When P=1, it means that there is only one gait feature vector for each individual in the gait feature vector data set, which is also the status of the current mainstream gait feature database or...

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Abstract

The invention discloses a portrait gait identification quantitative calculation method and system, and the method mainly comprises the steps: calculating a similarity quantized value S of a detection material gait feature vector and a sample gait feature vector, and a similarity quantized value of the detection material gait feature vector and a gait feature vector in a gait feature data set, and carrying out the statistics and detection material gait comparison, calculating the number M of gait individuals more similar to the sample gait in the gait feature data set and the ratio R of M to the total number of individuals in the data set, and finally taking S / R, 1 / R, S, M and R as quantitative calculation indexes for sample gait and sample gait identification.

Description

technical field [0001] The invention relates to gait recognition and portrait identification technology, in particular to a quantitative calculation method and system for portrait gait identification. Background technique [0002] Gait recognition is an important biometric recognition technology similar to face recognition. It mainly identifies individual identities through body shape, posture and walking posture. It has important application value in the fields of security monitoring and forensic science and judicial identification. The gait feature in the field of forensic science and forensic identification is an important dynamic feature of portraits in portrait identification, which can be effectively used to judge whether the moving human body appearing in the video is the same person. At present, in the field of artificial intelligence pattern recognition research, the gait recognition process generally includes human detection, human tracking, human segmentation, gai...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/20G06K9/62G06V10/74
CPCG06F18/22
Inventor 曾锦飞
Owner 曾锦飞