Gait recognition method based on orthogonal projection three-dimensional reconstruction of human motion structure

Abstract

The invention belongs to human feature recognition, human gait recognition method and identity recognition, and particularly relates to a gait recognition method based on orthogonal projection three-dimensional reconstruction of a human motion structure. Under the condition of human normal walking, the provided novel gait recognition method can accurately extract human gait feature in real time, reduce the influence of external environment, recognize human identity, and improve the recognition rate. The invention adopts a technical proposal that: the gait recognition method based on the orthogonal projection three-dimensional reconstruction of the human motion structure is realized by means of the following devices: on one side of a semicircle of which radius is a human walking straight line, a camera device is arranged at intervals of 18 degrees, and eleven camera devices for picking up a human walking video sequence are arranged; and the method comprises the following steps: using the camera devices to carry out human gait tracking, carrying out three-dimensional gait reconstruction according to the tracking result, and then extracting the gait feature to recognize the gait. The method is mainly applied to identity recognition through human gait.

Description

technical field [0001] The invention relates to human feature recognition, a human body gait recognition method, and identity identification, and in particular to a gait recognition method based on three-dimensional reconstruction of the forward projection of the human body motion structure. Background technique [0002] Biometric identification is the identification of personal identity through various high-tech information detection methods and the use of the inherent physiological or behavioral characteristics of the human body. Biological characteristics mainly include physiological characteristics and behavioral characteristics. Physiological characteristics refer to innate and congenital physical characteristics of the human body, such as fingerprints, irises, faces, etc.; The characteristics that come out are mostly acquired, such as gait, handwriting and so on. The history of human beings using biometric identification can be traced back to the ancient Egyptians for...

AI Technical Summary

Problems solved by technology

The non-model method is characterized by a relatively small amount of calculation, which is helpful to achieve the purpose of real-time calculation in practical links, but it is sensitive to changes in the background and light signals. Once occlusion occurs in the scene, the recognition ability will be greatly affected.

The model-based gait recognition algorithm can more accurately describe the gait characteristics and greatly reduce the sensitivity to changes in external conditions, but the huge amount of calculation is a difficult problem for real-time practical applications

In addition, the analysis of these two methods requires that the plane of human walking must be parallel to the plane where the camera is located. When the plane of human walking is not parallel to the plane where the camera is located, the gait recognition rate will be reduced.

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