Gait recognition platform and method based on trusted execution environment

Abstract

The invention discloses a gait recognition platform and method based on a trusted execution environment. The gait recognition platform comprises a key management module, a gait collection module, an encryption module, a preprocessing module, a feature extraction module and a classification recognition module. The monitoring camera equipment acquires a public key which is stored in the trusted execution environment and used for an asymmetric encryption algorithm, encrypts a gait video sequence acquired by the monitoring camera equipment by using the public key, sends the encrypted gait video sequence to the computer, transmits the encrypted gait video sequence to the trusted execution environment, preprocesses the encrypted gait video sequence in the trusted execution environment, sends thepreprocessed image sequence to a feature extraction application program in a trusted execution environment, analyzes and extracts gait features in the feature extraction application program, comparesand identifies the extracted gait features with the gait features in a gait database, and returns a comparison result to a common environment. The gait recognition platform and method can effectivelyprevent malicious programs from embezzling gait information, and defend against time sparse adversarial attacks for gait recognition.

Description

technical field

[0001] The invention belongs to the technical field of gait recognition, and in particular relates to a gait recognition platform and a recognition method based on a trusted execution environment. Background technique

[0002] Gait recognition is an emerging biometric recognition technology, which aims to identify people through their walking posture. Compared with other biometric technologies, gait recognition has the advantages of non-contact, long-distance and not easy to camouflage. In the field of intelligent video surveillance, it has more advantages than image recognition. Therefore, gait recognition has become the focus of current research. Gait refers to the way people walk, which is a complex behavioral characteristic. Criminals may dress themselves up so that not a single hair of their body falls on the crime scene, but there is one thing they have little control over, and that's the way they walk. Research by Professor Mark Nixon of the Departm...

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