Hierarhcical tracking of lower body parts for anti tailgating

Abstract

The computer-implemented method includes: - A detection process by which electronic circuitry communicatively connected to a detector is applied to detect reference body parts of one or more individuals in a channel, the detection process including a) setting the detector's field of view to limit capture to the lower limbs, including the feet, of individuals in the channel; b) capturing image data of one or more individuals in the channel by the detector; c) processing the image data by the electronic circuitry to detect reference body parts; d) if the reference body parts cannot be detected by processing the image data, adjusting the detector's field of view to progressively capture body parts, including the lower legs, at increasingly higher positions, and, if necessary, capturing further upwards along the body, and repeating steps b) to d) until the reference body parts can be detected with a set degree of certainty, or until the field of view limit is reached; - Detecting the trailing of individuals passing through the channel by the electronic circuitry through processing the image data and the detected reference body parts.

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