SYSTEM AND METHOD FOR DETERMINING VIEW INVARIANT SPATIAL-TEMPORAL DESCRIPTORS FOR MOTION DETECTION AND ANALYSIS

摘要

A method and system for determining view invariant spatial-temporal descriptors encoding details of both motion dynamics and posture interactions that are highly representative and discriminative. The method and system describe determining posture interactions descriptors and motion dynamics descriptors by utilizing cosine similarity approach thereby rendering the descriptors to be view invariant.

主权项

1. A system for determining view invariant spatial-temporal descriptors comprising:
a depth acquisition module for retrieving depth information related to a plurality of joints over a time period, wherein at least a pair of joints amongst the plurality of joints constitute a limb; at least one processor; and a memory comprising one or more modules adapted to be executed by the at least one processor, wherein the processor upon executing the modules is configured for determining posture interactions descriptors and motion dynamics descriptors for the depth information retrieved by the depth acquisition module, wherein the posture interactions descriptors are determined based on cosine similarities between one or more limbs, arid the motion dynamics descriptors is determined based on cosine similarities between movements of the plurality of joints.