Continuous Detection And Recognition Of Actions Of Interest Among Actions Of Non-Interest Using A Depth Camera

This paper presents a human action recognition approach using a depth camera for situations when actions of interest are performed in a continuous and random manner among actions of non-interest. The developed approach first performs detection of actions of interest by separating actions of interest from actions of non-interest in an on-the-fly manner and then classifies the detected actions of interest. Skeleton joint positions from depth images are used to achieve the detection of actions of interest. Recognition of detected actions of interest is then achieved by fusing the outcome of two classifiers, one classifier using skeleton joint positions and the other classifier using depth images. A continuous dataset consisting of actions of interest associated with the smart TV application is collected and made publicly available. The results obtained by applying the developed approach to this dataset indicate its effectiveness in detecting and recognizing actions of interest from continuous data streams.