Early human actions detection using BK sub-triangle product

Humans have the natural capabilities to perceive and anticipate actions of objects they interact with, including incidents happen within their neighborhood. These days, this important aspect of human perception has been widely incorporated in the computer vision framework to perform human action detection task. However, little attention is paid to the problem of detecting ongoing human actions as early as possible, which is crucial in a number of important applications ranging from video surveillance to health-care. In this paper, we propose a framework for detecting ongoing human actions as early as possible, i.e. detecting an action as soon as it begins, but before it completes. This is make possible with the used of Fuzzy Bandler and Kohout´s sub-triangle product (BK subproduct) inference mechanism, utilizing the fuzzy capabilities in handling the arisen uncertainties during the human action recognition stage for a reliable decision making. Experimental results on publicly available dataset illustrate the effectiveness of the proposed method.