Human action recognition to human behavior analysis

Human machine interaction becomes one of the most research topics in multimedia processing, traditional techniques for communication are developed in order to tackle technology advances and allow disable person to communicate easily with the machine, and to understand their activity using computer computing. In this paper we are focused on human behavior analysis from video scene and it is worth noticed that many information are hidden behind gesture, sudden motion and walking speed, many research works tried to model and then recognize human behavior through motion analysis. In our work we will explain the human action recognition By K Nearest Neighbors approach.