A Survey of Human Activity Interpretation in Image and Video Sequence
In the past, a large amount of intensive research has been dedicated to the interpretation of human activity in image and video sequence. This popularity is largely due to the emergence of the wide applications of video cameras in surveillance. In image and video sequence analysis, human activity detection and recognition is critically important. By detecting and understanding the human activity, we can fulfill many surveillance related applications including city centre monitoring, consumer behavior analysis, etc. Generally speaking, human activity interpretation in image and video sequence depends on the following stages: human motion detection and human motion interpretation. In this chapter, the authors provide a comprehensive review of the recent advance of all these stages. Various methods for each issue are discussed to examine the state of the art. Finally, some research challenges, possible applications, and future directions are discussed.