This book explains the growing importance of video surveillance. Surveillance cameras are present at nearly all places streaming thousands of hours of video. But a major issue of concern is whether the footage collected can be effectively analyzed to find subjects/events of interest and prevent potential accidents. This book addresses these concerns and other major problems by skillfully combining the research experience of experts with practical real life applications. It serves as a significant reference for researchers and students by providing relevant information, pointers to advances in the field and useful description on modern applications. It also provides guidance for existing problems where further advances can be pursued.