Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Christopher Richard Wren, Ali Azarbayejani, Trevor Darrell, Alex Pentland. Pfinder: Real-Time Tracking of the Human Body. IEEE Trans. Pattern Anal. Mach. Intell., 19(7):780-785, 1997. [doi]