ZoneMinder is video and cctv surveillance and security application. It supports multiple video or IP cameras and a sophisticated motion detection system based around zones. Both live streams and historic events can be viewed via the web interface.
MotionView consist of a set of utilities for motion (http://motion.sf.net).
XMotion is a graphical interface which supports viewing the pictures captured (via FTP or local file system) and the interactive configuration using the XML-RPC protocol.
Manage sources of video (i.e., from a security camera), recording clips where motion has been detected, and allowing those clips to be replayed.
Variable lead-in/out time, motion detection, logging.