Visual Search In A Smash System

Key frame extraction is an important preprocessing step for visual searching tools in image and video information. We describe two novel components of a key frame extraction system. Assuming that shot detection has taken place and that a frame-to-frame action measure is given, we propose a global key frame allocation method, which needs as input the user defined key frame rate, and an estimate for the average cumulative action. After assigning a number of key frames to a shot, an algorithm is proposed that distributes the key frames over the shot such that an optimal L 1 approximation of the cumulative action function is obtained. 1. MULTIMEDIA STORAGE SYSTEMS With the progression of advanced communication networks and systems, many services will be provided in digital form to the domestic consumer. Besides the currently emerging services such as video-on-demand and pay-television, a rapidly increasing number of nontelevision like information services will become available such as dig..