My research group, previously called the “Visual Surveillance Group”, has emphasized the visual aspects of detecting, describing, identifying and analyzing objects, people, activities and events in both images and videos. We are continuing along this path, except for three aspects:
In order to perform the video analysis of a hockey game, we assume the existence of a single broadcast video, which in reality is compiled by using multiple video cameras placed around a hockey rink. Camera operators are able to manually rotate and translate a camera in 3D-space, as well as adjust the focus. Thus, an on-air game video is actually a heavily edited version of many sequences of close-up, mid-range, and long-range views. Unfortunately, these multiple videos are not publicly available! Only the so-called broadcast video, which is an amalgamation of all of the on-air video clips shown on TV, is circulated to the public.
Therefore, we base our research on these broadcast videos and develop methodologies to address the inherent challenges caused by the nature and complexity of these videos. For more information, please see the Research section.
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