DCT based segmentation applied to a scalable zenithal people counter
نویسندگان
چکیده
This paper faces the problem of detecting the number of customers crossing an uncontrolled access to a big store, from the information retrieved by a zenithal camera. The solution operates in real time and is scalable in two ways: allows the coverage of wide accesses (spatial scalability), and works with a level of detail enough to allow detection of carried objects (functional scalability). In order to cope with the main problems of these systems —shadows, sudden changes in global lighting, and sporadic camera motion due to vibration—, a novel DCT based segmentation is presented.
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