VORTEX: video retrieval and tracking from compressed multimedia databases: affine transformation and occlusion invariant tracking from MPEG-2 video

Dan Schonfeld; Dan Lelescu

doi:10.1117/12.333833

17 December 1998 VORTEX: video retrieval and tracking from compressed multimedia databases: affine transformation and occlusion invariant tracking from MPEG-2 video

Dan Schonfeld, Dan Lelescu

Author Affiliations +

Proceedings Volume 3656, Storage and Retrieval for Image and Video Databases VII; (1998) https://doi.org/10.1117/12.333833
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

In this paper, we present topics related to tracking of video objects in compressed video databases, within the context of video retrieval applications. We developed a video retrieval and tracking system (VORTEX), to enable operation directly on compressed video data. The structure of the video compression standards is exploited in order to avoid the costly decompression operation. This is achieved by utilizing motion compensation - a critical prediction filter embedded in video compression standards - to eliminate and interpolate the desired method for template matching. Occlusion analysis, filtering and motion analysis are used to implement fast tracking of objects of interest on the compressed video data. Being presented with a query in the form of template images of objects, the system operates on the compressed video in order to find the images or video sequences, where those objects are present and their positions are in the image. This enables the retrieval and display of the query-relevant sequences.

Citation Download Citation

Dan Schonfeld and Dan Lelescu "VORTEX: video retrieval and tracking from compressed multimedia databases: affine transformation and occlusion invariant tracking from MPEG-2 video", Proc. SPIE 3656, Storage and Retrieval for Image and Video Databases VII, (17 December 1998); https://doi.org/10.1117/12.333833

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