Shih-Fu Chang, David G. Messerschmitt. A New Approach to Decode and Composite Motion Compensated DCT-Based Image Segments. In IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'93), Minneapolis, Minnesota, April 1993.
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Multi-point network video services require compositing several video sources into a single displayed video stream. Compositing video directly in the compressed domain can save computations by processing less data and avoiding the conversion process back and forth between the compressed and uncompressed data for-mats. Earlier work has demonstrated the computational speedup of compositing DCT-compressed video directly in the DCT domain, compared to the straightforward spatial-domain approach. Typical compositing operations include overlapping, scaling, translation, filtering, etc. In this paper, we propose a new decoding algorithm for MC-DCT compressed video which con-verts MC-DCT compressed video to the DCT domain and enables video compositing in the DCT compressed domain. Computational complexity is analyzed. The idea of network compositing and its impacts on multimedia network implementa-tions are also discussed
@InProceedings{dvmmPub206,
Author = {Chang, Shih-Fu and G. Messerschmitt, David},
Title = {A New Approach to Decode and Composite Motion Compensated DCT-Based Image Segments},
BookTitle = {IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'93)},
Address = {Minneapolis, Minnesota},
Month = {April},
Year = {1993}
}
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