A Fast Algorithm for Reconstructing Motion-Compensated Blocks in Compressed Domain |
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| Authors: | HONGZHENG LI HONGCHI SHI |
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| Affiliation: | Department of Computer Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, 65211, U.S.A.f1, f2 |
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| Abstract: | Many advanced video applications require processing compressed video signals. For compression systems using the discrete cosine transform (DCT) with motion compensation, we propose an algorithm with adaptive low-pass filtering (ALPF) to reconstruct blocks with motion vectors in the compressed domain. Compared with the previous work, this algorithm is faster and reduces blocky artifacts caused by quantization. |
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| Keywords: | discrete cosine transform motion compensation compressed domain low-pass filtering |
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