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Proceedings Paper

Low-complexity integer transform and high-definition coding
Author(s): Siwei Ma; Xiaopeng Fan; Wen Gao
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Paper Abstract

In H.264/AVC, an integer 4×4 transform is used instead of traditional float DCT transform due to its low complexity and exact reversibility. Combined with the normalization for the integer transform together, a division-free quantization scheme is used in H.264/AVC. H.264/AVC is the most outstanding video coding standard at far. But at first H.264/AVC targets to low bit-rate coding, and almost all experimental results of the proposals for H.264/AVC are tested at low bit-rate. In the near, experimental results show that 8×8 transform can further improve the coding efficiency on high definition (HD) coding. In this paper a kind of 8×8 low complexity integer transforms are studied and corresponding quantization schemes are developed for HD coding. Compared with 4×4 transform/prediction based coder, the proposed 8×8 based coder can achieve better performance on HD coding while with much lower encoder/decoder complexity.

Paper Details

Date Published: 2 November 2004
PDF: 8 pages
Proc. SPIE 5558, Applications of Digital Image Processing XXVII, (2 November 2004); doi: 10.1117/12.563808
Show Author Affiliations
Siwei Ma, Institute of Computing Technology, CAS (China)
Xiaopeng Fan, Harbin Institute of Technology (China)
Wen Gao, Institute of Computing Technology, CAS (China)


Published in SPIE Proceedings Vol. 5558:
Applications of Digital Image Processing XXVII
Andrew G. Tescher, Editor(s)

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