A real-time digital VCR encode/decode and MPEG-2 decode LSI implemented on a dual-issue RISC processor

Mohri, A.; Yamada, Akira; Yoshida, Yuki; Sato, H.; Takata, Hitoshi; Nakakimura, K.; Hashizume, Makoto; Shimotsuma, Y.; Tsuchihashi, K.

doi:10.1109/4.772415

Cited by 4 publications

(1 citation statement)

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“…When it comes to the high-speed data compression, H.263 has been recognized as a more powerful data compresseion standard than the MPEGs, i.e., MPEG2, MPEG4, etc., [8]. The combination of DCT (discrete cosine transform), run-length coding and Huffman coding has brought the success to H.263 and MPEG, [3], [7]. These variable length approaches enjoys a higher compression rate than the fixed-rate or fixed-length methods, e.g., [1], [9], based on the theoretical analysis [6].…”

Section: Introductionmentioning

confidence: 99%

Codec Design for Variable-Length to Fixed-Length Data Conversion for H.263

Wang¹,

Sung²,

Li³

2006

2006 International Conference on Intelligent Information Hiding and Multimedia

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Abstract-A codec (encoder-decoder) design for interfacing variable-length and fixed-length data conversion is proposed in this paper. The poor memory efficiency of the variable-length compression approach can be avoided while its advantages can be preserved. The introduction of the proposed codec converts the variable-length symbols into fixed-length packets which can be hardwaredly and parallelly processing without waiting for any other information, which indicates the decoding process is context-free. The proposed codec encodes extra symbols in the redundant bits of the padding bits of the fixed-length packets. This novel encoding scheme relaxes the intrinsic poor bit rate of the traditional fixed-length data compression.

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Section: Introductionmentioning

confidence: 99%