| Presentation | 2003/1/9 Optimum Word Length Allocation for Multipliers of Integer DCT Arata SUGIMORI, Munkhbaatar DELGERMAA, Masahiro IWAHASHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, the integer DCT(Int-DCT), which has the lifting structure and the rounding operation, is attracting many researcher's attention as an effective method for DCT based lossy/lossless unified coding. However, it it not analyzed enough how to express multiplier's word length as short as possible for attaining low computational load. Therefore, we defined a "image sensitivity" as an indicator of how the word length truncation of each coefficient affects quality of the decoded image. This report proposes a method for derive a "image sensitivity", from analyzing a spread process of the finite word length error in the Int-DCT. And, We evaluated the accuracy of the theoretical results, make a comparison the between that and the experiment value. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | integer transform / DTC / sensitivity / word length / rounding |
| Paper # | DSP2002-181,SAT2002-131,RCS2002-250 |
| Date of Issue |
| Conference Information | |
| Committee | DSP |
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| Conference Date | 2003/1/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimum Word Length Allocation for Multipliers of Integer DCT |
| Sub Title (in English) | |
| Keyword(1) | integer transform |
| Keyword(2) | DTC |
| Keyword(3) | sensitivity |
| Keyword(4) | word length |
| Keyword(5) | rounding |
| 1st Author's Name | Arata SUGIMORI |
| 1st Author's Affiliation | Department of Electrical Engineering,Nagaoka University of Technology() |
| 2nd Author's Name | Munkhbaatar DELGERMAA |
| 2nd Author's Affiliation | Department of Electrical Engineering,Nagaoka University of Technology |
| 3rd Author's Name | Masahiro IWAHASHI |
| 3rd Author's Affiliation | Department of Electrical Engineering,Nagaoka University of Technology |
| Date | 2003/1/9 |
| Paper # | DSP2002-181,SAT2002-131,RCS2002-250 |
| Volume (vol) | vol.102 |
| Number (no) | 544 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |