| Presentation | 1997/12/19 2-Dimensional Optimum Frequency Band Partition With Human Visual Sensitivity for Subband Image Coding Masashi KAMEDA, Kohhei OHTAKE, Makoto MIYAHARA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a 2-dimensional optimum frequency band partition method for subband image coding considering perceptual properties. Based on a set of the frequency pieces called the band blocks in 2-dimensional frequency domain, we propose the optimum band partition method which improves the quantization noise power weighted by the human visual sensitivity based on the band blocks. And, we show a filter bank configuration realizing it. Secondly, we derive the optimum band partition pattern in 2-dimensional frequency domain inherent to an input natural image. Finally, it is shown that the optimum band partition considering the human visual sensitivity is better than DCT which is used in JPEG coding system at the higher entropy rate using the PQS (Picture Quality Scale) as an evaluation measure of the picture quality considering perceptual properties. It is clarified that the proposed band partition method is effecitive. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | subband coding / quantization noise power / human visual sensitivity / PQS (Picture Quality Scale) |
| Paper # | CQ97-65 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 1997/12/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 2-Dimensional Optimum Frequency Band Partition With Human Visual Sensitivity for Subband Image Coding |
| Sub Title (in English) | |
| Keyword(1) | subband coding |
| Keyword(2) | quantization noise power |
| Keyword(3) | human visual sensitivity |
| Keyword(4) | PQS (Picture Quality Scale) |
| 1st Author's Name | Masashi KAMEDA |
| 1st Author's Affiliation | Graduate School of Information Science, Japan Advanced Institute of Science and Technology (JAIST)() |
| 2nd Author's Name | Kohhei OHTAKE |
| 2nd Author's Affiliation | College of Engineering, Hosei University |
| 3rd Author's Name | Makoto MIYAHARA |
| 3rd Author's Affiliation | Graduate School of Information Science, Japan Advanced Institute of Science and Technology (JAIST) |
| Date | 1997/12/19 |
| Paper # | CQ97-65 |
| Volume (vol) | vol.97 |
| Number (no) | 457 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |