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| Presentation | 2007-12-13 14:45 The study of DCT/DST hybrid video coding with cross-prediction Atsuro Ichigaya, Yukihiro Nishida (NHK STRL)  CS2007-35 IE2007-118 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The coding methods like MPEG and JPEG divide picture into small blocks and transform them into orthogonal transform coefficients, e.g. the discrete cosine transform (DCT). It is easy to be able to do an adaptive video quality control according to the signal by changing the compressibility at every the block. However, the compression distortion appears as block artifacts. DCT relates to the discrete Fourier transform (DFT) and discrete sine transform (DST). DFT consists of DCT and DST. In this paper, we describe process of causing block artifacts on DCT coding with quantization and propose a new coding way using DCT and DST both. The method hardly causes block distortion by mutual prediction. This method encodes two separated pictures as a bayer structure. One separated picture is encoded by DCT coding with quantization and the reconstructed process predicts another picture by Chebyshev interpolation. DST coding with quantization encodes residual prediction signal. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | block distortion / DCT / DST / Chebyshev interpolation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 380, IE2007-118, pp. 31-37, Dec. 2007. | |
| Paper # | IE2007-118 | |
| Date of Issue | 2007-12-06 (CS, IE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CS2007-35 IE2007-118 |
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| Conference Information | |
| Committee | IE IPSJ-AVM CS ITE-BCT |
| Conference Date | 2007-12-13 - 2007-12-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image coding, Communications and Stream Technologies, etc. |
| Paper Information | |
| Registration To | IE |
| Conference Code | 2007-12-IE-IPSJ-AVM-CS-ITE-BCT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The study of DCT/DST hybrid video coding with cross-prediction |
| Sub Title (in English) | |
| Keyword(1) | block distortion |
| Keyword(2) | DCT |
| Keyword(3) | DST |
| Keyword(4) | Chebyshev interpolation |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Atsuro Ichigaya |
| 1st Author's Affiliation | NHK Science & Technical Research Laboratories (NHK STRL) |
| 2nd Author's Name | Yukihiro Nishida |
| 2nd Author's Affiliation | NHK Science & Technical Research Laboratories (NHK STRL) |
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| Speaker | Author-1 |
| Date Time | 2007-12-13 14:45:00 |
| Presentation Time | 25 minutes |
| Registration for | IE |
| Paper # | CS2007-35, IE2007-118 |
| Volume (vol) | vol.107 |
| Number (no) | no.379(CS), no.380(IE) |
| Page | pp.31-37 |
| #Pages | 7 |
| Date of Issue | 2007-12-06 (CS, IE) |
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