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Integer fast lapped transforms based on direct-lifting of DCTs for lossy-to-lossless image coding
http://hdl.handle.net/2241/120661
http://hdl.handle.net/2241/120661a652a037-430e-4018-a041-370cd7e5156f
名前 / ファイル | ライセンス | アクション |
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EJIVP_2013-1.pdf (493.0 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2014-02-03 | |||||
タイトル | ||||||
タイトル | Integer fast lapped transforms based on direct-lifting of DCTs for lossy-to-lossless image coding | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Suzuki, Taizo
× Suzuki, Taizo× Ikehara, Masaaki |
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著者別名 |
鈴木, 大三
× 鈴木, 大三 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The discrete cosine transforms (DCTs) have found wide applications in image/video compression (image coding). DCT-based lapped transforms (LTs), called fast LTs (FLTs), overcome blocking artifacts generated at low bit rate image coding by DCT while keeping fast implementation. This paper presents a realization of more effective integer FLT (IntFLT) for lossy-to-lossless image coding, which is unified lossless and lossy image coding, than the conventional IntFLTs. It is composed of few operations and direct application of DCTs to lifting blocks, called direct-lifting of DCTs. Since the direct-lifting can reuse any existing software/hardware for DCTs, the proposed IntFLTs have a great potential for fast implementation which is dependent on the architecture design and DCT algorithms. Furthermore, the proposed IntFLTs do not need any side information unlike integer DCT (IntDCT) based on direct-lifting as our previous work. Moreover, they can be easily extended to larger size which is recently required as in DCT for the standard H.26x series. As a result, the proposed method shows better lossy-to-lossless image coding than the conventional IntFLTs. | |||||
書誌情報 |
EURASIP journal on image and video processing 巻 2013, 号 1, 発行日 2013-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1687-5281 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1186/1687-5281-2013-65 | |||||
権利 | ||||||
権利情報 | © 2013 Suzuki and Ikehara; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | Springer International Publishing | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/120661 | |||||
識別子タイプ | HDL |