Integer DCT Based on Direct-Lifting of DCT-IDCT for Lossless-to-Lossy Image Coding
A discrete cosine transform (DCT) can be easily implemented in software and hardware for the JPEG and MPEG formats. However, even though some integer DCTs (IntDCTs) for lossless-to-lossy image coding have been proposed, such transform requires redesigned devices. This paper proposes a hardware-frien...
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| Veröffentlicht in: | IEEE transactions on image processing 2010-11, Vol.19 (11), p.2958-2965 |
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| container_title | IEEE transactions on image processing |
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| creator | Suzuki, Taizo Ikehara, Masaaki |
| description | A discrete cosine transform (DCT) can be easily implemented in software and hardware for the JPEG and MPEG formats. However, even though some integer DCTs (IntDCTs) for lossless-to-lossy image coding have been proposed, such transform requires redesigned devices. This paper proposes a hardware-friendly IntDCT that can be applied to both lossless and lossy coding. Our IntDCT is implemented by direct-lifting of DCT and inverse DCT (IDCT). Consequently, any existing DCT device can be directly applied to every lifting block. Although our method requires a small side information block (SIB), it is validated by its application to lossless-to-lossy image coding. |
| doi_str_mv | 10.1109/TIP.2010.2051867 |
| format | Article |
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| subjects | Applied sciences Biomedical imaging Blocking Computer programs Decoding Devices Direct-lifting Discrete cosine transforms Discrete transforms Discrete wavelet transforms Exact sciences and technology Hardware Hoisting Image coding Image processing Information, signal and communications theory integer discrete cosine transform (IntDCT) Integers JPEG encoders-decoders lossless-to-lossy image coding Miscellaneous MPEG encoders Pulse modulation side information block (SIB) Signal processing Space technology Telecommunications and information theory Transform coding |
| title | Integer DCT Based on Direct-Lifting of DCT-IDCT for Lossless-to-Lossy Image Coding |
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