TY - GEN
T1 - Realization of lossless-to-lossy image coding compatible with JPEG standard by direct-lifting of DCT-IDCT
AU - Suzuki, Taizo
AU - Ikehara, Masaaki
PY - 2010/12/1
Y1 - 2010/12/1
N2 - A discrete cosine transform (DCT) can be easily implemented in software and hardware for the JPEG and MPEG formats. Recently, some integer DCTs (IntDCTs) for lossless-to-lossy image coding have been proposed, but they do not satisfy enough compatibility with JPEG standard. This paper proposes a realization of lossless-to-lossy image coding which has higher compatibility with it than the conventional IntDCTs. Our IntDCT is implemented by direct-lifting of DCT and inverse DCT (IDCT) and has high performance in lossless image coding compared with any IntDCT while keeping high compatibility with JPEG standard. Finally, our method is validated by its application to lossless-to-lossy image coding.
AB - A discrete cosine transform (DCT) can be easily implemented in software and hardware for the JPEG and MPEG formats. Recently, some integer DCTs (IntDCTs) for lossless-to-lossy image coding have been proposed, but they do not satisfy enough compatibility with JPEG standard. This paper proposes a realization of lossless-to-lossy image coding which has higher compatibility with it than the conventional IntDCTs. Our IntDCT is implemented by direct-lifting of DCT and inverse DCT (IDCT) and has high performance in lossless image coding compared with any IntDCT while keeping high compatibility with JPEG standard. Finally, our method is validated by its application to lossless-to-lossy image coding.
KW - Direct-lifting
KW - Integer discrete cosine transform (IntDCT)
KW - JPEG standard
KW - Lossless-to-lossy image coding
UR - http://www.scopus.com/inward/record.url?scp=78651064592&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651064592&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2010.5654181
DO - 10.1109/ICIP.2010.5654181
M3 - Conference contribution
AN - SCOPUS:78651064592
SN - 9781424479948
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 389
EP - 392
BT - 2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
T2 - 2010 17th IEEE International Conference on Image Processing, ICIP 2010
Y2 - 26 September 2010 through 29 September 2010
ER -