Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Taizo Suzuki"'
Publikováno v:
IEEE Access, Vol 10, Pp 20964-20977 (2022)
Block frames called directional analytic discrete cosine frames (DADCFs) are proposed for sparse image representation. In contrast to conventional overlapped frames, the proposed DADCFs require a reduced amount of 1) computational complexity, 2) memo
Externí odkaz:
https://doaj.org/article/658b9a8bd919450c9200f1424517fb1b
Autor:
Taizo Suzuki, Liping Huang
Publikováno v:
IEEE Transactions on Image Processing. 31:6072-6082
Codecs using spectral-spatial transforms efficiently compress raw camera images captured with a color filter array (CFA-sampled raw images) by changing their RGB color space into a decorrelated color space. This study describes two types of spectral-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f8a6582db66ccb88f19a0bbaf2a233
https://doi.org/10.1109/tip.2022.3205470
https://doi.org/10.1109/tip.2022.3205470
Publikováno v:
IEEE Signal Processing Letters. 29:1744-1748
This letter proposes a fast implementation of the regularity-constrained discrete sine transform (R-DST). The original DST \textit{leaks} the lowest frequency (DC: direct current) components of signals into high frequency (AC: alternating current) su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c567f2f8b057980a615dcce3dd0604af
https://tsukuba.repo.nii.ac.jp/records/2005667
https://tsukuba.repo.nii.ac.jp/records/2005667
Autor:
Taizo Suzuki, Kosuke Shimizu
Publikováno v:
IEEE Transactions on Information Forensics and Security. 16:4895-4908
We propose a finely tunable JPEG format-compliant perceptual encryption (FE) with two novel strategies: (i) bitcuboid-based encryption (BE) and (ii) exception-free signed binarization (ESB). BE is an intra- and inter-bitplane encryption technique tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6237d058acd65f5fc80301ed1a475d37
https://doi.org/10.1109/tifs.2021.3113510
https://doi.org/10.1109/tifs.2021.3113510
Autor:
Liping Huang, Taizo Suzuki
Publikováno v:
ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a78a19a5d039f2d1d8f5568d7bb171a6
https://doi.org/10.1109/icassp43922.2022.9747874
https://doi.org/10.1109/icassp43922.2022.9747874
Autor:
Taizo Suzuki
Publikováno v:
IEEE Transactions on Image Processing. 29:433-444
Spectral-spatial transforms (SSTs) change a raw camera image captured using a color filter array (CFA-sampled image) from an RGB color space composed of red, green, and blue components into a decorrelated color space such as YDgCbCr or YDgCoCg color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2b8a3baf57f50bf97376c54f8c96323
https://doi.org/10.1109/tip.2019.2928124
https://doi.org/10.1109/tip.2019.2928124
Autor:
Taizo Suzuki, Seisuke Kyochi
Publikováno v:
IEEE Signal Processing Letters. 27:466-470
A raw image captured by a color filter array (CFA), such as a Bayer pattern, is usually compressed after demosaicing with some processings (denoising, deblurring, tone-mapping, and so on). However, since photographers, designers, and high-end users p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b91a94ec8b18104f5dafbf81938a5641
https://doi.org/10.1109/lsp.2020.2977500
https://doi.org/10.1109/lsp.2020.2977500
Block frames called directional analytic discrete cosine frames (DADCFs) are proposed for sparse image representation. In contrast to conventional overlapped frames, the proposed DADCFs require a reduced amount of 1) computational complexity, 2) memo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ea8374dc7ae9e2170f827b80ec02aff
http://arxiv.org/abs/2112.12407
http://arxiv.org/abs/2112.12407
Publikováno v:
PCS
A recent attention of JPEG format-compliant encryptions has been concentrated to randomize the specific syntaxes of JPEG file interchange format (JFIF) or to flip the signs of quantized discrete cosine transform (QDCT) coefficients. Although the rand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61acb8a5d4727a915b26c618dce73d2c
https://doi.org/10.1109/pcs50896.2021.9477508
https://doi.org/10.1109/pcs50896.2021.9477508
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 29:1438-1447
This paper redefines a block-lifting structure of $M$ -channel ( $M\in \mathbb {N}$ , $M\geq 2$ ) filter banks and proposes an efficient reversible nonexpansive convolution at the boundaries for lossy-to-lossless image coding. The previous studies le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d36e9bfc73a46e033c76f133705e8f17
https://doi.org/10.1109/tcsvt.2018.2849101
https://doi.org/10.1109/tcsvt.2018.2849101