Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Chi-Keung Fong"'
Autor:
Sam Kwong, Xuekai Wei, Mingliang Zhou, Wilson Y. F. Yuen, Shiqi Wang, P.H.W. Wong, Chi-Keung Fong
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 30:4648-4662
High dynamic range (HDR) video compression technology, which is capable of delivering a wider range of luminance and a larger colour gamut than standard dynamic range (SDR) technology, has been widely used in recent years in many fields, including in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::224f0f3d3e432789d70ebb8cfe25537b
https://doi.org/10.1109/tcsvt.2019.2959807
https://doi.org/10.1109/tcsvt.2019.2959807
Autor:
Xuekai Wei, Sam Kwong, Wei Gao, Chi-Keung Fong, Peter H. W. Wong, Mingliang Zhou, Wilson Y. F. Yuen, Shiqi Wang
Publikováno v:
IEEE Transactions on Multimedia. 21:1921-1933
In this paper, we propose a coding tree unit (CTU)-level rate control scheme from the perspective of SSIM-based rate-distortion optimization to improve the coding efficiency. First, we establish the SSIM-based rate-distortion model based on the divis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::764f269e82aed139a29fced9d143ab9e
https://doi.org/10.1109/tmm.2019.2895281
https://doi.org/10.1109/tmm.2019.2895281
Publikováno v:
IEEE Transactions on Broadcasting. 65:94-108
Different from the conventional calculative methods, a learning-based initial quantization parameter (LIQP) method is proposed in this paper to improve rate control of high efficiency video coding (H.265). First, the framework for initial quantizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec3bb503fe8f0fe460aa08f88df70d60
https://doi.org/10.1109/tbc.2018.2865647
https://doi.org/10.1109/tbc.2018.2865647
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 27:326-336
A method to derive an order-2 N integer cosine transform is presented in this paper. The proposed transform has orthogonal basis vectors and inherits the recursive structure from the discrete cosine transform such that an order-2 N transform can be d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea60296f90e38b883adca149595a009a
https://doi.org/10.1109/tcsvt.2015.2513664
https://doi.org/10.1109/tcsvt.2015.2513664
Autor:
Chi-Keung Fong, Wai-Kuen Cham
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 22:844-854
Existing video coding standards use only 4 × 4 and 8 × 8 transforms for energy compaction. Recent research has found that the use of larger transforms, such as 16 × 16, together with the existing transforms can improve coding performance especiall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c234e9ab0e8a70edb44fb7fb3bfe60
https://doi.org/10.1109/tcsvt.2011.2177938
https://doi.org/10.1109/tcsvt.2011.2177938
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 19:1462-1474
In this paper, the spatial properties of high-definition (HD) videos are investigated based on a large set of HD video sequences. Compared with lower resolution videos, the prediction errors of HD videos have higher correlation. Hence, we propose usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95c22ebfdca5f23d015f92cee472de4b
https://doi.org/10.1109/tcsvt.2009.2026792
https://doi.org/10.1109/tcsvt.2009.2026792
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 18:735-745
In this paper, we propose a fast full-pel variable block size motion estimation algorithm called fast Walsh search in variable block size (FWS-VBS). FWS-VBS employs a new error measurement defined in Walsh-Hadamard domain, which is called partial sum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a4c110e13de29a268bbe77cfcea0bc6
https://doi.org/10.1109/tcsvt.2008.918790
https://doi.org/10.1109/tcsvt.2008.918790
Autor:
Wai-Kuen Cham, Chi-Keung Fong
Publikováno v:
ICIP
Transform is a very important coding tool in video coding. Simple order-16 Integer Transform, proposed in this paper, is a simple, low computational complexity transform but has high coding efficiency. It is simpler than other order-16 transforms pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55698ad37a625c24af61bfafe5792d14
https://doi.org/10.1109/icip.2010.5651737
https://doi.org/10.1109/icip.2010.5651737
Publikováno v:
ISCAS
Simplified order-16 integer cosine transform (ICT) has been proved to be an efficient coding tool especially for high-definition (HD) video coding and is much simpler than ICT and discrete cosine transform (DCT). To further reduce the computational c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::221c26179b755d90a18178aecb0bad67
https://doi.org/10.1109/iscas.2007.378390
https://doi.org/10.1109/iscas.2007.378390
Publikováno v:
Proceedings of the 17th International Conference on Pattern Recognition, 2004. ICPR 2004..
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e193dde71b4ad449a61ce0592c0ac77
https://doi.org/10.1109/icpr.2004.1334605
https://doi.org/10.1109/icpr.2004.1334605