Sciweavers

ICIP
2010
IEEE
13 years 9 months ago
Natural DCT statistics approach to no-reference image quality assessment
General-purpose no-reference image quality assessment approaches still lag the advances in full-reference methods. Most no-reference methods are either distortion specific (i.e. t...
Michele A. Saad, Alan C. Bovik, Christophe Charrie...
ICMCS
2009
IEEE
139views Multimedia» more  ICMCS 2009»
13 years 9 months ago
Compressed-domain temporal adaptation-resilient watermarking for H.264 video authentication
In this paper we present a DCT domain watermarking approach for H.264/AVC video coding standard. This scheme is resilient to compressed-domain temporal adaptation. A cryptographic...
Sharmeen Shahabuddin, Razib Iqbal, Shervin Shirmoh...
VCIP
2000
14 years 27 days ago
Optimal down-conversion in compressed DCT domain with minimal operations
A new down-conversion scheme in the DCT domain is presented, which can be used in decoders of DCT-compressed images and videos. The down-conversion in the transform domain general...
Myoung-Cheol Shin, In-Cheol Park
ICMCS
2006
IEEE
124views Multimedia» more  ICMCS 2006»
14 years 5 months ago
Face Recognition using Energy Probability in DCT Domain
In this paper, we propose a novel feature extraction method for face recognition. This method is based on Discrete Cosine Transform (DCT), Energy Probability (EP), and Linear Disc...
Jean Choi, Yun-Su Chung, Ki-Hyun Kim, Jang-Hee Yoo
ICIAP
2005
ACM
14 years 11 months ago
Half-Pixel Correction for MPEG-2/H.264 Transcoding
To improve video quality and coding efficiency, H.264/AVC [1] has adopted several newer coding tools such as a 4?4 integer DCT and a method for calculating half pixels than the pre...
Soon-young Kwon, Joo-Kyong Lee, Ki-Dong Chung
ICIP
2003
IEEE
15 years 1 months ago
New DCT-domain transcoding using split and merge technique
For the conventional downscaling video transcoder. the video server would be to first decompress the video, perform the downscaling operation in the pixel domain. and then recompr...
Kai-Tat Fung, Wan-Chi Siu