Sciweavers

45 search results - page 2 / 9
» Video Compression Using Integer DCT
Sort
View
ICIAP
2005
ACM
14 years 5 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
ICPR
2000
IEEE
14 years 6 months ago
Fast Scene Change Detection Using Direct Feature Extraction from MPEG Compressed Videos
In order to process video data efficiently, a video segmentation technique through scene change detection must be employed. Many of advanced video applications require manipulatio...
Young-Min Kim, Sung Woo Choi, Seong-Whan Lee
VCIP
2000
13 years 6 months 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
ISCAS
2007
IEEE
117views Hardware» more  ISCAS 2007»
13 years 11 months ago
Context-based Arithmetic Coding Reexamined for DCT Video Compression
—This paper presents a new context modeling technique for arithmetic coding of DCT coefficients in video compression. A key feature of the new technique is the inclusion of all p...
Li Zhang, Xiaolin Wu, Ning Zhang, Wen Gao, Qiang W...
ICIP
1999
IEEE
14 years 6 months ago
Automatic Caption Localization in Compressed Video
?We present a method to automatically localize captions in JPEG compressed images and the I-frames of MPEG compressed videos. Caption text regions are segmented from background ima...
Yu Zhong, HongJiang Zhang, Anil K. Jain