Sciweavers

616 search results - page 3 / 124
» DCT Based High Quality Image Compression
Sort
View
ICMCS
2000
IEEE
94views Multimedia» more  ICMCS 2000»
14 years 4 days ago
DCT Coefficient-Based Error Detection Technique for Compressed Video Stream
: In the process of transmission of digital encoded video bit streams over physical network, the data is corrupted by random bit errors, which has a several effect on the decoded v...
K. Bhattacharyya, H. S. Jamadagni
ISCAS
2008
IEEE
118views Hardware» more  ISCAS 2008»
14 years 2 months ago
Image sensor with focal plane change event driven video compression
— An image sensor with focal plane based hardware acceleration of video compression is presented. The 90×90 pixel CMOS image sensor provides in-pixel processing of intensity cha...
Yu M. Chi, Ralph Etienne-Cummings, Gert Cauwenberg...
ICIP
2009
IEEE
14 years 6 months ago
On the Use of Color Appearance Modeling for Efficient Compressed-Domain Image Enhancement
In this paper we propose a compressed-domain image enhancement algorithm based on color appearance modeling. We aim at providing an efficient high-quality JPEG color image enhancem...
Maria Chatzigiorgaki, Athanassios N. Skodras
DFT
2005
IEEE
109views VLSI» more  DFT 2005»
14 years 1 months ago
Hardware Testing For Error Tolerant Multimedia Compression based on Linear Transforms
In this paper, we propose a system-level error tolerance scheme for systems where a linear transform is combined with quantization. These are key components in multimedia compress...
In Suk Chong, Antonio Ortega
ICIP
2002
IEEE
14 years 9 months ago
DCT approximation for low bit rate coding using a conditional transform
A transform approximation is explored for speeding up the software compression of images and video. It is used to replace the regular DCT whenever only few DCT coefficients are ac...
Ricardo L. de Queiroz