44 search results - page 4 / 9 » DCT approximation for low bit rate coding using a conditiona... |
ICIP
2000
IEEE
14 years 1 days ago
2000
IEEE
Efficient compression algorithms generally use wavelet transforms. They try to exploit all the signal dependencies that can appear inside and across the different sub-bands of th...
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
In this study we propose a new approach for selective encryption in the Huffman coding of the Discrete Cosine Transform (DCT) coefficients using the Advanced Encryption Standard (...
PAMI
2007
13 years 7 months ago
2007
—This paper presents a novel iris coding method based on differences of discrete cosine transform (DCT) coefficients of overlapped angular patches from normalized iris images. Th...
ISCAS
2007
IEEE
14 years 1 months ago
2007
IEEE
—In this paper, we investigate image compression using 2D Dual-tree Discrete Wavelet Transform (DDWT), which is an overcomplete transform with direction-selective basis functions...
PCM
2010
Springer
13 years 5 months ago
2010
Springer
The H.264/AVC video coding standard performs inter prediction using variable block sizes to improve coding efficiency. Since we predict not only the motion of the homogeneous regio...