218 search results - page 28 / 44 » Directional Discrete Cosine Transforms for Image Coding |
DCC
2002
IEEE
14 years 6 months ago
2002
IEEE
In this paper we propose an algorithm for image recovery where completely lost blocks in an image/video-frame are recovered using spatial information surrounding these blocks. Our...
ICIP
2005
IEEE
14 years 8 months ago
2005
IEEE
This paper presents a novel Mod-4 steganographic method in discrete cosine transform (DCT) domain. A group of 2?2 quantized DCT coefficients (GQC) is selected as the valid embeddi...
JVCIR
2010
13 years 5 months ago
2010
Efficient representation of images usually leads to improvements in storage efficiency, computational complexity and performance of image processing algorithms. Efficient represe...
IPPS
2002
IEEE
13 years 11 months ago
2002
IEEE
Short vector SIMD instructions on recent microprocessors, such as SSE on Pentium III and 4, speed up code but are a major challenge to software developers. We present a compiler t...
VTC
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this paper, we characterize the achievable performance of a wavelet encoding-based videophone system, which further compresses and protects the wavelet-based video codec’s...