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GLOBECOM
2006
IEEE
14 years 3 months ago
Adaptive Coding and Modulation for Hybrid ARQ Systems over Partially Observable Nakagami-m Fading Channels
— We study coding and modulation rate adaptation problem for HARQ systems with partially observable state from cross-layer viewpoint. The rate of convolutionally coded MQAM is ad...
Ashok K. Karmokar, Vijay K. Bhargava
ICIP
2006
IEEE
14 years 11 months ago
Methods to Improve Coding Efficiency of SP Frames
SP-frame is a new picture type supported by H.264, and supports functions such as rate-switching and random-access. In this paper, we investigate several complementary methods to ...
Wai-tian Tan, Bo Shen
ICIP
2001
IEEE
14 years 11 months ago
Rate allocation criteria in source-channel coding of images
In progressive joint source-channel coding of images, experiments show that optimizing rate allocation according to PSNR criteria and according to rate criteria produce essentiall...
Ahmadreza Hedayat, Aria Nosratinia
ICIP
1998
IEEE
14 years 11 months ago
Simultaneous Optimal Boundary Encoding and Variable-Length Code Selection
This paper describes e cient and optimal encoding and representation of object contours. Contours are approximated by connected second-order spline segments, each de ned by three ...
Gerry Melnikov, Guido M. Schuster, Aggelos K. Kats...
CVPR
2010
IEEE
14 years 6 months ago
Coded Exposure Imaging for Projective Motion Deblurring
We propose a method for deblurring of spatially variant object motion. A principal challenge of this problem is how to estimate the point spread function (PSF) of the spatially va...
Yu-Wing Tai, Naejin Kong, Stephen Lin, Sung Yong S...