1078 search results - page 148 / 216 » DB |
IWDW
2007
Springer
14 years 4 months ago
2007
Springer
Abstract. In this paper, we propose a practical real-time video watermarking scheme for downscaling attack. We embed watermark into an arbitrary size of a host video and extract it...
PCM
2007
Springer
14 years 4 months ago
2007
Springer
Abstract. In many rate control models, a uniform weighted distortion has been assumed; that is, the DCT coefficients of the motioncompensation difference frames (residues) conform...
GLOBECOM
2006
IEEE
14 years 4 months ago
2006
IEEE
— We present a field programmable gate array (FPGA) implementation of a turbo-like decoder for a serially concatenated pulse-position modulation (SCPPM) code. NASA developed thi...
GLOBECOM
2006
IEEE
14 years 4 months ago
2006
IEEE
— ABBA codes, a class of quasi-orthogonal space-time block codes (STBC) proposed by Tirkkonen et al., have been studied extensively for various applications. Yuen et al. have rec...
ICMCS
2006
IEEE
14 years 4 months ago
2006
IEEE
For improvement of coding efficiency, the H.264 video coding standard uses new coding tools, such as variable block size, quarter-pixel-accuracy motion estimation, multiple refere...