Sciweavers

1542 search results - page 129 / 309
» A compressive beamforming method
Sort
View
3DPVT
2006
IEEE
186views Visualization» more  3DPVT 2006»
16 years 13 days ago
Resolution Scalable Coding and Region of Interest Access with Three-Dimensional SBHP Algorithm
A low-complexity three-dimensional image compression algorithm based on wavelet transforms and set-partitioning strategy is presented. The Subband Block Hierarchial Partitioning (...
Ying Liu, William A. Pearlman
ICMCS
2006
IEEE
110views Multimedia» more  ICMCS 2006»
16 years 12 days ago
A Video Scrambling Scheme Applicable to Local Region without Data Expansion
Recently, several scrambling techniques have been proposed for video digitally archived. These methods realize efficient processing by partial encryption on MPEG compressed data ...
Makoto Takayama, Kiyoshi Tanaka, Akio Yoneyama, Ya...
ISCAS
2005
IEEE
125views Hardware» more  ISCAS 2005»
15 years 12 months ago
A novel algorithm of spatial scalability for scrambled video
Although many researches have investigated transparent scrambling video techniques, an issue of which transcoding relates to downsizing scrambled video without unscrambling has ha...
YuanZhi Zou, Wen Gao
DCC
2010
IEEE
15 years 11 months ago
Modeling the Quantization Staircase Function
Quantization plays a central role in data compression. In speech systems, vector quantizers are used to compress speech parameters. In video systems, scalar quantizers are used to...
Salman Aslam, Aaron F. Bobick, Christopher F. Barn...
DFT
2002
IEEE
128views VLSI» more  DFT 2002»
15 years 11 months ago
Matrix-Based Test Vector Decompression Using an Embedded Processor
This paper describes a new compression/decompression methodology for using an embedded processor to test the other components of a system-on-a-chip (SoC). The deterministic test v...
Kedarnath J. Balakrishnan, Nur A. Touba