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» On Compression of Encrypted Video
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IH
1998
Springer
14 years 1 months ago
Steganography in a Video Conferencing System
We describe a steganographic system which embeds secret messages into a video stream. We examine the signal path which typically includes discrete cosine transformation (DCT) based...
Andreas Westfeld, Gritta Wolf
ICIP
2008
IEEE
14 years 4 months ago
Model-based compression of nonstationary landmark shape sequences
We have proposed a novel model-based compression technique for nonstationary landmark shape data extracted from video sequences. The main goal is to develop a technique for the co...
Samarjit Das, Namrata Vaswani
PCM
2001
Springer
195views Multimedia» more  PCM 2001»
14 years 2 months ago
A Motion Activity Descriptor and Its Extraction in Compressed Domain
A novel motion activity descriptor and its extraction from a compressed MPEG (MPEG-1/2) video stream are presented. The descriptor consists of two parts, a temporal descriptor and ...
Xinding Sun, Ajay Divakaran, B. S. Manjunath
ICMCS
2005
IEEE
126views Multimedia» more  ICMCS 2005»
14 years 3 months ago
IP Multicast Video Broadcasting System with User Authentication
This report describes a pay broadcasting system for the Internet. This system would enable tens of thousands of people to access an identical video stream simultaneously. In this ...
Hiroki Onishi, Takashi Satoh, Tetsutaro Uehara, Ka...
CIMAGING
2009
192views Hardware» more  CIMAGING 2009»
13 years 10 months ago
Compressive coded aperture imaging
Nonlinear image reconstruction based upon sparse representations of images has recently received widespread attention with the emerging framework of compressed sensing (CS). This ...
Roummel F. Marcia, Zachary T. Harmany, Rebecca Wil...