99 search results - page 17 / 20 » Adaptive image coding with perceptual distortion control |
MMSEC
2006
ACM
14 years 2 months ago
2006
ACM
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...
CODES
2005
IEEE
14 years 2 months ago
2005
IEEE
Sensor network applications face continuously changing environments, which impose varying processing loads on the sensor node. This paper presents an online control method which a...
ICIP
1999
IEEE
14 years 10 months ago
1999
IEEE
In this paper efficient modeling of VBR MPEG coded video sources is proposed by appropriately combining properties of frame and GOP layer signals. In particular, a Markov chain is...
ICMCS
2006
IEEE
14 years 2 months ago
2006
IEEE
In this paper, we study Skype and Google Talk, two widely used VoIP systems, and compare their perceptual speech quality with that of our proposed system using UDP packet traces c...
PR
2007
13 years 8 months ago
2007
In this paper, we present a learning-based image processing technique. We have developed a novel method to map high dynamic range scenes to low dynamic range images for display in...