50 search results - page 5 / 10 » DCT quantization noise in compressed images |
IWDW
2005
Springer
14 years 3 months ago
2005
Springer
Abstract. In this paper, the security of Dither Modulation Quantization Index Modulation schemes for digital images is analyzed. Both pixel and DCT coefficient quantization schemes...
TIP
1998
13 years 9 months ago
1998
Abstract— This correspondence addresses the use of a joint sourcechannel coding strategy for enhancing the error resilience of images transmitted over a binary channel with addit...
DFT
2005
IEEE
14 years 3 months ago
2005
IEEE
In this paper, we propose a system-level error tolerance scheme for systems where a linear transform is combined with quantization. These are key components in multimedia compress...
VCIP
2003
13 years 11 months ago
2003
Two types of coders dominate the field of video compression research today: well-established hybrid coders, that are in the core of all MPEG and H.26X standards, and emerging thr...
ICIP
2009
IEEE
14 years 10 months ago
2009
IEEE
In this paper, following the Compressed Sensing (CS) paradigm, we study the problem of recovering sparse or compressible signals from uniformly quantized measurements. We present ...