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» On Transform Coding with Dithered Quantizers
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TIP
2008
84views more  TIP 2008»
13 years 7 months ago
Rate Bounds on SSIM Index of Quantized Images
Abstract--In this paper, we derive bounds on the structural similarity (SSIM) index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine ...
Sumohana S. Channappayya, Alan C. Bovik, Robert W....
ICASSP
2011
IEEE
12 years 11 months ago
Low-complexity predictive lossy compression of hyperspectral and ultraspectral images
Lossy compression of hyperspectral and ultraspectral images is traditionally performed using 3D transform coding. This approach yields good performance, but its complexity and mem...
Andrea Abrardo, Mauro Barni, Enrico Magli
ICMCS
2007
IEEE
121views Multimedia» more  ICMCS 2007»
14 years 2 months ago
Adaptive Spatial and Transform Domain FGS Coding
In inter-picture coding, block-based frequency transform is usually carried out on the predicted errors for each interblock to remove the spatial correlation among them. However, ...
Li Zhang, Xiangyang Ji, Wen Gao, Debin Zhao
ICC
1997
IEEE
162views Communications» more  ICC 1997»
13 years 12 months ago
Combined Source-Channel Coding for the Transmission of Still Images over a Code Division Multiple Access (CDMA) Channel
— This letter considers a combined source-channel coding scheme for image transmission over the uplink of a wireless IS-95 code division multiple access (CDMA) channel using disc...
E. V. H. Iun, Amir K. Khandani
ICMCS
2006
IEEE
100views Multimedia» more  ICMCS 2006»
14 years 1 months ago
Nonlinearly-Adapted Lapped Transforms for Intra-Frame Coding
The use of block transforms for coding intra-frames in video coding may preclude higher coding performance due to residual correlation across block boundaries and insufficient en...
Dan Lelescu