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ICIP
2007
IEEE
13 years 10 months ago
2007
IEEE
In our previous work [1], we proposed a construction of critically sampled perfect reconstruction transforms with directional vanishing moments (DVMs) imposed in the corresponding...
ICASSP
2010
IEEE
13 years 6 months ago
2010
IEEE
Inspired by recent theoretical advances in compressive sensing (CS), we propose a new framework that combines the classical local discrete cosine transform used in image compressi...
TCSV
2008
13 years 6 months ago
2008
A quality constrained compression algorithm based on Discrete Wavelet Transform (DWT) is proposed. The spatial-frequency decomposition property of DWT provides possibility for not...
ICIP
2008
IEEE
14 years 8 months ago
2008
IEEE
In this paper, we analyze the formation of blocking artifacts as a result of quantization of the discrete cosine transform (DCT) coefficients. These artifacts are known to be the ...
ICASSP
2007
IEEE
14 years 27 days ago
2007
IEEE
Flickering is a temporal visual artifact that affects compressed video. It is prominent in intra-frame video coders and is largely the result of content variations and quantizatio...