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» Blur-Aware Image Downsampling
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CGF
2011
12 years 8 months ago
Blur-Aware Image Downsampling
Resizing to a lower resolution can alter the appearance of an image. In particular, downsampling an image causes blurred regions to appear sharper. It is useful at times to create...
Matthew Trentacoste, Rafal Mantiuk, Wolfgang Heidr...
ICIP
2009
IEEE
14 years 5 months ago
Image Compression With Downsampling And Overlapped Transform At Low Bit Rates
This paper proposes an image coding method based on adaptive downsampling which not only uses the pixel redundancy but also considers visual redundancy. At the encoder side, codec...
ICIP
2010
IEEE
13 years 2 months ago
Local two-channel critically sampled filter-banks on graphs
In this paper, we propose two-channel filter-bank designs for signals defined on arbitrary graphs. These filter-banks are local, invertible and critically sampled. Depending on th...
Sunil K. Narang, Antonio Ortega
ICASSP
2011
IEEE
12 years 8 months ago
Downsampling graphs using spectral theory
In this paper we present methods for downsampling datasets defined on graphs (i.e., graph-signals) by extending downsampling results for traditional N-dimensional signals. In par...
Sunil K. Narang, Antonio Ortega
ICASSP
2011
IEEE
12 years 8 months ago
Anti-aliasing filter for subpixel down-sampling based on frequency analysis
Nowadays, digital pictures are usually captured at very high resolution ranged up to 12 mega-pixels. Limited by low-resolution display, we have to shrink the image. Signal process...
Lu Fang, Ketan Tang, Oscar C. Au, Aggelos K. Katsa...