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ICIP
2002
IEEE
14 years 6 months ago
DCT approximation for low bit rate coding using a conditional transform
A transform approximation is explored for speeding up the software compression of images and video. It is used to replace the regular DCT whenever only few DCT coefficients are ac...
Ricardo L. de Queiroz
ICIP
2002
IEEE
14 years 6 months ago
Reduced DCT approximations for low bit rate coding
Transform approximations are explored for speeding up the software compression of images and video. Faster approximations are used to replace the regular DCT whenever only few DCT...
Ricardo L. de Queiroz
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
2000
IEEE
13 years 9 months ago
Low-Complexity Scalable DCT Image Compression
We have developed a scalable image compression scheme with a good performance-complexity trade-off. Like JPEG, it is based on the 8 × 8 block discrete cosine transform (DCT), but...
René J. van der Vleuten, Richard P. Kleihor...
ICIP
2000
IEEE
14 years 6 months ago
Scalable Image Coder Mixing DCT and Triangular Meshes
In this paper a new very low bit rate scalable encoding principle is presented. It is based on hierarchical triangular mesh encoding combined with triangle based DCT coding. Affin...
Laurent Demaret, Guillaume Robert, Nathalie Lauren...