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ICIP
2005
IEEE
15 years 11 months ago
Approximation power of directionlets
In spite of the success of the standard wavelet transform (WT) in image processing, the efficiency of its representation is limited by the spatial isotropy of its basis functions ...
Vladan Velisavljevic, Baltasar Beferull-Lozano, Ma...
64
Voted
ICASSP
2008
IEEE
15 years 4 months ago
Image interpolation with directionlets
We present a novel directionally adaptive image interpolation based on a multiple-direction wavelet transform, called directionlets. The algorithm uses directionlets to efficient...
Vladan Velisavljevic, Raphael Coquoz
63
Voted
ICIP
2005
IEEE
15 years 11 months ago
Video compression using structural flow
This paper proposes a new technique in wavelet video compression that exploits the spatiotemporal regularity of the video. A sequence of frames is said to be regular along the dire...
Orkun Alatas, Omar Javed, Mubarak Shah
FPGA
2001
ACM
152views FPGA» more  FPGA 2001»
15 years 2 months ago
A pipelined architecture for partitioned DWT based lossy image compression using FPGA's
Discrete wavelet transformations (DWT) followed by embedded zerotree encoding is a very efficient technique for image compression [2, 5, 4]. However, the algorithms proposed in l...
Jörg Ritter, Paul Molitor
63
Voted
ICIP
2001
IEEE
15 years 11 months ago
The orientation adaptive lapped biorthogonal transform for efficient image coding
A lapped biorthogonal transform adapted for local directionality of an image is proposed. The proposed transform consists of overlapping basis functions and non-overlapping basis ...
Toshihsa Tanaka, Y. Yamashita