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Rate Distortion Optimized Image compression using wedgelets
Image compression
Introduction
Need of Compression
The principles behind compression
Typical Image Coder
Typical image coder
JPEG : DCT-Based Image Coding Standard
Wavelets and Image Compression
What is a Wavelet Transform ?
Why Wavelet-based Compression?
Wedgelets
The Wedgelet Dictionary
Wedgelet Estimation
Compression via Edge Cartoon
The image = {edge cartoon} + {texture}
f(x,y) = c(x,y) + t(x,y)
Estimation and Compression of the Edge Cartoon
Improving the Compression Scheme
W-SFQ: Geometric Modeling with Rate-Distortion Optimization
The SFQ Compression Framework
SFQ fundamentals
Phase I
SFQ tree-pruning: Phase II
Wedgelets for W-SFQ
Wedgelet parameterization
Transmitting wedgelets
Advanced Geometric Modeling
Conclusion
APPROXIMATION AND COMPRESSION OF PIECEWISE SMOOTH IMAGES
USING A WAVELET/WEDGELET GEOMETRIC MODEL
Justin K. Romberg, Michael B. Wakin, and Richard G. Baraniuk
RATE-DISTORTION OPTIMIZED IMAGE COMPRESSION USING WEDGELETS
Michael Wakin, Justin Romberg, Hyeokho Choi, Richard Baraniuk
Edgelets & Wedgelets
Software & Applications
David Donoho
Minh N. Do y , Pier Luigi Dragotti y , Rahul Shukla y , and Martin Vetterli yx
Justin K. Romberg, Michael B. Wakin, and Richard G. Baraniuk
MULTISCALE WEDGELET IMAGE ANALYSIS:
FAST DECOMPOSITIONS AND MODELING
Justin K. Romberg, Michael Wakin, Richard Baraniuk