Publications related to Image Coding of 3D Volume Using Wavelet Transform for Fast Retrieval of 2D Images

Continuous Wavelet Transform Ridge Extraction for Spectral Interferometry Imaging

The combination of wavelength multiplexing and spectral interferometry allows for the encoding of multidimensional information and its transmission over a mono-dimensional channel; for example, measurements of a surface's topography acquired through a mono ...

SPIE2005

The Contourlet Transform: An Efficient Directional Multiresolution Image Representation

Martin Vetterli, Minh Do

The limitations of commonly used separable extensions of one-dimensional transforms, such as the Fourier and wavelet transforms, in capturing the geometry of image edges are well known. In this paper, we pursue a "true" two-dimensional transform that can c ...

2005

Directionlets

Vladan Velisavljevic

Efficient representation of geometrical information in images is very important in many image processing areas, including compression, denoising and feature extraction. However, the design of transforms that can capture these geometrical features and repre ...

EPFL2005

Wavelet Transform Codec for Fast Retrieval of Slices of 3D objects

Vijayaraghavan Thirumalai

We propose a method to encode a 3D magnetic resonance image data and a decoder in such way that fast access to any 2D image is possible by decoding only the corresponding information from each subband image and thus provides minimum decoding time. This wil ...

2005

Generalized Biorthogonal Daubechies Wavelets

Michaël Unser, Thierry Blu, Cédric René Jean Vonesch

We propose a generalization of the Cohen-Daubechies-Feauveau (CDF) and 9⁄7 biorthogonal wavelet families. This is done within the framework of non-stationary multiresolution analysis, which involves a sequence of embedded approximation spaces generated by ...

SPIE2005

Wavelets on the 2-Hyperboloid

Pierre Vandergheynst, Iva Bogdanova Vandergheynst

We build wavelets on the 2-Hyperboloid. First, we define dilations on the hyperboloid through conic projection. Then, incorporating hyperbolic motions belonging to

SO_0(1,2)

, we define a family of hyperbolic wavelets. The continuous wavelet transform (CW ...

2004

Extended Depth-of-Focus for Multi-Channel Microscopy Images: A Complex Wavelet Approach

Michaël Unser, Dimitri Nestor Alice Van De Ville, Daniel Sage

Microscopy imaging often suffers from limited depth-of-focus. However, the specimen can be “optically sectioned” by moving the object along the optical axis; different areas appear in focus in different images. Extended depth-of-focus is a fusion algorithm ...

IEEE2004

Extended Depth-of-Field for Color Images in Light Microscopy: Image Fusion and 3D Visualization

Michaël Unser, Dimitri Nestor Alice Van De Ville, Niels Quack, Daniel Sage

Bright-field microscopy suffers from a relatively small depth-of-field. Typically, the specimen’s profile covers a range larger than the depth-of-field, and parts of the specimen that lie outside the object plane appear blurred. The specimen can be ‘scanne ...

2004

Guest Editorial: Wavelets in Medical Imaging

Michaël Unser

I. Introduction Wavelets are the result of collective efforts that recognized common threads between ideas and concepts that had been independently developed and investigated by distinct research communities. They provide a unifying framework for decompos ...

2003

Image security and processing in the JPEG 2000 compressed domain

Raphaël Grosbois

Digital images are becoming increasingly successful thanks to the development and the facilitated access to systems permitting their generation (i.e. camera, scanner, imaging software, etc). A digital image basically corresponds to a 2D discrete set of reg ...

EPFL2003

Image Coding of 3D Volume Using Wavelet Transform for Fast Retrieval of 2D Images

Graph Chatbot

Chat with Graph Search

Continuous Wavelet Transform Ridge Extraction for Spectral Interferometry Imaging

The Contourlet Transform: An Efficient Directional Multiresolution Image Representation

Directionlets

Wavelet Transform Codec for Fast Retrieval of Slices of 3D objects

Generalized Biorthogonal Daubechies Wavelets

Wavelets on the 2-Hyperboloid

Extended Depth-of-Focus for Multi-Channel Microscopy Images: A Complex Wavelet Approach

Extended Depth-of-Field for Color Images in Light Microscopy: Image Fusion and 3D Visualization

Guest Editorial: Wavelets in Medical Imaging

Image security and processing in the JPEG 2000 compressed domain

Directionlets

Wavelet Transform Codec for Fast Retrieval of Slices of 3D objects

Wavelets on the 2-Hyperboloid

Guest Editorial: Wavelets in Medical Imaging

Image security and processing in the JPEG 2000 compressed domain

The Contourlet Transform: An Efficient Directional Multiresolution Image Representation

Generalized Biorthogonal Daubechies Wavelets

Extended Depth-of-Focus for Multi-Channel Microscopy Images: A Complex Wavelet Approach

Extended Depth-of-Field for Color Images in Light Microscopy: Image Fusion and 3D Visualization

Continuous Wavelet Transform Ridge Extraction for Spectral Interferometry Imaging