Graphic STI
logo EPFL
Text EPFL
english only
Biomedical Imaging Group
Imaging Web Demonstrations
BIG > Demos
CONTENTS

Home Page

News

Events

Seminars

People

Research

Publications

Tutorials and Reviews

Demos

Download Algorithms

Teaching

Student Projects

Intranet

Imaging Web Demonstration


Research Demos

Demonstrations showing some of our recent research results in biomedical image processing.

SURE-LET Wavelet Denoising (in color or in grayscale)
A new approach to color or grayscale image denoising.
Variational Levelset Spline
New formulation of level-set modeling the implicit as a continuous parametric function expressed on a B-spline basis.
Steerable Feature Detection
General approach for the design of 2-D feature detectors.
Extended Depth of Field using the Wavelet Transform
Download a program to perform an extended depth of focus of z-stack images to obtain in focus image.
Hex-splines
A novel spline family for hexagonal lattices.
Fractional Splines Wavelets
New wavelet bases with a continuously-varying order parameter and ontinuously-varying order and shift parameters.
Shifted Linear Interpolation
A new method for improving the quality linear interpolation, without any additional cost.
Computerized Tomography
Simulates the computerized tomography (Radon transform) and performs the reconstruction (filtered backprojection).
Comparison of interpolators
Compares the standard interpolation functions with the ones developped by the BIG.
Fractional Quincunx Wavelets
Shows the quincunx transform using filters of fractional order.
Resizing
The optimal algorithm to resize images.
Spline Warping of our staff
Bidirectional landmark warping of our staff.

Teaching Demos

Demonstrations illustrating some of the techniques described in the Image Processing course.

Edge Detection
Detects edges in an image.
Gradient
Compares several gradient algorithms.
Basis functions of the FFT, DCT and Haar Wavelet Transform
Local Normalization
Applies a local normalization to an image based on smooth operators.
Morphology Operators
Basic operators of morphology in binary and gray level images.
Smoothing Techniques
Compares several methods to smooth an image.
Template Matching
  • Matching with a 3*3 mask: Convoles an image with a 3*3 mask to edge detection
  • Matching with a model: Convoles an image with a template model to identity pattern.

Student Demos

Demonstrations designed by students working in our group.

Drop Shape Analysis
Aurélien Stalder
3D Deconvolution in Optical Microscopy
Pierre Besson
Denoising of Fractal-like images using Polyharmonic B-splines
Alex Prudencio
Filtering in Fourier Domain
Joy Anushini Ariarajah
Edge detection with a sub-pixel precision
Nicolas Pavillon
Complex Fractional Splines Wavelet
Florian Luisier
Virtual Microscope
Christophe Magnard
Diffusion Enhancing Methods
Alwyn Fernandes
Continuous Wavelet Transform using Splines
Raphaël Ertle
Watershed by flooding
Daniel Stadelmann
Non Linear Diffusion Filtering
Laurent Vieira De Mello
Interpolation on Affine Transformation
Raphaël Marthe