Edge and corner detection

13 outubro 2008, 14:00 • Jorge Salvador Marques

Motivation for the need of interest points in image analysis procedures.

Edges. Edge detection using the gradient algorithm with non-maximum supression. The Canny algorithm. Corner detection using the Harris method. The SUSAN method for edge and corder detection.

Ph.D thesis

10 outubro 2008, 15:30 • Jorge Salvador Marques

There was no class today. The students were informed.

Nonlinear filtering: edge preserving algorithms

6 outubro 2008, 14:00 • Jorge Salvador Marques

The median filter. Properties in the presence of edges. Image denoising by median filtering. Aplication of median filtering to image sequences.

Anisotropic diffusion. The heat equation. Space-varying diffusion. The Perona-Malik method.

Linear Filtering

3 outubro 2008, 15:30 • Jorge Salvador Marques

Linear filtering concepts. Filter mask and convolution. Lowpass and highpass filters. The image gradient. Drawbacks of linear filtering.

Color

29 setembro 2008, 14:00 • Jorge Salvador Marques

Color perception, Trichromatic theory, Color sensors in the retina. Characterization of color with the RGB and HSV systems. Color matching. Description of complex color images using color histograms.