Associate Professor, Head of the Computer Science Department, Federal University of the state of Espírito Santo, Vitória, Brazil

my.software tools

TOOLDIAG

TOOLDIAG is a collection of methods for statistical pattern recognition. The main area of application is classification. The main capabilities of the program are:

  • Different classifier architectures
  • Feature selection
  • Feature extraction
  • Error estimation
  • Normalization
  • Graphical Interface to the GNUPLOT program

Go to the TOOLDIAG homepage with a more detailed description

UFF

UFF is a package which calculates continuous numerical descriptors from 2-dimensional curve patterns. The UNL FOURIER FEATURES (UFF) are invariant to TRANSLATIONS, ROTATIONS and SCALE CHANGES of the original pattern. This shape descriptor is a general purpose method.

UFF is listed in the following WWW-resources:

Processable example patterns

Box with 3 holes   Wheel with hole   Scissors   Stapler  

Download

FD

FD is a program which calculates FOURIER DESCRIPTORS from thin, closed curves. You should be familiar with the concept of Fourier Descriptors.

The source code for UFF and FD is identical. Download

The relevant references are:

  1. Zahn, C. T., and Roskies, R. Z., "Fourier descriptors for plane closed curves," IEEE Trans. on Computers, vol. C-21, no. 3, pp. 269-281, 1972.
  2. Persoon, E., and Fu, K.-S., "Shape discrimination using Fourier Descriptors," IEEE Trans. Systems, Man, and Cybernetics, vol. SMC-7, no. 3, pp. 170-179, 1977.
  3. Gonzalez, R. C., and Woods, R. E., Digital Image Processing, Addison-Wesley, 1992.

VVV --- VIEWING VOLUME VISUALIZER

VVV is a didactical tool to understand viewing and projection in OpenGL.

Go to the VVV homepage with a more detailed description