Public web page of CompareContours

CompareContours Project Definition ( v1x00 )

Overview

The CompareContours program will compare two sets of contours and measure their similarity.

Assumptions about data

• Both sets of contours are registered into the same coordinate space.

Inputs

the program will read Loni UCF files and Minc Obj line files

Outputs

The program will output either

• a single number for the entire contour set , measuring the similarity of one contour set to the other.
• a list of simiarity values, one for each vertex, in the order of the input vertices. This will be written to
  • standard output
  • a user specified text file.

Issues to be decided

• What to do if the nubmer of contors in the two sets differ. options are:
  • report this as an error and stop.
  • To be decided ...

metrics

• per-vertex
  • for each vertex in one contour set, find the closest point in the other set, and report this (euclidean) distance.

• entire contour set
  • report mean absolute distance.
  • report Hausdorf distance (the largest per-vertex value)

Version

1.0

Requirements

• Java 1.5 is used to implement this program.

Products

This project will result in the following products:

• A java application program
• a pipelline wrapper (.pipe) file for the grid executables.
• Twiki user web pages describing this program and it's proper usage.

Typical Usage

References

• MSc_Thesis_Na_Harrington.pdf: Defines the contour comparison metrics used.

Changes

Version 1.1

• accept dissimiliar file types if only vertices are compared