# Lecture: Shape Analysis - Classification, Matching and Retrieval

## Course

• Lecturer(s):
• Start: 22.10.2009
• Dates: Thu. 11 (c.t.) - 13, N328
• Course number: MA-INF 2305
• Curriculum: Master , Diploma (Graduate)
• Diploma Area: B

## Exercises

• Tutor(s):
• Start: 06.11.2009
• Dates: Fr. 13 (c.t.) - 15, N218

## Description

This class is focused on advanced topics in the field of geometry processing. Students will get familiar with recent developments in the area of shape analysis and shape retrieval.

Topics among others will be:

• Parameterization of surfaces
• Shape segmentation and shape similarity
• Shape classification and content based retrieval
• Shape spaces and statistical shape analysis

# Assignment notes

Running Matlab: Unfortunately, there is a bug in the current MATLAB installation in the pool. Before running Matlab it is therefore required to define a certain environment variable. Choose My Computer -> Properties -> Advanced -> Environment Variables -> New (in User Variables). Now define MATLAB_PREFDIR=C:\TEMP\<username>

Installing OMToolbox: In the exercises we will make use of the OmToolbox - an Interface of the OpenMesh Library to Matlab. To install it follow these steps

• extract OMT archive
• Under Windows in the Pool: Set environment variable VS80COMNTOOLS to the same value as VS90COMNTOOLS, e.g. c:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\Tools\ (for defining environment variables see Running Matlab). The value of VS90COMNTOOLS can be determined by running the command "set" in the command window
• start Matlab
• add OMT directory and its subdirectories to the Matlab path via File -> Set Path -> Add With Subfolders

## Assignment Sheets

 Exercise 1: D2 Shape Distributions Assignment sheet  (PDF document, 129 KB) Geruest.rar  (RAR archive, 2.4 MB) Exercise 2: Evalution Methods and Histogram Comparison Assignment sheet  (PDF document, 153 KB) Exercise 3: Integral Invariants And Spin Images Assignment sheet  (PDF document, 209 KB) bunny-binary_volume_V.mat  (31 KB) Exercise 4: Laplacians and Quadric fitting Assignment sheet  (PDF document, 240 KB) horse1k.obj  (TGIF document, 56 KB) showTriMesh2.m  (658 Bytes) Exercise 5: MDS and Bending Invariant Shape Surfaces Assignment sheet  (PDF document, 824 KB) DeformedArmadillos.tgz  (tar archive (gzip-compressed), 164 KB) FastFloyd.tgz  (tar archive (gzip-compressed), 1.4 KB) Exercise 6: Symmetry Detection Assignment sheet  (PDF document, 215 KB) butterfly-contour2.jpg  (JPEG image, 1.6 KB) Exercise 7: Questions Assignment sheet  (PDF document, 50 KB)