Active Shape Models, Modeling Shape Variations and Gray Level Information and an Application to Image Search and Classification
Ghassan Hamarneh · 1998
This report presents a review and an investigation of a shape modeling method referred to as Active Shape Modeling. The appearance of objects in images varies due to several reasons including lighting effects, 3D pose, and other. Here we represent objects by a number of landmark points and then model the shape variations of an object using principal component analysis to obtain a point distribution model. We also model the gray level appearance of objects. We then use our knowledge about the appearance of objects in image search and classification of objects. iv v Acknowledgement This investigation was funded by the Swedish Foundation for Strategic Research as part of the national research programme VISIT (VISual Information Technology). vi vii Table of Contents ABSTRACT III ACKNOWLEDGEMENT V TABLE OF CONTENTS VII INDEX TERMS IX VARIABLES AND NOTATION IX 1. INTRODUCTION 1 2. POINT DISTRIBUTION MODEL 2 2.1. SHAPE VARIATIONS 2 2.2. MODELING SHAPE VARIATIONS 3 2.3. PRE-MOD...