Accession Number:
ADA463031
Title:
Comparative Analysis of Kernel Methods for Statistical Shape Learning
Descriptive Note:
Conference paper
Corporate Author:
GEORGIA INST OF TECH ATLANTA BIOENGINEERING CENTER
Personal Author(s):
Report Date:
2006-01-01
Pagination or Media Count:
13.0
Abstract:
Prior knowledge about shape may be quite important for image segmentation. In particular, a number of different methods have been proposed to compute the statistics on a set of training shapes, which are then used for a given image segmentation task to provide the shape prior. In this work, we perform a comparative analysis of shape learning techniques such as linear PCA, kernel PCA, locally linear embedding and propose a new method, kernelized locally linear embedding for doing shape analysis. The surfaces are represented as the zero level set of a signed distance function and shape learning is performed on the embeddings of these shapes. We carry out some experiments to see how well each of these methods can represent a shape, given the training set.
Descriptors:
Subject Categories:
- Cybernetics
- Statistics and Probability