An Efficiently Coupled Shape and Appearance Prior for Active Contour Segmentation
Abstract
This paper proposes a novel training model based on shape and appearance features for object segmentation in images and videos. Whereas most such models rely on two-dimensional appearance templates or a finite set of descriptors, our appearance-based feature is a one-dimensional function, which is efficiently coupled with the object's shape by integrating intensities along the object's iso-contours. Joint PCA training on these shape and appearance features further exploits shape-appearance correlations and the resulting training model is incorporated in an active-contour-type energy functional for recognition-segmentation tasks. Experiments on synthetic and infrared images demonstrate how this shape and appearance training model improves accuracy compared to methods based on the Chan-Vese energy.
Cite
@article{arxiv.2103.14887,
title = {An Efficiently Coupled Shape and Appearance Prior for Active Contour Segmentation},
author = {Martin Mueller and Navdeep Dahiya and Anthony Yezzi},
journal= {arXiv preprint arXiv:2103.14887},
year = {2021}
}