Segmentation of 3 D Surface

Assessment of the Log-Euclidean Metric Performance in Diffusion Tensor Image Segmentation

Introduction: Appropriate definition of the distance measure between diffusion tensors has a deep impact on Diffusion Tensor Image (DTI) segmentation results. The geodesic metric is the best distance measure since it yields high-quality segmentation results. However, the important problem with the geodesic metric is a high computational cost of the algorithms based on it. The main goal of this ...

Multiresolution 3-D range segmentation using focus cues

This paper describes a novel system for computing a three-dimensional (3-D) range segmentation of an arbitrary visible scene using focus information. The process of range segmentation is divided into three steps: an initial range classification, a surface merging process, and a 3-D multiresolution range segmentation. First, range classification is performed to obtain quantized range estimates. ...

The Layered Net Surface Problems in Discrete Geometry and Medical Image Segmentation

Efficient detection of multiple inter-related surfaces representing the boundaries of objects of interest in d-D images (d >/= 3) is important and remains challenging in many medical image analysis applications. In this paper, we study several layered net surface (LNS) problems captured by an interesting type of geometric graphs called ordered multi-column graphs in the d-D discrete space (d >/...

Elastic deformable contour and surface models for 2-D and 3-D image segmentation

A Computer-Aided Design Environment for Segmentation of Volumetric Images

Due to considerable variations in sensor and tissue characteristics, design of automated methods that can correctly segment all input images is very diÆcult, if not impossible. Clinicians often nd it necessary to revise the result of an automatically determined segmentation. In this paper, a computer-aided design environment is introduced that enables quick and e ective revision of segmented vo...

Rapid three-dimensional surface mesh segmentation based on region dilation

Three-dimensional laser scanned surface segmentation is an important step for computer-aided broken objection patching. Current methods still have high time consuming problem in practical applications. In order to solve this problem, we propose the rapid three-dimensional (3-D) surface segmentation based on region dilation. The procedure includes three steps of point cloud meshing, candidate re...