A Geometric Flow Approach for Segmentation of Images with Inhomongeneous Intensity and Missing Boundaries

• URL: http://arxiv.org/abs/2309.10935v1
• Date: Tue, 19 Sep 2023 21:33:47 GMT
• Title: A Geometric Flow Approach for Segmentation of Images with Inhomongeneous Intensity and Missing Boundaries
• Authors: Paramjyoti Mohapatra, Richard Lartey, Weihong Guo, Michael Judkovich, and Xiaojuan Li
• Abstract summary: We propose a novel intensity correction and a semi-automatic active contour based segmentation approach. Numerical experiments show that the proposed scheme leads to significantly better results than compared ones.
• Score: 2.5477850853771145
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Image segmentation is a complex mathematical problem, especially for images that contain intensity inhomogeneity and tightly packed objects with missing boundaries in between. For instance, Magnetic Resonance (MR) muscle images often contain both of these issues, making muscle segmentation especially difficult. In this paper we propose a novel intensity correction and a semi-automatic active contour based segmentation approach. The approach uses a geometric flow that incorporates a reproducing kernel Hilbert space (RKHS) edge detector and a geodesic distance penalty term from a set of markers and anti-markers. We test the proposed scheme on MR muscle segmentation and compare with some state of the art methods. To help deal with the intensity inhomogeneity in this particular kind of image, a new approach to estimate the bias field using a fat fraction image, called Prior Bias-Corrected Fuzzy C-means (PBCFCM), is introduced. Numerical experiments show that the proposed scheme leads to significantly better results than compared ones. The average dice values of the proposed method are 92.5%, 85.3%, 85.3% for quadriceps, hamstrings and other muscle groups while other approaches are at least 10% worse.

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