Edge preserving image segmentation using spatially constrained EM algorithm
Joint Authors
Ramasamy, Meena
Ramapackiam, Shantha
Source
The International Arab Journal of Information Technology
Issue
Vol. 15, Issue 5 (30 Sep. 2018)6 p.
Publisher
Publication Date
2018-09-30
Country of Publication
Jordan
No. of Pages
6
Main Subjects
Information Technology and Computer Science
Abstract EN
In this paper, a new method for edge preserving image segmentation based on the Gaussian Mixture Model is presented.
The standard GMM considers each pixel as independent and does not incorporate the spatial relationship among the neighboring pixels.
Hence segmentation is highly sensitive to noise.
Traditional smoothing filters average the noise, but fail to preserve the edges.
In the proposed method, a bilateral filter which employs two filters - domain filter and range filter, is applied to the image for edge preserving smoothing.
Secondly, in the Expectation Maximization algorithm used to estimate the parameters of GMM, the posterior probability is weighted with the Gaussian kernel to incorporate the spatial relationship among the neighboring pixels.
Thirdly, as an outcome of the proposed method, edge detection is also done on images with noise.
Experimental results obtained by applying the proposed method on synthetic images and simulated brain images demonstrate the improved robustness and effectiveness of the method.
American Psychological Association (APA)
Ramasamy, Meena& Ramapackiam, Shantha. 2018. Edge preserving image segmentation using spatially constrained EM algorithm. The International Arab Journal of Information Technology،Vol. 15, no. 5.
https://search.emarefa.net/detail/BIM-839109
Modern Language Association (MLA)
Ramasamy, Meena& Ramapackiam, Shantha. Edge preserving image segmentation using spatially constrained EM algorithm. The International Arab Journal of Information Technology Vol. 15, no. 5 (Sep. 2018).
https://search.emarefa.net/detail/BIM-839109
American Medical Association (AMA)
Ramasamy, Meena& Ramapackiam, Shantha. Edge preserving image segmentation using spatially constrained EM algorithm. The International Arab Journal of Information Technology. 2018. Vol. 15, no. 5.
https://search.emarefa.net/detail/BIM-839109
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-839109