NDLI: Active contours with prior corner detection to extract discontinuous boundaries of anatomical structures in X-ray images

Content Provider	IET Digital Library
Author	Niroshika, Aruni U. A. Meegama, Ravinda G. N. Lokupitiya, Ravindra S. Kannangara, Donna K. S.
Abstract	Active contours are a form of curves that deforms according to an energy minimising function and are widely used in computer vision and image processing applications to extract features of interests from raw images acquired using an image capturing device. One of the major limitations in active contours is its inability to converge accurately when the object of interest exhibits sharp corners. In this study, a new technique of active contour model to extract boundaries of objects having sharp corners is presented. By incorporating a priori knowledge of significant corners of the object into the deforming contour, the proposed active contour is able to deform towards the boundaries of the object without surpassing the corners. The ability of the new technique to accurately extract features of interest of anatomical structures in medical X-ray images having sharp corners is demonstrated.
Starting Page	202
Ending Page	210
Page Count	9
ISSN	17519659
Volume Number	9
e-ISSN	17519667
Issue Number	Issue 3, Mar (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/9/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2014.0106
Journal	IET Image Processing
Publisher Date	2014-09-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A Priori Knowledge Active Contour Deformation Active Contour Model Anatomical Structures Biology And Medical Computing Biomedical Imaging/measurement Computer Vision Computer Vision And Image Processing Technique Convergence Deformation Diagnostic Radiography Discontinuous Boundary Extraction Edge Detection Energy Minimising Function Feature Extraction Image Capturing Device Image Processing Application Medical Image Processing Medical X-Ray Image Minimisation Optical, Image And Video Signal Processing Optimisation Technique Patient Diagnostic Method And Instrumentation Prior Corner Detection Radiography And Computed Tomography Sharp Object Corner Boundary Extraction X-Ray Technique X-Rays And Particle Beam
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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