An unconstrained ellipse fitting technique and application to optic cup segmentation

Harsha Sridhar, J. R. Harish Kumar, Subramanya Jois, Chandra Sekhar Seelamantula

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a novel method for fitting an ellipse to scattered data based on least-squares minimization. The new technique has several advantages over the standard ellipse fitting techniques. For one, it is constraint-free and computationally inexpensive thus making it easy to implement. Also, despite the absence of constraints, execution of the model always results in an ellipse fit. Additionally, the model results in a singular solution for a given set of datapoints. The proposed model is compared with standard techniques and shown to have the ability to fit an accurate ellipse even when other methods either fail to be ellipse-specific or take up excessive computation time for execution. An application to the problem of segmentation of the optic cup in retinal fundus images, is also presented. Experimental validation and performance comparisons show that the proposed technique is competitive with the state-of-the-art methods.

Original languageEnglish
Title of host publication2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages514-518
Number of pages5
ISBN (Electronic)9781728112954
DOIs
Publication statusPublished - 20-02-2019
Externally publishedYes
Event2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Anaheim, United States
Duration: 26-11-201829-11-2018

Publication series

Name2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings

Conference

Conference2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018
CountryUnited States
CityAnaheim
Period26-11-1829-11-18

Fingerprint

Optics

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Signal Processing

Cite this

Sridhar, H., Harish Kumar, J. R., Jois, S., & Seelamantula, C. S. (2019). An unconstrained ellipse fitting technique and application to optic cup segmentation. In 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings (pp. 514-518). [8646446] (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GlobalSIP.2018.8646446
Sridhar, Harsha ; Harish Kumar, J. R. ; Jois, Subramanya ; Seelamantula, Chandra Sekhar. / An unconstrained ellipse fitting technique and application to optic cup segmentation. 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 514-518 (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings).
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Sridhar, H, Harish Kumar, JR, Jois, S & Seelamantula, CS 2019, An unconstrained ellipse fitting technique and application to optic cup segmentation. in 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings., 8646446, 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 514-518, 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018, Anaheim, United States, 26-11-18. https://doi.org/10.1109/GlobalSIP.2018.8646446

An unconstrained ellipse fitting technique and application to optic cup segmentation. / Sridhar, Harsha; Harish Kumar, J. R.; Jois, Subramanya; Seelamantula, Chandra Sekhar.

2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. p. 514-518 8646446 (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Sridhar H, Harish Kumar JR, Jois S, Seelamantula CS. An unconstrained ellipse fitting technique and application to optic cup segmentation. In 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. p. 514-518. 8646446. (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings). https://doi.org/10.1109/GlobalSIP.2018.8646446