An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases

Siti Raihanah Abdani, Wan Mimi Diyana Wan Zaki, Aini Hussain, Aouache Mustapha

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

1 Citation (Scopus)

Abstract

Pterygium is an eye related disease affected by the fibrovascular tissue that encroaches into the corneal region. Recently, image processing techniques have been explored in the development of pterygium detection system. An iris segmentation module is needed to develop an automatic pterygium detection system of the anterior segment photographed images (ASPI). Qualitatively, the invasion of the pterygium tissues on the iris will result in the imperfect circular iris feature. Thus, an adaptive nonlinear enhancement method using sigmoid function have been proposed in this work to enhance the ASPI. The cutoff and gain factor of the sigmoid function are adaptively calculated based on the tested images. Fifty eight ASPI of various sizes contributed by RAFAEL have been tested using the proposed enhancement method. The proposed method proves to give better visual results, later contributes to more accurate segmented iris regions with accuracy and specificity values of 0.9353 and 0.8818, respectively.

Original languageEnglish
Title of host publicationProceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages53-57
Number of pages5
ISBN (Print)9781467393454
DOIs
Publication statusPublished - 12 Jan 2016
Event17th International Electronics Symposium, IES 2015 - Surabaya, Indonesia
Duration: 29 Sep 201530 Sep 2015

Other

Other17th International Electronics Symposium, IES 2015
CountryIndonesia
CitySurabaya
Period29/9/1530/9/15

Fingerprint

Tissue
Image processing

Keywords

  • ASPI
  • iris segmentation
  • pterygium
  • sigmoid function

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications

Cite this

Abdani, S. R., Wan Zaki, W. M. D., Hussain, A., & Mustapha, A. (2016). An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases. In Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015 (pp. 53-57). [7380813] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ELECSYM.2015.7380813

An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases. / Abdani, Siti Raihanah; Wan Zaki, Wan Mimi Diyana; Hussain, Aini; Mustapha, Aouache.

Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015. Institute of Electrical and Electronics Engineers Inc., 2016. p. 53-57 7380813.

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

Abdani, SR, Wan Zaki, WMD, Hussain, A & Mustapha, A 2016, An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases. in Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015., 7380813, Institute of Electrical and Electronics Engineers Inc., pp. 53-57, 17th International Electronics Symposium, IES 2015, Surabaya, Indonesia, 29/9/15. https://doi.org/10.1109/ELECSYM.2015.7380813
Abdani SR, Wan Zaki WMD, Hussain A, Mustapha A. An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases. In Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015. Institute of Electrical and Electronics Engineers Inc. 2016. p. 53-57. 7380813 https://doi.org/10.1109/ELECSYM.2015.7380813
Abdani, Siti Raihanah ; Wan Zaki, Wan Mimi Diyana ; Hussain, Aini ; Mustapha, Aouache. / An adaptive nonlinear enhancement method using sigmoid function for iris segmentation in pterygium cases. Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 53-57
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