Towards automatic grading of nuclear cataract

Huiqi Li; Joo Hwee Lim; Jiang Liu; Tien Yin Wong

doi:10.1109/IEMBS.2007.4353454

Towards automatic grading of nuclear cataract

Huiqi Li, Joo Hwee Lim, Jiang Liu, Tien Yin Wong

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

27 Citations (Scopus)

Abstract

Objective quantification of lens images is essential for cataract assessment and treatment. In this paper, bottom-up and top-down strategies are combined to detect the lens contour from the slit-lamp images. The center of the lens is localized by horizontal and vertical intensity profile clustering and the lens contour is estimated by fitting an ellipse. A modified active shape model (ASM) is further applied to detect the contour of the lens. The average intensity inside the lens is employed as the indicator of nuclear opacity. The relationship between our automated nuclear cataract assessment and the clinical grading is analyzed. The preliminary study of forty images shows that the difference between automatic grading and clinical grading is acceptable.

Original language	English
Title of host publication	29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Pages	4961-4964
Number of pages	4
DOIs	https://doi.org/10.1109/IEMBS.2007.4353454
Publication status	Published - 2007
Externally published	Yes
Event	29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France Duration: 23 Aug 2007 → 26 Aug 2007

Publication series

Name	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)	0589-1019

Conference

Conference	29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Country/Territory	France
City	Lyon
Period	23/08/07 → 26/08/07

ASJC Scopus subject areas

Signal Processing
Biomedical Engineering
Computer Vision and Pattern Recognition
Health Informatics

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10.1109/IEMBS.2007.4353454

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Li, H., Lim, J. H., Liu, J., & Wong, T. Y. (2007). Towards automatic grading of nuclear cataract. In 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 (pp. 4961-4964). Article 4353454 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). https://doi.org/10.1109/IEMBS.2007.4353454

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title = "Towards automatic grading of nuclear cataract",

abstract = "Objective quantification of lens images is essential for cataract assessment and treatment. In this paper, bottom-up and top-down strategies are combined to detect the lens contour from the slit-lamp images. The center of the lens is localized by horizontal and vertical intensity profile clustering and the lens contour is estimated by fitting an ellipse. A modified active shape model (ASM) is further applied to detect the contour of the lens. The average intensity inside the lens is employed as the indicator of nuclear opacity. The relationship between our automated nuclear cataract assessment and the clinical grading is analyzed. The preliminary study of forty images shows that the difference between automatic grading and clinical grading is acceptable.",

author = "Huiqi Li and Lim, {Joo Hwee} and Jiang Liu and Wong, {Tien Yin}",

note = "Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 ; Conference date: 23-08-2007 Through 26-08-2007",

year = "2007",

doi = "10.1109/IEMBS.2007.4353454",

language = "English",

isbn = "1424407885",

series = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

pages = "4961--4964",

booktitle = "29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07",

}

Li, H, Lim, JH, Liu, J & Wong, TY 2007, Towards automatic grading of nuclear cataract. in 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07., 4353454, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, pp. 4961-4964, 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07, Lyon, France, 23/08/07. https://doi.org/10.1109/IEMBS.2007.4353454

Towards automatic grading of nuclear cataract. / Li, Huiqi; Lim, Joo Hwee; Liu, Jiang et al.
29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07. 2007. p. 4961-4964 4353454 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

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AU - Lim, Joo Hwee

AU - Liu, Jiang

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N2 - Objective quantification of lens images is essential for cataract assessment and treatment. In this paper, bottom-up and top-down strategies are combined to detect the lens contour from the slit-lamp images. The center of the lens is localized by horizontal and vertical intensity profile clustering and the lens contour is estimated by fitting an ellipse. A modified active shape model (ASM) is further applied to detect the contour of the lens. The average intensity inside the lens is employed as the indicator of nuclear opacity. The relationship between our automated nuclear cataract assessment and the clinical grading is analyzed. The preliminary study of forty images shows that the difference between automatic grading and clinical grading is acceptable.

AB - Objective quantification of lens images is essential for cataract assessment and treatment. In this paper, bottom-up and top-down strategies are combined to detect the lens contour from the slit-lamp images. The center of the lens is localized by horizontal and vertical intensity profile clustering and the lens contour is estimated by fitting an ellipse. A modified active shape model (ASM) is further applied to detect the contour of the lens. The average intensity inside the lens is employed as the indicator of nuclear opacity. The relationship between our automated nuclear cataract assessment and the clinical grading is analyzed. The preliminary study of forty images shows that the difference between automatic grading and clinical grading is acceptable.

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DO - 10.1109/IEMBS.2007.4353454

M3 - Conference contribution

C2 - 18003120

AN - SCOPUS:57649215885

SN - 1424407885

SN - 9781424407880

T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

SP - 4961

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BT - 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07

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Y2 - 23 August 2007 through 26 August 2007

ER -

Towards automatic grading of nuclear cataract

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ASJC Scopus subject areas

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