Modelling of edge profiles in pigmented skin lesions

Date

2002-07

Advisors

Journal Title

Journal ISSN

ISSN

DOI

Volume Title

Publisher

MIUA, British Machine Vision Association

Type

Conference

Peer reviewed

Yes

Abstract

The sharpness of the lesion boundary and the contrast between the lesion and the surrounding skin provide important diagnostic information in the assessment of pigmented skin lesions. This paper presents a new method for computing these parameters by employing an edge model based on a sigmoid function. For each radial profile of the lesion, optimal parameters are found by using an iterative least-squares method. The level and nature of variability of these parameters along the boundary will be correlated with lesion diagnosis in a future study. The method also returns the location equivalent to “zero-crossing” for each profile, thus producing a lesion outline. Additionally, the spread of the pigment beyond the zero-crossing point is computed, thus showing the lesion extent.

Description

Keywords

skin lesion, medical imaging

Citation

Claridge, E. and Orun, A.B. (2002) Modelling of edge profiles in pigmented skin lesions. (MIUA) Medical Image Understanding and Analysis, University of Portsmouth, July 2002

Rights

Research Institute

Institute of Artificial Intelligence (IAI)