Towards the automatic detection of skin lesion shape asymmetry, color variegation and diameter in dermoscopic images.

Towards the automatic detection of skin lesion shape asymmetry, color variegation and diameter in dermoscopic images.

Publication date: Feb 04, 2020

Asymmetry, color variegation and diameter are considered strong indicators of malignant melanoma. The subjectivity inherent in the first two features and the fact that 10% of melanomas tend to be missed in the early diagnosis due to having a diameter less than 6mm, deem it necessary to develop an objective computer vision system to evaluate these criteria and aid in the early detection of melanoma which could eventually lead to a higher 5-year survival rate. This paper proposes an approach for evaluating the three criteria objectively, whereby we develop a measure to find asymmetry with the aid of a decision tree which we train on the extracted asymmetry measures and then use to predict the asymmetry of new skin lesion images. A range of colors that demonstrate the suspicious colors for the color variegation feature have been derived, and Feret’s diameter has been utilized to find the diameter of the skin lesion. The decision tree is 80% accurate in determining the asymmetry of skin lesions, and the number of suspicious colors and diameter values are objectively identified.

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Concepts Keywords
Computer Vision Cancer
Malignant Melanoma RTT
Melanoma Melanomas
Melanomas Melanocytic nevus
Skin Lesion Nevus
Subjectivity Facial symmetry
Tree Aesthetics
Variegation Organ systems
Human body
Melanoma

Semantics

Type Source Name
disease MESH malignant melanoma
disease MESH diagnosis
pathway KEGG Melanoma
disease MESH nomas
pathway REACTOME Reproduction
drug DRUGBANK Coenzyme M
drug DRUGBANK Trestolone
disease MESH tumors
disease MESH nevi

Original Article

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