Method and device for analysing an image
AssigneesSingapore University of Technology and Design, National Skin Centre (Singapore) PTE LTD
InventorsThanh-Toan Do, Yiren Zhou, Victor Pomponiu, Ngai-Man Cheung, Dawn Chin Ing Koh, Tan Suat Hoon
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Abstract
A method for analyzing an image of a lesion on the skin of a subject including (a) identifying the lesion in the image by differentiating the lesion from the skin; (b) segmenting the image; and (c) selecting a feature of the image and comparing the selected feature to a library of predetermined parameters of the feature. The feature of the lesion belongs to any one selected from the group: color, border, asymmetry and texture of the image.
Claims20
A method for analysing analyzing an image of a lesion on the skin of a subject, the method comprising:
- (a) identifying the lesion in the image by differentiating the lesion from the skin;
- (b) segmenting the image;
- and
- (c) selecting a feature of the image and comparing the selected feature to a library of pre-determined parameters of the feature, wherein the feature of the lesion belongs to any one selected from the group:
- colour, border, asymmetry and texture of the image,
- (d) quantifying the color variation and border irregularity of the image of the lesion, wherein the irregularity of the border is determined by:
- (a) providing lines along the border;
- (b) determining the angles between two adjacent lines;
- and
- (c) determining the average and variance of the angles,
- wherein the number of lines chosen is any number 8, 12, 16, 20, 24 or 28.
A device for analyzing an image of an object and evaluating the risk or likelihood of a disease or condition, the system comprising:
- (a) an image capturing device for capturing the image of an object;
- and
- (b) a processor for executing a set of instructions stored in the device for analyzing the image, the set of instructions includes a library of algorithms stored in the device to carry out a method comprising:
- identifying the lesion in the image by differentiating the lesion from the skin;
- segmenting the image;
- and
- selecting a feature of the image and comparing the selected feature to a library of pre-determined parameters of the feature, wherein the feature of the lesion belongs to any one selected from the group:
- color, border, asymmetry and texture of the image,
- quantifying the color variation and border irregularity of the image of the lesion, wherein the irregularity of the border is determined by:
- (a) providing lines along the border;
- (b) determining the angles between two adjacent lines;
- and
- (c) determining the average and variance of the angles,
- wherein the number of lines chosen is any number 8, 12, 16, 20, 24 or 28.
A non-transitory computer-readable medium including executable instructions to carry out a method for analyzing an image of a lesion on the skin of a subject, the method comprising:
- (a) identifying the lesion in the image by differentiating the lesion from the skin;
- (b) segmenting the image;
- and
- (c) selecting a feature of the image and comparing the selected feature to a library of pre-determined parameters of the feature, wherein the feature of the lesion belongs to any one selected from the group:
- colour, border, asymmetry and texture of the image,
- (d) quantifying the color variation and border irregularity of the image of the lesion, wherein the irregularity of the border is determined by:
- (a) providing lines along the border;
- (b) determining the angles between two adjacent lines;
- and
- (c) determining the average and variance of the angles,
- wherein the number of lines chosen is any number 8, 12, 16, 20, 24 or 28.
Dependencies are inferred from the claim text.