Measuring and monitoring skin feature colors, form and size
Inventors
ADIRI, Yonatan • Omer, Ido • MENDELOWITZ, Shachar • SALOMON, Roee
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12295739-B2
Publication Date
2025-05-13
Expiration Date
Abstract
Kits, diagnostic systems and methods are provided, which measure the distribution of colors of skin features by comparison to calibrated colors which are co-imaged with the skin feature. The colors on the calibration template (calibrator) are selected to represent the expected range of feature colors under various illumination and capturing conditions. The calibrator may also comprise features with different forms and size for calibrating geometric parameters of the skin features in the captured images. Measurements may be enhanced by monitoring over time changes in the distribution of colors, by measuring two and three dimensional geometrical parameters of the skin feature and by associating the data with medical diagnostic parameters. Thus, simple means for skin diagnosis and monitoring are provided which simplify and improve current dermatologic diagnostic procedures.
Core Innovation
The invention relates to image skin diagnosis using a calibrator that has a plurality of colored areas. A group of images is received in which a skin feature is captured next to the calibrator, where the skin feature has multiple segments of differing colors, and the plurality of colored areas are selected based on a specific medical condition.
Actual colors of the multiple segments of the skin feature are determined by analyzing the colors of the multiple segments of the skin feature and the plurality of colored areas of the calibrator that are commonly captured. This uses the captured calibrator colors and selected calibrator colors to derive an image normalization function, producing normalized skin-feature colors, and the normalized skin-feature colors and associated parameters are then used to determine an indication of a medical condition associated with the skin feature.
The disclosed approach further supports characterizing the skin feature with additional geometric normalization and feature extraction, including two-dimensional measurements and three-dimensional characterization or structure from multiple viewpoints. It also describes monitoring over time, including rate-of-change of skin parameters and monitoring healing progress, and using positioning marks and form or size features for normalization and extraction of geometric parameters.
Claims Coverage
The independent claims include three inventive claim sets: a non-transitory computer readable storage medium, a method, and a system for image skin diagnosis. Across these independent claims, the core inventive workflow is the same, comprising calibrator-based capture, calibrator-anchored color analysis to determine actual skin-segment colors, and medical-condition indication based on differing skin-segment colors.
Calibrator-selected colored areas for skin diagnosis imaging
Receiving a group of images of a skin feature next to a calibrator having a plurality of colored areas thereon, wherein the skin feature has multiple segments of differing colors, and wherein the plurality of colored areas are selected based on a specific medical condition.
Commonly captured calibrator and skin color analysis to determine actual skin colors
Analyzing the colors of the multiple segments of the skin feature and the plurality of colored areas of the calibrator commonly captured on at least one image to determine actual colors of the multiple segments of the skin feature.
Medical-condition indication based on differing skin-segment colors
Based on the differing colors of the multiple segments of the skin feature, determining an indication of a medical condition associated with the skin feature.
Image skin diagnosis processing device implementation
A system for image skin diagnosis comprising at least one processing device configured to receive a group of images of a skin feature next to a calibrator having a plurality of colored areas thereon, analyze colors of the multiple skin segments and the plurality of colored areas commonly captured to determine actual colors of the multiple segments, and determine an indication of a medical condition associated with the skin feature based on the differing colors.
Across the independent claims, the document covers calibrator-selected colored areas for capturing a skin feature with multiple differently colored segments, analyzing commonly captured calibrator and skin colors to determine actual skin-segment colors, and determining an indication of a medical condition based on the differing skin-segment colors.
Stated Advantages
Improved dermatologic diagnosis based on normalized skin-feature colors and extracted geometric parameters.
Enables medical diagnostic parameters and monitoring over time, including rate-of-change of skin parameters and monitoring healing progress.
Reduces effects of illumination and capturing conditions by constraining calibrator colored areas to expected color ranges and deriving an image normalization function from captured calibrator colors.
Supports user alerting when illumination or capturing conditions are inappropriate for accurate color detection.
Documented Applications
Dermatologic diagnosis of a medical condition associated with a skin feature using image skin diagnosis based on calibrator-normalized skin-feature color distribution and associated parameters.
Longitudinal monitoring of healing progress by monitoring rate-of-change of skin parameters over time.
Interested in licensing this patent?