Analysis unit and system for assessment of hair condition

A system for assessment of hair condition, the system comprising:

• an upload unit,
• an analysis unit according for assessment of hair condition, the analysis unit comprising a map processor, the map processor being configured to:
• obtain a first follicular map representing a first plurality of hair root positions in a first videodermoscopy image,
• obtain a second follicular map representing a second plurality of hair root positions in a second videodermoscopy image,
• determine a common skin area from the first follicular map and the second follicular map,
• relate hair root positions in the second follicular map to hair root positions of the first follicular map in the common skin area to determine a plurality of related hair root positions, each related hair root position of a hair root in the second follicular map being related to a hair root position in the first follicular map of the same hair root, and
• compare a change in condition of individual hair between the first and second videodermoscopy image to determine the analysis result suitable for assessment of hair condition, and
• a presentation unit,
• wherein the upload unit is configured to receive one or more videodermoscopy images, the one or more videodermoscopy images including at least the first videodermoscopy image and to upload the one or more videodermoscopy images to the analysis unit,
• wherein the analysis unit is configured to receive the one or more videodermoscopy images from the upload unit and to obtain a videodermoscopic analysis result from the one or more videodermoscopy images, the videodermoscopic analysis result including at least one of:
• the analysis result suitable for assessment of hair condition, and
• an examination result derived from at least one of the analysis result suitable for assessment of hair condition, and
• wherein the presentation unit is configured to receive the videodermoscopic analysis result from the analysis unit and to present at least part of the analysis result to a user.

A method for assessment of hair condition, the method comprising:

• obtaining a first follicular map representing a first plurality of hair root positions in a first videodermoscopy image,
• obtaining a second follicular map representing a second plurality of hair root positions in a second videodermoscopy image,
• determining a common skin area from the first follicular map and the second follicular map,
• relating hair root positions in the second follicular map to hair root positions of the first follicular map in the common skin area to determine a plurality of related hair root positions, each related hair root position of a hair root in the second follicular map being related to a hair root position in the first follicular map of the same hair root;
• and
• comparing a change in condition of individual hair between the first and second videodermoscopy image to determine the analysis result suitable for assessment of hair condition.

A non-transitory computer readable storage media having computer-executable instructions configured to, when executed by a processor, perform the steps comprising:

• obtaining a first follicular map representing a first plurality of hair root positions in a first videodermoscopy image,
• obtaining a second follicular map representing a second plurality of hair root positions in a second videodermoscopy image,
• determining a common skin area from the first follicular map and the second follicular map,
• relating hair root positions in the second follicular map to hair root positions of the first follicular map in the common skin area to determine a plurality of related hair root positions, each related hair root position of a hair root in the second follicular map being related to a hair root position in the first follicular map of the same hair root;
• and
• comparing a change in condition of individual hair between the first and second videodermoscopy image to determine the analysis result suitable for assessment of hair condition.