Detection of skin-line transition in digital medical imaging
US5889882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1996 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Mar 21, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/924
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of determining the skin-line in a digital medical image comprising the steps of: PA1 providing a digital medical image including a matrix of lines and columns of pixels; PA1 determining the minimum gray level of the background pixels using a background detection routine; PA1 selecting all or at least a representative sample of said lines and/or columns of said image, and for each selected line or column; PA1 smoothing the line to minimize the effect of noise on the delineation of pixel gray level transitions; PA1 identifying significant transitions from segments of monotonically decreasing gray level values that span a minimum gray level range and start near or above said minimum background gray level; PA1 computing a set of features for each identified significant transition; and PA1 based on the set of features computed for each of the identified significant transitions, classifying the transition as either a skin-line transition or as a non-skin-line transition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.