METHOD AND APPARATUS FOR PHOTOGRAMMETRIC ASSESSMENT OF BIOLOGICAL TISSUE

摘要

A remote wound assessment method and apparatus includes forming an oblique image (32) of a wound (34) and a target object such as a plate (36) containing a rectangle (37) and placed near the wound. Using a novel method of determining vanishing points (V1, V2) where photographic images of parallel lines on the target object intersect, coordinate transformations are calculated which map the oblique image (36I) of the rectangle (37I) into a normal image (36N) thereof. Using the same coordinate transformations, an oblique image (34I) of a wound (34) adjacent to the target plate (36) is mapped into a normal view (34N) thereof, allowing precise measurement of wound features. By forming two separate images (32L, 32R) of a wound (34) and target plate (36) at two different oblique inclinations, three-dimensional features of a wound may be measured.