A method and apparatus is disclosed for determining the height, width, leh and orientation of an object from the feature image of the object found on oblique panoramic aerial photography. A magnifying eyepiece is provided with a calibrated reticle for measuring the dimensions of the feature image. The eyepiece also has a reference mark and indicia about the eyepiece for measuring the orientation from true north of the longitudinal axis of the feature image. The actual measurements of the object are quickly determined from the measurements of the feature image using a suitably programmed calculator supplied with the photograph and camera parameters.
The present invention relates generally to an automated reference indicator system. In one embodiment, the present invention provides a first reference indicator patch disposed near an area of interest, such as a wound, on an object, such as a human. A first image depicting the area of interest and the first reference indicator patch is captured and then input into a computer apparatus. A first set of data regarding the area of interest is then calculated by the computer apparatus based on an analysis of the first reference indicator patch and the area of interest. A second image of the area of interest and a second reference indicator patch disposed on at least a portion of the object is captured and subsequently input into the computer apparatus. The second image is typically taken at a time different from when the first image was taken. For example, the second image could be captured two weeks after the first image was captured. The computer apparatus locates the second reference indicator patch depicted in the second image and then calculates a second set of data regarding the area of interest based on an analysis of the second reference indicator patch and the area of interest. The computer apparatus then compares the first set of data to the second set of data to determine differences between the area of interest as depicted in the first image and the area of interest as depicted in the second image.
