Title :
Software for 3-D visualization/analysis of optic-disc images
Author :
Yogesan, K. ; Barry, C.J. ; Jitskaia, L. ; Eikelboom, R.H. ; Morgan, W.H. ; House, P.H. ; van Saarloos, P.P.
Author_Institution :
Lions Eye Inst., Western Australia Univ., Nedlands, WA, Australia
Abstract :
Discusses a software tool called the stereo optic disc analyzer (SODA) (patent pending ID:P09819, 1997), which has been developed for quantitative image processing of stereo optic-disc photographs to aid in the diagnosis and assessment of retinal disease. It is able to perform color matching and alignment of two images so that they are superimposed and viewed in 3-D sequential display by use of a pair of 3-D goggles. These 3-D images of the same patient are taken at different times, often over periods of several years. Measurements of optic-disc cupping, vertical and horizontal cup/disc ratio, cup and disc area, diameter, shape, and neuroretinal rim width can be determined using a predefined template placed over the image (one for the right eye and one for the left eye). Sequential display of stereo images (stereo flicker chronoscopy) and digital stereophotogrammetry provide sensitive methods for monitoring glaucomatous changes to the optic disc.
Keywords :
diseases; eye; medical image processing; photogrammetry; photographic applications; software tools; stereo image processing; vision defects; 3-D goggles; 3-D visualization; color matching; cup/disc ratio; glaucomatous changes monitoring; images alignment; medical diagnostic imaging; neuroretinal rim width; optic-disc images; predefined template; retinal disease; sequential display; stereo optic disc analyzer; Diseases; Displays; Eye protection; Image analysis; Image processing; Optical sensors; Retina; Shape measurement; Software tools; Visualization; Algorithms; Analysis of Variance; Glaucoma; Humans; Image Enhancement; Observer Variation; Optic Disk; Photogrammetry; Pilot Projects; Software; Software Design;
Journal_Title :
Engineering in Medicine and Biology Magazine, IEEE
