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This paper describes the implementation of a model driven scheme for 3-dimensional interpretation of simple line drawings of geometric objects. The scheme is based on conclusions derived from studies on how humans perceive impossible objects. These include: (i) that human vision is pervaded by expectations of structure, (ii) that it is compartmentalised(More)
This work examined recent literature on digital image processing in the field of diabetic retinopathy. Algorithms were categorized into 5 steps (preprocessing; localization and segmentation of the optic disk; segmentation of the retinal vasculature; localization of the macula and fovea; localization and segmentation of retinopathy). The variety of outcome(More)
Making the structure of software visible during system development helps (i) build a shared understanding of the context for each piece of work, (ii) identify progress with implementation, and (iii) highlight any conflict between individual development activities. Finding an adequate representation for such information is not straightforward, especially for(More)
Malignant melanoma is a skin tumour typified by high mortality rates when not diagnosed and excised in its earliest stages. Preoperative diagnostic accuracy may be improved through the development of computerised systems which accurately quantify features indicative of this cancer. One such feature is boundary contour asymmetry, which is typically measured(More)