We are investigating the design of machine vision algorithms for real time inspection of filter components for quality assurance. Filter components are rigid 3D objects with predefined geometry so that a good deal of knowledge can be incorporated into the system design. However, while the objective is to reason about 3D structure, current machine vision techniques only allow the acquisition of ...

Potato quality control has improved in the last years thanks to automation techniques like machine vision, mainly making the classification task between different quality degrees faster, safer and less subjective. In our study we are going to design a computer vision algorithm for grading of potatoes according to the greening of the surface colour of potato. The ratio of green pixels to the tot...

This paper describes a machine vision system that classifies reflectance properties of surfaces such as metal, plastic, or paper, under unknown real-world illumination. We demonstrate performance of our algorithm for surfaces of arbitrary geometry. Reflectance estimation under arbitrary omnidirectional illumination proves highly underconstrained. Our reflectance estimation algorithm succeeds by...

The fusion of data provided by different sources of knowledge produces sensor systems showing higher robustness, signal to noise ratio, and adaptability. In the context of machine vision, a system can be designed as a group of indipendent visual modules acting as individual knowledge sources. An integration scheme is then needed to obtain a fused output. This text is a tutorial intended as an i...

purpose: to determine the prevalence and causes of blindness and low vision in khoozestan province in 2006. methods: this population-based cross-sectional study included all residents of khoozestan province during 2006. the study was designed according to world health organization recommendations. sample size was calculated based on the distribution of the population of khoozestan according to ...

introduction: diabetic retinopathy (dr) is one of the most serious and most frequent eye diseases in the world and the most common cause of blindness in adults between 20 and 60 years of age. following 15 years of diabetes, about 2% of the diabetic patients are blind and 10% suffer from vision impairment due to dr complications. this paper addresses the automatic detection of microaneurysms (ma...