Abstract
This paper describes computer vision software for a project, the aim of which is to develop a prototype of a fast, low-cost machine vision system for the inspection of surface mount electronic assemblies and solder joints. The system uses advanced edge detection and shape description software to analyse the board, taking data from a simple optical platform. This platform is used as opposed to more complex alternatives such as laser range-finding/profiling, structured light, thermal or X-ray techniques. Hence the sophistication of this system lies in the software and not in the data capture technology. Transputers are used to provide an economical means of attaining the necessary computational power for the image analysis. This leads to a low cost solution that would be attractive to surface mount manufacturers. This paper describes the software modules required to perform feature extraction and shape analysis for inspection and how the modules are parallelized to run on a transputer network.
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