A Highly Adaptable Concept for Visual Inspection

To be acceptable in industry vision systems must be inexpensive within the speed of the production line ow and very accurate While visual inspection is high in potential at present the design and implementation of automatic visual inspection systems is labor intensive In addition most of the visual inspection systems are developed in isolation with no systematic approach Increasing exibility to allow the inspection of parts whose positions are less constrained is desirable This work aims to show a systematic automated visual inspection concept that separates the detection of primitives from the model based analysis process This separation is ob tained by de ning a general analysis graph for inspection containing detail relations that represent detection algorithms Together with an object speci c description de ned in a socalled description language the analysis graph is instantiated Existing pattern recog nition software is re used in the detection stage and therefore the use of any detection algorithm is possible without changing the analysis The concept can be seen as a recipe for solving industrial applications stating which kind of decision have to be made at which