On full aspect conveyed object inspection at high speed

Removing faulty products from a production line at an early production stage can lead to significant waste reduction and an improvement in quality. In order to inspect all of the visible surfaces of conveyed objects, a structured light system comprising two cameras and laser sources is presented. High speed cameras are used to provide accurate inspection at high belt speeds. The system locates and extracts information from multiple objects within a scene and then performs dimensional analysis on the extracted data from two opposing viewpoints. The objects are tracked as they move through the inspection area allowing for a full inspection. The dimensional measurements from each viewpoint are then brought together for a final accept or reject decision.