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A Swiss research institute has developed an online technique of speckle interferometry with which it is possible to examine flaws in components and study the stresses they may have to sustain.
With future robotic systems likely to hinge in part on the quality of their associated video image processing, a system has been evolved in which interior and exterior profiles of objects seen by a video camera can be computed in real time.
Automatic guided vehicles normally require some form of fixed guidance. But in work being performed at City University guidance will be by using machine processed visual information only.
The digital analysis system SAM sensorsystem for automation and measurement is suitable for inspection, workpiece handling, assembly and process control. Unlike other systems SAM performs part of the analysis with image analysis processors working in parallel at television speed.
Recognition of plane objects can be achieved by calculating the area and first and second moments of the object. In the work described a hardwired videoprocessor linked to a 16bit microprocessor enables the recognition to be achieved within 30 milliseconds.
Programming a multiaxis robotic device to follow complex contours can be difficult and time consuming. A United States University working with the automotive division of a US company has evolved a prototype system utilising a capacitive displacement transducer.
Image analysis once thought of as an ivory tower activity is being exploited by some of the commercial software houses. Ata recent SERC seminar two companies, Logica and SPL International, talked about their own development systems.
Hardwired analysers can extract position and dimension information from closed circuit television camera images, leading to the automation of both laboratory and industrial measurement.
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