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Z axis measuring with autofocus works by sensing the contrast level in the image of your part. But many surfaces (such as glass, clear plastic, and mirror-like finishes) create images with extremely low, or worse, nonexistent contrast. How can these be measured?
A rich digital archive of British life in the 1980s has been brought back to life by researchers from the UK and the US.
http://arks.princeton.edu/ark:/88435/5d86p097k One of the finest manuscripts in the East Asian Library’s Rare Book Collection is a 30-volume edition of the Japanese classic, the Heike monogatari .
From Intelligent Perception Welcome to Intelligent Perception !
Don Williams has brought his decades of experience in digital imaging and extensive worldwide involvement in the digital archiving community together to found Image Science Associates.
Concepts in Digital Imaging Technology Charge-coupled devices (CCDs), like microprocessor and memory integrated circuits, are fabricated on silicon wafers in a series of elaborate steps using photolithography to define and build various functional elements within the microcircuitry. Each wafer contains tens to hundreds of identical devices, each fully capable of producing a single CCD chip for use in digital cameras.
Camera scanning basics