An auto-focusing method in a microscopic testbed for optical discs
نویسندگان
چکیده
منابع مشابه
An Auto-Focusing Method in a Microscopic Testbed for Optical Discs
An auto-focusing method in a digital image system is demonstrated that uses a standard deviation of pixel gray levels as a feedback signal. In this system, an optical microscope and a charge coupled device (CCD) camera are used to create clear pit images of optical discs. A dynamic focusing scheme is designed in the system-control software, which is able to eliminate environmental disturbances ...
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ژورنال
عنوان ژورنال: Journal of Research of the National Institute of Standards and Technology
سال: 2000
ISSN: 1044-677X
DOI: 10.6028/jres.105.046