نتایج جستجو برای: optical axis

تعداد نتایج: 363895  

Journal: :Journal of biomedical optics 2012
Lenny A Romero María S Millán Zbigniew Jaroszewicz Andrzej Kolodziejczyk

The aged human eye is commonly affected by presbyopia, and therefore, it gradually loses its capability to form images of objects placed at different distances. Extended depth of focus (EDOF) imaging elements can overcome this inability, despite the introduction of a certain amount of aberration. This paper evaluates the EDOF imaging performance of the so-called peacock eye phase diffractive el...

2002
Mohamed Bénallal Jean Meunier

To answer the industrial need for simple camera calibration procedure, we propose a new method that requires a simple calibration object composed simply of a box and two crosses. The box is opened in the front where a large cross, made of wires, is attached while another is drawn (or attached) at the bottom. Both crosses are perfectly aligned similarly to a viewfinder. The viewfinder is first o...

Journal: :Journal of Advanced Mechanical Design, Systems, and Manufacturing 2008

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