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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:22 |
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Conference: Bucharest University Faculty of Physics 2016 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
Artificial enhancement of fill factor and resolution for monochrome cmos sensor array
Authors:
T. VASILE (1), V. DAMIAN (1), Madalina VASILE (2), Daniela COLTUC (3)
Affiliation:
1) Lasers, National Institute for Laser Plasma and Radiation Physics, P.O.Box MG-36, RO-077125 Bucharest-Magurele, Romania
2)University of Bucharest, Faculty of Physics, P.O.Box MG-11, Bucharest-Magurele, Romania
3)Department of Applied Electronics and Information Technology, Univ. Politehnica Bucharest, Romania
E-mail
tiberius.vasile@inflpr.ro
Keywords:
CMOS sensor, fill factor, resolution, pixel density
Abstract:
In this paper we present an electromechanical method for the simultaneous increase of both resolution and fill factor, of a conventional CMOS sensor array. To achieve this improvement we scan a photo lens image plane with the surface of a commercial CMOS sensor, placed perpendicular on the system optical axis at 45 degrees to the horizontal. The method is designed to take advantage of the image sensor inter-pixel distance and the higher diagonal resolution. For our experiment we use two images of the same scene, distanced from each other, on the horizontal axis of the image plane, with half of a diagonal length of an effective pixel area of the sensor. The images are combined, using a method of pixel interlacing, into one new image with higher resolution and fill factor.
References:
[1]. Human Visual Orientation, Ian P. Howard, John Wiley & Sons, 1982 - Science - 697 pages
[2]. How Small Should Pixel Size Be?, Ting Chen, Peter Catrysse, Abbas El Gamal and Brian Wandell, Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE) Volume: 3965, Pages: 451-459, Published: 2000
[3]. Resolution and Light Sensitivity Tradeoff with Pixel Size, Joyce Farrell, Feng Xiao, Sam Kavusi, Proceedings of SPIE 6069, Digital Photography II, 60690N (10 February 2006); doi: 10.1117/12.646805
Acknowledgement:
This work has been financed by the National Authority for Research and Innovation in the frame of Nucleus programme- contract 4N/2016.
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