Image processing using polarization-encoded optical shadow casting

Author

Awwal, Abdul Ahad Sami ; Karim, Mohammad A.

Author_Institution

Dept. of Electr. Eng., Dayton Univ., OH, USA

fYear

1989

fDate

22-26 May 1989

Firstpage

1119

Abstract

Two very powerful space-variant image processing operations (edge detection and median filtering) are realized using a polarization-encoded optical shadow-casting system. A novel spatial mask is used to detect image edges in all directions. The shadow-casting algorithm is utilized to determine the encodings for the input images to be processed. For illustration purposes, a binary image with edges in various orientations is considered as an input to the edge-detection system. The edge detector developed not only is a parallel processor but requires far fewer LEDs (two for unpolarized codes and one for polarized codes) than that of J. Tanida and Y. Ichioka (Appl. Opt., vol.27, p.2926, 1988)

Keywords

filtering and prediction theory; light polarisation; optical information processing; picture processing; LEDs; algorithm; binary image; edge detection; encodings; median filtering; parallel processor; polarisation-encoded optical shadow-casting; space-variant image processing; spatial mask; Casting; Detectors; Filtering; Image coding; Image edge detection; Image processing; Light emitting diodes; Optical filters; Optical polarization; Optimized production technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1989. NAECON 1989., Proceedings of the IEEE 1989 National

Conference_Location

Dayton, OH

Type

conf

DOI

10.1109/NAECON.1989.40349

Filename

40349