An Electrooptic Multiple-Quantum-Well Device for Image Processing

Author

Vianna, Celso J. ; de Souza, E.A.

Author_Institution

Nucleo de Fis., Univ. Fed. de Sergipe, Sao Cristovao

Volume

45

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

603

Lastpage

608

Abstract

We investigated the use of an analog self-electrooptic effect device based on GaAs multiple quantum wells as an image processor chip to early vision processes. We focused our attention at the edge detection process using layouts of photodetectors to extract Laplacians of images. Laplacians of linear, constant, step, and Gaussian intensity profiles agree with the expected values. These results show that the device works properly as an edge detector.

Keywords

Gaussian distribution; III-V semiconductors; Laplace equations; edge detection; electro-optical devices; electro-optical effects; feature extraction; gallium arsenide; optical images; optical materials; photodetectors; quantum well devices; semiconductor quantum wells; GaAs; Gaussian intensity profile; Laplacian extraction; analog self-electrooptic effect device; edge detection process; image processor chip; multiple-quantum-well device; photodetectors; vision process; Detectors; Electrooptic devices; Gallium arsenide; Humans; Image edge detection; Image processing; Laplace equations; Photodetectors; Physics; Quantum well devices; Convolution; machine vision; optical image processing; quantum-well (QW) devices;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2009.2013109

Filename

4897239