Title :
Some new results in hybrid acousto-optic processing
Author :
Goutin, P. ; Logette, P. ; Rouvaen, J.M. ; Bridoux, E.
Author_Institution :
Department OAE, Valenciennes Univ., France
Abstract :
A fully programmable hybrid acousto-optic convolving processor has been designed for transversal and recursive filtering applications. This system is used for specific signal processing tasks. Its performance (computing time, available precision, noise limitations) is characterized for each task. The main results are reported, with emphasis on transformations pertaining to the image processing field (bidimensional convolution, gradient and Laplacian operators, discrete Fourier transform, discrete cosine transform). Future applications are discussed, including the implementation of algorithms of the JPEG and MPEG classes and work toward the design of hybrid acousto-optic neural networks
Keywords :
acousto-optical devices; discrete cosine transforms; fast Fourier transforms; optical correlation; optical neural nets; signal processing equipment; Laplacian operators; available precision; bidimensional convolution; computing time; convolving processor; discrete Fourier transform; discrete cosine transform; fast algorithms; fully programmable; gradient operators; hybrid acousto-optic neural networks; hybrid acousto-optic processing; image processing; noise limitations; performance; recursive filtering; transversal filters; Convolution; Discrete Fourier transforms; Discrete cosine transforms; Filtering; Image processing; Laplace equations; Process design; Signal processing; Signal processing algorithms; Transversal filters;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275959
