论文信息 - Generation of sigmoid probability functions by clipped differential speckle detection

Generation of sigmoid probability functions by clipped differential speckle detection

Many low-level image processing problems can be solved with optimisation techniques such as simulated annealing. However, these iterative stochastic techniques are not adapted to real-time applications. We suggest the use of clipped differential detection of speckle with photothyristors as simple optoelectronic processing elements that can be massively integrated to implement parallel simulated annealing. This processing element has optical input/output windows and provides random outputs according to controllable sigmoid probability laws required for simulated annealing. Results show that operating speeds of 100 kHz are achievable with present technology.

Pierre Chavel | Paul Heremans | M. Kuijk | G Prémont | P. Lalanne

[1] C. D. Gelatt,et al. Optimization by Simulated Annealing , 1983, Science.

[2] Patrick Garda,et al. Gaussian random number generation by differential detection of speckles , 1995 .

[3] P Chavel,et al. Optoelectronic retinas that perform stochastic global optimization. , 1993, Optics letters.

[4] Patrick Garda,et al. Optoelectronic devices for Boltzmann machines and simulated annealing , 1993 .

[5] Donald Geman,et al. Stochastic Relaxation, Gibbs Distributions, and the Bayesian Restoration of Images , 1984, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[6] R. Vounckx,et al. Fast and Sensitive Two-Terminal Double-Heterojunction Optical Thyristors , 1992, ESSDERC '92: 22nd European Solid State Device Research conference.

[7] G. M. Morris,et al. Generation of random arrays using clipped laser speckle. , 1986, Applied optics.

[8] J. Dainty. Laser speckle and related phenomena , 1975 .

[9] G. M. Morris. Optical Computing By Monte Carlo Methods , 1984 .

[10] Gustaaf Borghs,et al. Image transcription between arrays of N-p-n-P optoelectronic switches , 1992 .

[11] Paolo Carnevali,et al. Image Processing by Simulated Annealing , 1985, IBM J. Res. Dev..

[12] P. Carnevali,et al. Image processing by stimulated annealing , 1985 .

[13] A. L. Lentine,et al. Symmetric self-electrooptic effect device : optical set-reset latch, defferential logic gate and differential modulator/detector , 1989 .