Title :
Towards a real time sensor for focusing through scattering media
Author :
Laforest, T. ; Verdant, A. ; Dupret, A. ; Gigan, Sylvain ; Ramaz, F.
Author_Institution :
DRT, CEA, Grenoble, France
Abstract :
Materials such as milk, paper, white paint and biological tissue scatter light. As a result, transmitted light intensity through these materials is a speckle pattern, having often a short persistence time. Recently, advances in optics to control light through disordered media have reported an increasing efficiency. Consequently, that allows us to foresee a real time sensor that achieve such task in an integrated way. Thereby, in this perspective, we propose a genetic algorithm implemented with pyramidal approach in a CMOS image sensor, which matches integrated data processing and short persistence time. Our algorithm have been simulated with a faithful model. Results show at least a gain of a factor 10 compared to the state of the art algorithms.
Keywords :
CMOS image sensors; genetic algorithms; CMOS image sensor; biological tissue scatter light; genetic algorithm; integrated data processing; real-time sensor; scattering media; speckle pattern; transmitted light intensity; Arrays; Focusing; Genetic algorithms; Media; Optical imaging; Optical scattering; Optimization;
Conference_Titel :
Sensors, 2012 IEEE
Conference_Location :
Taipei
Print_ISBN :
978-1-4577-1766-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2012.6411590