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1 June 2005 Implementation of an all-optical image compression architecture based on Fourier transform which will be the core principle in the realisation of the DCT
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Abstract
Image compression aims to reduce the number of information size required to represent an image by reducing redundancies and non pertinent information so as to reduce the space in memory as well as in the medium of transmission, which will be able to plan to treat processes in real time. The compression of the data is currently the very active research object in the world. The purpose of this research is to improve quality of these compressed images and to reduce the time necessary for this operation, by developing a new techniques of compressions, like those based on optics for example. Indeed, it has been known for a long time that the coherent optics, thanks to treating parallel inherent and characteristic a convergent lens to carry out the Fourier Transform, could reduce the treatment times. In order to use the optical properties, we have developed an all-optical compression architecture based on the JPEG standards. This method is based on Fourier Transform which will be the core principle in the realisation of the DCT. After validation of our method by simulations, we will present, in this communication, its optical implementation. An all optical set-up with a convergent lens for the Fourier transform and an EASLM modulator for the opto-electronic interface have been used.
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Ayman Al Falou and Abdulsalam Alkholidi "Implementation of an all-optical image compression architecture based on Fourier transform which will be the core principle in the realisation of the DCT", Proc. SPIE 5823, Opto-Ireland 2005: Imaging and Vision, (1 June 2005); https://doi.org/10.1117/12.604881
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