Influence of a perturbation in a double phase-encoding system
作者： François Goudail , Franck Bollaro , Bahram Javidi , Philippe Réfrégier
关键词: Optics 、 Stochastic process 、 Perturbation (astronomy) 、 Phase retrieval 、 Computer simulation 、 Fourier transform 、 Decoding methods 、 Amplitude 、 Computer science 、 Image processing
摘要: We consider the recently proposed double phase-encoding system [Opt. Lett.20, 767 (1995)]. study robustness of decoding process, that is, way in which a perturbation coded image modifies decoded image. demonstrate amplitude signal-to-noise ratio (SNR) is strictly (and not only statistically) equal to SNR for different kinds coded-image perturbations. In optical implementations intensity measured at output system. show there exists simple relation between and this quasi-independent nature perturbation. The results presented could provide efficient determining precision level components necessary reach predefined quality
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