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- W2100047274 abstract "Certain optical aberrations, such as defocus, can sig- nificantly degrade the signal collected by an imaging system, produc- ing images with low resolution. In images with depth-dependent detail, such degradations are difficult to remove due to their inherent spatially varying nature. In 1995, Dowski and Cathey introduced the concept of wavefront coding to extend the depth of field. They showed that wavefront coding and decoding enables quality control of such images using integrated optical-digital imaging systems. With wavefront coding, a high-resolution image can be efficiently obtained without the need to resort to expensive algorithms for spatially varying restoration. In this article, we discuss a novel and effective multiple- design-parameter approach for optimizing the processes of encoding and decoding the wavefront phase in integrated optical-digital imag- ing systems. Our approach involves the use of information metrics, such as the Strehl ratio and Fisher information, for determining the optimal pupil-phase distribution for which the resulting image is in- sensitive to certain aberrations, such as focus errors. The effective- ness of this approach is illustrated with a number of numerical sim- ulation experiments, and applications to the development of iris rec- ognition systems with high-resolution capabilities are briefly" @default.
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- W2100047274 date "2004-01-01" @default.
- W2100047274 modified "2023-09-23" @default.
- W2100047274 title "High-resolution imaging using integrated optical systems" @default.
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- W2100047274 doi "https://doi.org/10.1002/ima.20009" @default.
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