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>Distortion correction of reconstructed three-dimensional image in an integral imaging system combined with a single imaging lens
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Distortion correction of reconstructed three-dimensional image in an integral imaging system combined with a single imaging lens
The integral imaging (II) system combined with a single imaging lens has provided many advantages to improve system performance and to extend its application area. When a single imaging lens forms an image, a depth and size distortion is a necessary result of imaging by lens law. Therefore the II system, employing a single imaging lens, is also accompanied with similar distortions. In the II system, the depth and size of the reconstructed image can be adjusted by parallax image array (PIA) scaling. With regard to these scaling effects, the distortion correction method in the II system combined with a single imaging lens has been investigated. The differential transfer function (DTF) is defined and theoretically derived for mathematical analysis of the distortion. By using DTF, the PIA scaling conditions for the distortion correction in the II system combined with the single imaging lens is obtained. Experimental results are presented and discussed in detail.
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