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Ryoichi Horisaki Yoshizumi Nakao Takashi Toyoda Keiichiro Kagawa Yasuo Masaki Jun Tanida 《Optical Review》2009,16(3):241-246
A compact system of the thin observation module by bound optics (TOMBO) imager based on compound-eye imaging has been constructed
to demonstrate its advantages over single-eye imaging systems such as thinner hardware. To reconstruct a high-resolution image
from low resolution images captured by the compound-eye optics, we propose an image restoration scheme based on the iterative
back-projection algorithm with depth map estimated from the disparities on the captured image. The scheme includes suppression
of unit-by-unit color shift caused by the offset microlenses and the color filters on the commercial image sensors and deblurring
of defocus by geometrical optics using the depth map. In the experiment, three-dimensional objects were captured by the TOMBO
imager and reconstructed with the scheme. After the processing, the power spectrum of the captured image was improved by up
to 19 dB, and the power spectrum of the effect of the color shift was reduced by 7 dB. 相似文献
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