Abstract

A wide-angle view can be conventionally acquired with a monocular camera by means of a fish-eye lens. However, the acquired image using the fish-eye lens is generally distorted with a view angle of less than 180 deg. Thus, a multi-angle-view monocular camera using a polarization image sensor to capture distortion-free images of multi-angle views with wide viewing angles is proposed here where the polarization image sensor has four different directional polarizing filters on every four pixels. Using optical elements such as a beam splitter and a polarizing filter, three independent views can be superpositionally captured by the polarization sensor. The three view images can be reconstructed from the superpositioned polarization images using a reconstruction method based on a matrix manipulation. A prototype multi-angle-view monocular camera is fabricated and shows that the three views can be reconstructed using the reconstruction method.

© 2019 Optical Society of America

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