Wide-Viewing-Angle Integral Imaging System with Full-Effective-Pixels Elemental Image Array

• Published in: Micromachines (Basel) Vol. 14; no. 1; p. 225
• Main Authors: Liu, Zesheng, Li, Dahai, Deng, Huan
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 15-01-2023; MDPI
• Subjects: Arrays; effective pixels; elemental image array; Imaging; integral imaging; Pixels; Viewing; viewing angle; viewing angle; effective pixels; elemental image array; integral imaging
• ISSN: 2072-666X; 2072-666X
• DOI: 10.3390/mi14010225

There exists a defect of the narrow viewing angle in the conventional integral imaging system. One reason for this is that only partial pixels of each elemental image contribute to the viewing angle and the others cause image flips. In this paper, a wide-viewing-angle integral imaging system with a full-effective-pixels elemental image array (FEP-EIA) was proposed. The correspondence between viewpoints and pixel coordinates within the elemental image array was built up, and effective pixel blocks and pixels leading to flipping images were deduced. Then, a pixel replacement method was proposed to generate the FEP-EIAs, which adapt to different viewing distances. As a result, the viewing angle of the proposed integral imaging system was effectively extended through the replacement of the pixels, which caused the image flips. Experiment results demonstrated that wide viewing angles are available for the proposed integral imaging system regardless of the viewing distances.