Kwon, Yongjoon Kim, Donghwan Kim, Sung-Kyu 2024-01-19T22:33:19Z 2024-01-19T22:33:19Z 2021-09-03 2018-06 0091-3286 https://pubs.kist.re.kr/handle/201004/121315 For a multiview three-dimensional (3-D) display system using a two-dimensional (2-D) flat panel display, it is very important to attach accurately an optical plate such as a parallax barrier and a lenticular lens sheet onto a 2-D display panel for the best quality of 3-D images. In most practical cases, however, misalignment occurs since it is too difficult to align perfectly in assembly process. In general, angular misalignment results in the deterioration of 3-D image quality by some increase of crosstalk, so that the resulting 3-D images are even distorted as tilted ones. To correct distorted 3-D images, we propose a method to skew 3-D objects before each image for multiviews is taken by multiple cameras. For this, a formula is derived to determine the amount of skewing 3-D objects. And by using it, some experimental results are shown that distorted 3-D images in a misaligned multiview 3-D display system are completely corrected. Since skewing 3-D objects implies a coordinate transformation of 3-D space, this method can be also used in the manipulation of 3-D image data obtained from a depth camera in order to correct the distorted 3-D images caused by angular misalignment. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. English SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS AUTOSTEREOSCOPIC 3D DISPLAYS LENTICULAR DISPLAYS TECHNOLOGIES CALIBRATION Correction of distorted 3-D images for misalignment of an optical structure in a multiview 3-D display system Article 10.1117/1.OE.57.6.061602 1 OPTICAL ENGINEERING, v.57, no.6 OPTICAL ENGINEERING 57 6 scie scopus 000439296600002 2-s2.0-85041064413 Optics Optics Article AUTOSTEREOSCOPIC 3D DISPLAYS LENTICULAR DISPLAYS TECHNOLOGIES CALIBRATION autostereoscopic display multiview three-dimensional display misalignment correction of three-dimensional image