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학술지 Calibration of a multiview display with a tilted parallax barrier for reduction of nonlinear extrinsic crosstalk
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저자
김준수, 음호민, 윤국진, 신홍창, 이광순, 서정일
발행일
202211
출처
Applied Optics, v.61 no.31, pp.9112-9123
ISSN
1559-128X
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1364/AO.470347
협약과제
21HH4900, [전문연구실] 이머시브 미디어 전문연구실, 서정일
초록
Multiview displays, which are capable of displaying different view-images for viewers at different positions, can suffer from undesirable view-image mixing, called crosstalk. In this paper, we propose a method to minimize a class of crosstalk that occurs due to misalignment of flat panel displays and parallax barriers that constitute multiview displays. More specifically, our method is aimed at cases where flat panel displays and parallax barriers are nonparallel. First, we introduce our framework, which associates homography matrices to sets of pixels visible through parallax barriers. Then, we propose an iterative method for finding pixels that are visible for a view-point. By using a stripe test pattern, the homography matrix that corresponds to a set of visible pixels can be found by monitoring the deformation of the stripe test pattern. Last, we experimentally check the validity of the iterative method and demonstrate that the proposed method successfully corrects the geometric distortion of a 3D image.
KSP 제안 키워드
3D Image, Different positions, Geometric Distortion, Iterative method, Multiview display, Parallax barrier, flat panel display(FPD), homography matrix, test pattern