&lt;title&gt;Single-lens stereoscopy: a historical and technical overview&lt;/title&gt;

Carter, William J.; Weissman, Michael A.

doi:10.1117/12.237460

Cited by 5 publications

(3 citation statements)

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“…Practical microstereoscopic cameras will have to capture left and right perspectives simultaneously, but with an interocular separation of only a few millimeters. We expect that the solution to this constraint conflict will lie in the area of "single-lens stereo" [23], in which left and right perspectives are obtained by employing left and right off-center subapertures added as a modification to an ordinary camera lens. This approach has the added advantage of automatically performing center-of-interest compensation, since the prismatic effect of the lens with off-center aperture produces an image shift that is exactly equivalent to the effect of proper CCD movement.…”

Section: H Camera Requirementmentioning

confidence: 99%

Just enough reality: comfortable 3-D viewing via microstereopsis

Siegel

Nagata²

2000

IEEE Trans. Circuits Syst. Video Technol.

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Abstract-We address human factors and technology issues for the design of stereoscopic display systems that are natural and comfortable to view. Our title "just enough reality" hints at the contrast between the popularly perceived requirements for strict "virtual reality" and the expert's pragmatic acceptance of "sufficient reality" to satisfy the human interface requirements of real-world applications. We first review how numerous perceptions and illusions of depth can be exploited to synergistically complement binocular stereopsis. Then we report the results of our experimental studies of stereoscopy with very small interocular separations and correspondingly small on-screen disparities, which we call "microstereopsis." We outline the implications of microstereopsis for the design of future stereoscopic camera and display systems, especially the possibility of achieving zoneless autostereoscopic displays. We describe a possible class of implementations based on a nonlambertian filter element, and a particular implementation that would use an electronically switched louver filter to realize it.

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Section: H Camera Requirementmentioning

confidence: 99%

Just enough reality: comfortable 3-D viewing via microstereopsis

Siegel

Nagata²

2000

IEEE Trans. Circuits Syst. Video Technol.

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“…It seemed also possible to strengthen depth perception by understanding and taking advantage of another ten or so visual illusions whereby a sense of depth is stimulated by suitably viewed flat images. The surprise was that extremely small interocular separations [1], only a few percent of the nominal 60-65 mm for human adults, produces on-screen disparities that are adequate to stimulate depth perception. This observation is the main topic of Section 3, How Much is Just Enough?…”

Section: Introductionmentioning

confidence: 98%

<title>Perceptions of crosstalk and the possibility of a zoneless autostereoscopic display</title>

Siegel

2001

SPIE Proceedings

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Overlaid stereo image pairs, viewed without stereo demultiplexing optics, are not always perceived as a ghosted image: if image generation and display parameters are adjusted so that disparities are small and limited to foreground and background regions, then the perception is rather more of blurring than of doubling. Since this blurring seems natural, comparable to the blurring due to depth-of-focus, it is unobjectionable. In contrast, the perception of ghosting seems always to be objectionable. Now consider the possibility that there is a perceptual regime in which disparity is small enough that perception of crosstalk is as blurring rather than as ghosting, but it is large enough to stimulate depth perception. If such a perceptual region exists, then it might be exploited to relax the strict "crosstalk minimization" requirement normally imposed in the engineering of stereoscopic displays. This paper reports experiments that indicate that such a perceptual region does actually exist. We suggest a stereoscopic display engineering design concept that illustrates how this observation might be exploited to create a zoneless autostereoscopic display. By way of introduction and motivation, we begin from the observation that, just as color can be shouted in primary tones or whispered in soft pastel hues, so stereo can be shoved in your face or raised ever so gently off the screen plane. We review the problems with "in your face stereo", we demonstrate that "just enough reality" is both gentle and effective in achieving stereoscopy's fundamental goal: resolving the front-back ambiguity inherent in 2D projections, and we show how this perspective leads naturally to the relaxation of the requirement for crosstalk reduction to be the main engineering constraint on the design of stereoscopic display systems.

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“…The Levin's method relies heavily on the specific image priors, which results in increasing noise sensitivity and distance ambiguity. The dual aperture system was proposed in 1677 [4], and various techniques using orthogonal polarizers, complementary filters, and electro-optical blocks were developed. Recently, Bae proposed a means to measure the depth from a very small lens system with a dual aperture [5].…”

Section: Introductionmentioning

confidence: 99%

Computational Approach to Color Overlapped Integral Imaging for Depth Estimation

Lee¹,

Lim²,

Kim

et al. 2014

IEIE Transactions on Smart Processing and Computing

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Abstract:A computational approach to depth estimations using a color over lapped integral imaging system is presented. The proposed imaging system acquires multiple color images simultaneously through a single lens with an array of multiple pinholes that are distributed around the optical axis. This paper proposes a computational model of the relationship between the real distance of an object and the disparity among different color images. The proposed model can serve as a computational basis of a single camera-based depth estimation.

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<title>Single-lens stereoscopy: a historical and technical overview</title>

Cited by 5 publications

References 0 publications

Just enough reality: comfortable 3-D viewing via microstereopsis

Just enough reality: comfortable 3-D viewing via microstereopsis

<title>Perceptions of crosstalk and the possibility of a zoneless autostereoscopic display</title>

Computational Approach to Color Overlapped Integral Imaging for Depth Estimation

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