Three-dimensional integral imaging with circular non-uniform distribution

Zhang, Miao; Zhong, Zhaolong; Piao, Yongri; Song, Weitao; Liu, Yue; Wang, Yongtian

doi:10.1016/j.optlaseng.2019.105912

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…In recent years, some researchers have sought ways to improve the viewing angle based on basic research theories. Piao et al 22) used circular non-uniform distributed cameras for multi-viewpoint image acquisition, so as to obtain more light field display information of 3D scenes. Liu et al 23) used a depth sensor to acquire binocular RGB-D images and conducted image stitching, fusion and filling to obtain a fused RGB-D image of a lens with a large viewing angle field, and then mapped the fused RGB-D image into an element image array for the display of the imaging system.…”

Section: Introductionmentioning

confidence: 99%

Visual angle enlargement method based on effective reconstruction area

Wang,

Piao,

Zhang

et al. 2023

Jpn. J. Appl. Phys.

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The traditional integral imaging system has a small viewing angle, mainly due to the existence of interference pixels in the generated element image. At the same time, in the 3D reconstruction scene, the content that is not in the effective reconstruction area will also cause image crosstalk between adjacent viewpoints, which affects the display angle. In this paper, a viewing angle enlargement method based on effective reconstruction area is proposed to establish the correspondence between the point pixels in the element image and the micro-lens in the micro-lens array, and the pixel information in the pixel recombination area is derived and updated, and the effective reconstruction area is used for constraint, so as to enhance the effective use of the element image information. The experimental results show that the element image with pixel update has a larger viewing angle and clearer reconstruction content.

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Section: Introductionmentioning

confidence: 99%

Visual angle enlargement method based on effective reconstruction area

Wang,

Piao,

Zhang

et al. 2023

Jpn. J. Appl. Phys.

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show abstract

“…ECENTLY, integral imaging 3D displays have drawn much interest owing to the characteristic of reconstructing full-parallax, full-color, and real-time 3D images without coherent light [1][2][3][4]. Integral imaging is first proposed in 1908 by Lippmann, typically, the display system includes a two-dimensional (2D) display panel and lens array.…”

Section: Introductionmentioning

confidence: 99%

End-to-End Optimization of an Achromatic Diffractive Optical Element Array for Integral Imaging Three-Dimensional Display

Wang

Gao

et al. 2022

IEEE Photonics J.

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Diffractive optical element (DOE) array promises compact shape for full-parallax integral imaging threedimensional (3D) display. However, DOEs suffer from large chromatic aberration due to the strong wavelength-dependent nature of diffraction phenomena that degrade the quality of reconstructed 3D images. An end-to-end DOE optimization approach is proposed to reduce chromatic aberration for integral imaging. The end-to-end optimization framework includes RGB pre-processing convolutional neural networks and achromatic optics optimization design of rotationally symmetric DOE. An optical display model based on diffractive optics is proposed to analyze the integral imaging 3D display process for achromatic optical optimization design. The pre-processed elemental image arrays are modulated by an optimized DOE array to reconstruct the achromatic 3D images. A 3D artifacts scene without chromatic aberration is reconstructed in different views with the proposed method, and both peak signal to noise ratio (PSNR) and structural similarity (SSIM) are improved compared to the conventional Fresnel lens DOE.

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An integrated calibration technique for variable-boresight three-dimensional imaging system

Liu¹,

Li²

2022

Optics and Lasers in Engineering

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Three-dimensional integral imaging with circular non-uniform distribution

Cited by 6 publications

References 27 publications

Visual angle enlargement method based on effective reconstruction area

Visual angle enlargement method based on effective reconstruction area

End-to-End Optimization of an Achromatic Diffractive Optical Element Array for Integral Imaging Three-Dimensional Display

An integrated calibration technique for variable-boresight three-dimensional imaging system

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