Resolution Enhanced Computational Integral Imaging Reconstruction by Using Boundary Folding Mirrors

Piao, Yongri; Xing, Lili; Zhang, Miao; Lee, Min Chul

doi:10.3807/josk.2016.20.3.363

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…In consideration of LC birefringence, the tunable focusing properties are the major advantage of the LC microlens. The focal length equation of the LC microlens is

, where

means diameter of the circular electrode pattern on the top substrate,

is the refractive index difference between the center area and the margin area in LC layer, and

is the thickness of the LC layer [ 14 ]. The white light is the source.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Resolution Improvement of Light Field Imaging via a Nematic Liquid Crystal Microlens with Added Multi-Walled Carbon Nanotubes

Peng

et al. 2020

Sensors

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A relatively simple method to improve the image resolution of light field based on a liquid crystal (LC) microlens doped with multi-walled carbon nanotubes (MWCNTs) was developed and evaluated. As the nanoparticles were doped in LC, its electro-optical features could enhance, leading to a short response time compared to the pure LC microlens. With the maximum use of the proposed LC microlens, a method combining aperiodicity extraction and weighted average algorithm was adopted to realize the high-resolution light field imaging. The aperiodicity extraction method was proposed, which could effectively improve resolution of view angle image. For synthesizing the full resolution image at 0 Vrms and the extracted view angle image of light field imaging at 2.0 Vrms, the final high-resolution light field imaging could be obtained in a short time by weighted average algorithm. In this way, the common problem of low resolution in light field imaging could be solved. This proposed method was in good agreement with our experimental results. And it was also in line with the development of the trend of the smart imaging sensor combining algorithm with hardware.

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“…In consideration of LC birefringence, the tunable focusing properties are the major advantage of the LC microlens. The focal length equation of the LC microlens is

, where

means diameter of the circular electrode pattern on the top substrate,

is the refractive index difference between the center area and the margin area in LC layer, and

is the thickness of the LC layer [ 14 ]. The white light is the source.…”

Section: Resultsmentioning

confidence: 99%

“…Some studies have focused on the layout of optical glass microlens array, such as moving lens array technique [ 11 , 12 ]. And the other research hotspots are the extraction of pixel points [ 13 , 14 ]. Typically, the common method is the periodicity extraction algorithm, which is the most easy and fast mainstream approach.…”

Section: Introductionmentioning

confidence: 99%

Resolution Improvement of Light Field Imaging via a Nematic Liquid Crystal Microlens with Added Multi-Walled Carbon Nanotubes

Peng

et al. 2020

Sensors

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show abstract

“…Integral imaging (II) has been researched to implement a realistic three-dimensional (3D) display for a providing full-color 3D images with full-parallax and continuous-viewing points [1][2][3][4][5][6][7][8][9][10]. II has consisted of two procedures of acquisition and reconstruction.…”

Section: Introductionmentioning

confidence: 99%

Fast Numerical Reconstruction of Integral Imaging Based on a Determined Interval Mapping

2023

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In this paper, a fast numerical reconstruction of the integral imaging based on a determined interval mapping is proposed. To reduce the computation time, the proposed method employs the determined interval mapping instead of the use of magnification. In the numerical reconstruction procedure, the acquired elemental image array (EIA) from the 3D object is displayed. The flipped elemental image (EI)s are numerically formed by the virtual pinhole array. Then, the determined interval depending on the reconstruction plane is calculated and applied to each flipped EI. These flipped EIs are shifted to match the determined interval at the reconstruction plane and superimposed together. After this superimposed image is divided by the number of the superposition, the position error between the location of the shifted EI and the pixel position of the reconstruction plane is corrected by interpolation. As a result, the refocused image depending on the reconstruction plane can be reconstructed rapidly. From the experimental result, we confirmed that the proposed method largely decreased the computation time compared with the conventional method. In addition, we verified that the quality of the reconstruction by the proposed method is higher than the conventional method by the use of the structural similarity index method.

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Effect of width of light source on viewing angle of one-dimensional integral imaging display

Deng

et al. 2018

Optik

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Resolution Enhanced Computational Integral Imaging Reconstruction by Using Boundary Folding Mirrors

Cited by 7 publications

References 13 publications

Resolution Improvement of Light Field Imaging via a Nematic Liquid Crystal Microlens with Added Multi-Walled Carbon Nanotubes

Resolution Improvement of Light Field Imaging via a Nematic Liquid Crystal Microlens with Added Multi-Walled Carbon Nanotubes

Fast Numerical Reconstruction of Integral Imaging Based on a Determined Interval Mapping

Effect of width of light source on viewing angle of one-dimensional integral imaging display

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