Extended depth-of-field 3D endoscopy with synthetic aperture integral imaging using an electrically tunable focal-length liquid-crystal lens

Wang, Yu-Jen; Shen, Xin; Lin, Yi-Hsin; Javidi, Bahram

doi:10.1364/ol.40.003564

Cited by 62 publications

(23 citation statements)

References 18 publications

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“…Integral imaging display is also regarded as an important three‐dimensional (3D) display . The integral imaging display, which does not require any special glasses or coherent light, presents true 3D images with full parallax and continuous viewpoints . Therefore, the integral imaging display has been adopted to realize dual‐view 3D display .…”

Section: Introductionmentioning

confidence: 99%

“…6 The integral imaging display, which does not require any special glasses or coherent light, presents true 3D images with full parallax and continuous viewpoints. [7][8][9][10][11][12][13][14][15][16] Therefore, the integral imaging display has been adopted to realize dual-view 3D display. 17 The dual-view integral imaging (DVII) display presents two different 3D images in the left and right viewing directions, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Crosstalk‐free dual‐view integral imaging display

Liu

Deng

2019

J Soc Info Display

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We propose a crosstalk‐free dual‐view integral imaging display. It is composed of a display panel, a barrier array, and a micro‐lens array. The central barrier is located at the vertical central axes of the display panel and the micro‐lens array to split the element image array and the viewing zone. Moreover, other barriers are located at the margins of the elemental images and corresponding micro‐lenses to eliminate the crosstalk. The lights emitting from the left and right half of the element image array are modulated by the left and right half of the micro‐lens array to reconstruct the right and left viewing zones, respectively. A prototype of the proposed dual‐view integral imaging display is developed, and good experimental results agree well with the theory.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crosstalk‐free dual‐view integral imaging display

Liu

Deng

2019

J Soc Info Display

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“…Therefore, many types of research and investigation are performed to find new ways to achieve visual realism in 3D display . Some approaches endeavor to improve the performance and image quality of 3D imaging display, such as the experimental demonstration to perform an extended depth of field (DOF) in integral 3D imaging using a single large aperture liquid crystal lens or applying the gradient amplitude modulating method for the DOF enhancement . With this intention, there is great potential to explore this method to increase the resolution of a 3D image reconstruction, the use of normalized computational technique, optical modulation method, photon counting 3D imaging technique, and the optical coherence tomography technique for structural investigation have been acquiring increasing relevance to medical and biological applications.…”

Section: Introductionmentioning

confidence: 99%

A microring conjugate mirror design and simulation for naked‐eye 3D imaging application

Pornsuwancharoen

Youplao

Tamee

et al. 2018

Micro & Optical Tech Letters

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We present a design of micro‐conjugate mirror using a nonlinear microring resonator, which is made of GaAsInP/P, is rapidly achieving widespread option in several three‐dimensional (3D) imaging applications. By exploiting the conjugate mirror properties, the 3D light probes can be formed by the whispering gallery modes (WGM) in which the WGM probe is also available within a nonlinear microring resonator. It is important to understand, these light probes use the similar functional principle to provide structured light through the object, just as the reference beams to light up and develop a hologram using the holographic method. The interference of 2 beams constructs the 3D image which can be seen by the naked‐eye while providing the 3D perception. The simulation results obtained from the transmission of 3D imaging are processed using MATLAB and OptiFDTD are compared and analyzed. These convincing theoretical results suggest that the proposed method can be used in practice to realize the naked‐eye 3D imaging with convincing visual perception and efficient transmission while providing the ultimate mode of convenience for viewers.

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“…In contrast, some other 3D sensing techniques, such as the time-of-flight camera [10] or structured light techniques [11][12], may not work well for long range objects. Integral imaging is a promising technique that has been used in various fields, such as 3D sensing [13], 3D displays [14][15] [16] [17], holographic display [18], 3D imaging of objects in turbid water [19], 3D tracking [20] and 3D target detection and recognition [21] [22], photon counting 3D sensing and visualization [23][24] [25], 3D microscopy [26][27] [28] [29][30] [31] and endoscopy for micro scale 3D imaging and display [32] [33], head tracking 3D display [34], 3D augmented reality [35][36] [37] [38], to cite a few.…”

Section: Introductionmentioning

confidence: 99%

Multidimensional Optical Sensing and Imaging System (MOSIS): From Macroscales to Microscales

et al. 2017

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Abstract-Multidimensional optical imaging systems for information processing and visualization technologies have numerous applications in fields such as manufacturing, medical sciences, entertainment, robotics, surveillance, and defense. Among different three-dimensional (3D) imaging methods, integral imaging is a promising multiperspective sensing and display technique. Compared with other 3D imaging techniques, integral imaging can capture a scene using an incoherent light source and generate real 3D images for observation without any special viewing devices. This review paper describes passive multidimensional imaging systems combined with different integral imaging configurations. One example is the integral imaging based Multidimensional Optical Sensing and Imaging Systems (MOSIS), which can be used for 3D visualization, seeing through obscurations, material inspection, and object recognition from micro scales to long range imaging. This system utilizes many degrees of freedom such as time and space multiplexing, depth information, polarimetric, temporal, photon flux and multispectral information based on integral imaging to record and reconstruct the multidimensionally integrated scene. Image fusion may be used to integrate the multidimensional images obtained by polarimetric sensors, multispectral cameras, and various multiplexing techniques. The multidimensional images contain substantially more information compared with two-dimensional (2D) images or conventional 3D images. In addition, we present recent progress and applications of 3D integral imaging including human gesture recognition in the time domain, depth estimation, mid-wave infrared photon counting, 3D polarimetric imaging for object shape and material identification, dynamic integral imaging implemented with liquid crystal devices, and 3D endoscopy for healthcare applications.

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Extended depth-of-field 3D endoscopy with synthetic aperture integral imaging using an electrically tunable focal-length liquid-crystal lens

Cited by 62 publications

References 18 publications

Crosstalk‐free dual‐view integral imaging display

Crosstalk‐free dual‐view integral imaging display

A microring conjugate mirror design and simulation for naked‐eye 3D imaging application

Multidimensional Optical Sensing and Imaging System (MOSIS): From Macroscales to Microscales

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