Session Index

Holography and Information Processing

Poster Session I
Friday, Dec. 3, 2021  14:00-16:00
Room: Corridor
Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0575
Paper No.  2021-FRI-P0401-P001
Wen-Kai Lin The Study of Holographic Curved Waveguide Combiner
Wen-Kai Lin;Ching-Hao Chen;Shao-Kui Zhou;Wei-Chia Su

The AR device with a holographic curved waveguide combiner is proposed. The device utilized the conjugated recording method to reduce the aberration caused by the curved reflection surfaces. Furthermore, the ghost noise can be avoided by arranging the dimension and position of the HOEs strategically.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0065
Paper No.  2021-FRI-P0401-P002
Ming-Hsuan Wu Scattering-type lensfree encryption system for face recognition
Ming-Hsuan Wu;Ya-Ti Chang Lee;Chung-Hao Tien

We proposed a lensfree face recognition system with scattering encryption by means of an optical diffuser. The facial images were encrypted to be unrecognizable amid the imaging chain of a lensfree system. The encrypted intermediate images can be identified by the ResNet18, a neural network model. We experimentally implemented the system and achieve 100% accuracy subject to10 classes(subjects).


Manuscript ID.  0550
Paper No.  2021-FRI-P0401-P003
Jun-Ming Bai Analysis of Measurement Uncertainty for Measuring Focal Length of Spherical Lenses using Digital-grating Moiré Technique
Jun-Ming Bai;Chien-Yuan Han;Ju-Yi Lee;Chien-Hung Yeh;Jing-Heng Chen

In this research, we analysis the measurement uncertainty of digital-grating moiré technique for the measurement of lens focal length. The results reveal that the technique can be applied for regular commercial spherical lenses with a measurement uncertainty less than 1.6 mm within a measurement distance of 2 m. The proposed methodology provides a valuable reference for related measurement techniques.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0254
Paper No.  2021-FRI-P0401-P004
Ssu-Chia He Integrating Digital Holography and Fringe Projection Profilometry for Measuring Integrated Circuits
Ssu-Chia He;Han-Yen Tu;Chung-Hsuan Huang;Chau-Jern Cheng

This research aims to integrate the two technologies of digital holography and fringe projection profilometry within the same system. The integrated system is capable of measuring the three-dimensional surface of the object. Utilizing the integrated system results in more complete three-dimensional surface information.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0114
Paper No.  2021-FRI-P0401-P005
Ke-Cheng Huang Study of the modulated frequency of heterodyne light source with various grating moving speed
Ke-Cheng Huang;Yi-Ming Lu;Cheng-Chih Hsu;Hung-Chih Hsieh

In this research, we propose an optical configuration to generate a heterodyne light source using a moving grating with constant speed. The results showed that the frequency of the heterodyne signal can be varied with the speed of grating and exhibited similar results of theoretical prediction.

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Manuscript ID.  0241
Paper No.  2021-FRI-P0401-P006
Chen-Yi Chang Small angle measurement using phase sensitive total-internal- reflection heterodyne interferometry
Jiun-You Lin;Chen-Yi Chang

The paper proposes a method for measuring small angle based on phase sensitive
total-internal-reflection heterodyne interferometry. When a half-wave plate, a quarter-wave
plate and an analyzer with proper azimuth angles are arranged in the tested arm of the
interferometer, the phase difference caused by total internal reflection of the interference
signal is greatly enhanced. The phase difference can be precisely measured with the
heterodyne interferometric technique, and the associated angle can be estimated. The
experimental results demonstrate the feasibility of this method.


Manuscript ID.  0255
Paper No.  2021-FRI-P0401-P007
Chung-Hsuan Huang Deep learning-based Active Wavefront Correction for Beam Rotation Holographic Tomography
Chung-Hsuan Huang;Li-Chien Lin;Chau-Jern Cheng

In this study present a novel approach using deep learning-based active wavefront aberration correction for beam rotation holographic tomography to acquire three-dimensional image of native biological cell sample. As a result, the proposed algorithm is capable of accurately correct the background aberration and much faster than its original plain algorithm.


Manuscript ID.  0304
Paper No.  2021-FRI-P0401-P008
Yu-Chih Lin Three-dimensional quantitative environment detection by incoherent holography based fringe projection profilometer
Yu-Chih Lin;Chen-Che We;Ssu-Chia He;Chung-Hsuan Huang;Chau-Jern Cheng

A novel 3D detection method was proposed by an incoherent holography based fringe projection profilometer. Compare with the conventional fringe projection profilometer, a high resolution quantitative profile can be realized by calculating without complicated adjustment before each detected procedure. The key point of the quantitative measurement is based on an absolute axis reconstruction by using incoherent holographic recording, which can obtain with the profilometer at the same time.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0480
Paper No.  2021-FRI-P0401-P009
Wen-Sheng Hsiao Study of Insect Attracting System by using Titanium Dioxide and Ultraviolet Light
Wen-Sheng Hsiao;Wei-Hsiung Tseng;Hsiao-Yi Lee

This research is a mosquito trap system, which is mainly divided into three parts. Firstly, 365nm UV light is used for visual induction. Secondly, the secondary element lampshade designed for this experiment is used to optimize the light distribution range, so as to be more suitable for attracting mosquitoes. Finally, the odor and CO2 concentration stimulated by UVA and photocatalyst are used to trap the sense of smell, and the trapping system is optimized by combining the above.


Manuscript ID.  0484
Paper No.  2021-FRI-P0401-P010
BO-YU CHIH Study of Rapid Calculation of Wide-Angle Diffraction Patterns Using Improved Fraunhofer Formula
Wei-Han Chen;BO-YU CHIH;Wei-Feng Hsu

We proposed a method to calculating far-field wide-angle intensity distribution of diffractive objects using a modification of the Fraunhofer formula. By comparing with the Huygens-Fresnel formula, the proposed method is able to approximate the far-field wide-angle pattern of sub-micro diffractive objects with about 50% less time and the same accuracy.


Manuscript ID.  0494
Paper No.  2021-FRI-P0401-P011
Chu-Yang Tsai Using Diffractive Optical Element for Generation of Three-Dimensional (3D) Layered Images Applied to Diffractive 3D Printing
Chu-Yang Tsai;Tzu-Hsuan Yang;Yun-Xin Zhang;Wei-Feng Hsu

A computer-generated hologram (CGH) comprising multiple CGHs of sliced images of a 3D object produced a volumetric image used to polymerize photosensitive resin. The method features high efficiency, high resolution, rapid fabrication, and good continuity.


Manuscript ID.  0590
Paper No.  2021-FRI-P0401-P012
Ming-Song Zhang Liquid crystal gratings with crystal/quasicrystal patterns
Hui-Chi Lin;Zhe-Wei Xu;Ming-Hsien Li;Ming-Song Zhang;Chi-Shiang Hsu;Hsing-Chih Liang

This study provided a convenient technique for fabricating LC gratings with crystal/quasicrystal/kaleidoscopic patterns. The 2D patterns were generated with a collimated light to illuminate a high-precision mask with multiple apertures regularly distributed on a ring. The 2D LC gratings were electrically tunable and exhibited polarization-independent first-order diffraction.

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Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0096
Paper No.  2021-FRI-P0401-P013
Jyun-Mao Zhan Study of Multi-Beam Splitter by Diffractive Optical Element and Beam Expander
Jyun-Mao Zhan

A multi-beam splitter composed of a diffractive optical element ( DOE ) and a beam expander is proposed in the study. Through the optical simulation by ZEMAX and real optical experiments, it can be demonstrated that a laser beam can be split as four beams and their spot size and directions can be controlled by beam expander, in order to meet the requirement of laser printing system for integrated circuits.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0645
Paper No.  2021-FRI-P0401-P014
Hsin-Jen HSU Curve Fitting Selection Rule for The Fringe Projection Scanning profilometry
Hsin-Jen HSU;Sheng-Kai Tsai;Yi-An Lin;Nai-Jen Cheng

This study set up the coaxial scanning fringe projection profilometry. And use the direct amplitude extraction method that is a faster way of image processing. Using curve fitting selection to increase the precision of profile reconstruction by choosing proportion correct images data.


Manuscript ID.  0314
Paper No.  2021-FRI-P0401-P015
Hsuan-Hung Lin Deep learning-based noise detection and reduction for 3D shape measurement of fringe projection profilometry
Chung-Hsin Huang1;Hsuan-Hung Lin;Hui-Ching Chang;Han-Yen Tu

The phase errors due to the inevitably noise of unstable ambient light, device flicker, or high surface reflectivity in captured fringes, which are non-ignorable in Fringe projection profilometry (FPP). In this paper, a deep learning-based noise detection and its reduction for 3D shape map is proposed. It enables to detect the noisy regions for inspection utilizing captured fringes by the camera. In order to reduce the measurement errors in noisy regions, the inpainting technique of interpolation is proposed. The experimental results demonstrate the method's efficient performance and efficiency without additional fringe reprojection and devices for 3D shape measurement.


Manuscript ID.  0253
Paper No.  2021-FRI-P0401-P016
Chung-Hsuan Huang Label-free Cell Imaging and Diagnosis using Multimodal Holographic Microscopy
Chung-Hsuan Huang;Chau-Jern Cheng

We present a multimodal holographic microscopy combined digital holographic microscope and Raman spectroscopy to achieve the label-free cell imaging and diagnosis. The preliminary experimental demonstration shows the simultaneous measurement of neuroblastoma cell imaging and spectrum analysis to reveal the potential label-free biological applications.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0196
Paper No.  2021-FRI-P0401-P017
Guo-Feng Luo YOLO-enabled face recognition and mask detection
Guo-Feng Luo

YOLO (You Only Look Once) neural network uses deep learning for real-time multi-object recognition and detection. This study evaluates YOLO using mask detection for mask wearing mandates. The results show that YOLO is able to recognize people with and without masks in real time, and the accuracy is very high.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0256
Paper No.  2021-FRI-P0401-P018
Chung-Yu Yeh Digital Holographic Microscopy for Long-term Living Cells Imaging and Observation
Chung-Yu Yeh;Ssu-Chia He;Chung-Hsuan Huang;Victoria Giang;Chau-Jern Cheng

This research proposes an off-axis digital holographic microscopy (DHM) system, which is used to record digital holograms of living cells and obtain cell growth status from the reconstruction phase. This system records and measures cell changes over a long duration.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0576
Paper No.  2021-FRI-P0401-P019
Shao-Kui Zhou The Binocular Head-mounted Display Based on Planar Acrylic Waveguide
Wei-Kai Lin;Fun-Ru Lin;Shao-Kui Zhou;Wei-Chia Su

This study proposed a binocular HMD which consists of a planar acrylic waveguide and four HOEs. The diffractive efficiency of the HOEs was expected via coupled wave theory. The FOV for the system achieve to 17.7° in the horizontal direction and 5.3° in the vertical direction.


Manuscript ID.  0126
Paper No.  2021-FRI-P0401-P020
Yi-Ming Lu A heterodyne light source generated by moving grating with various grating pitch
Yi-Ming Lu;Ke-Cheng Huang;Hung-Chih Hsieh;Cheng-Chih Hsu

In this study, we demonstrated the heterodyne frequency with an moving grating at constant
speed. The modulated frequency of heterodyne signal was varied with the grating pitch changed. We
successfully showed that two frequencies of heterodyne signal can be obtained by the grating pitch of
0.833 μm and 1.667 μm, respectively.

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Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0163
Paper No.  2021-FRI-P0401-P021
Chien-Chang Chung Study of License Plate recognition by using you only look once (YOLO) neural network
Chien-Chang Chung

In this paper, we developed an optical license plate automatic recognition system using the YOLO deep learning framework. During the training process, the license plate data set collected from the network database has a total of 1966 pictures, and then 393 pictures are randomly selected as the test set, the remaining images are used as the training set. then use LabelImg software to label and classify all images, and start training the YOLO neural network. finally, through experimental evaluation, it can be seen that the license plate recognition system proposed in this article, the highest mean Average Precision(mAP) is 90%.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0609
Paper No.  2021-FRI-P0401-P022
Hong-Yuan Sie High-Resolution Hologram Printer
Hong-Yuan Sie;Jung-Ping Liu

We applied a high-resolution digital micromirror device (DMD) together with an imaging system at 405 nm to build a high-resolution hologram printer. Because only a small size of hologram fringes can be displayed on the DMD, the hologram data is separated to many tiles, and every time only a tile is projected to the photoresist for exposure. By stitching all the tiles, a large hologram can be produced.