Session Index

Holography and Information Processing

Holography and Information Processing I
Thursday, Dec. 3, 2020  13:15-14:45
Presider: Prof. Hsi-Fu Shih
Prof. Yeh-Wei Yu
Room: 6AB Room 327
13:15 - 13:45 Manuscript ID.  0820
Paper No.  2020-THU-S0401-I001
Invited Speaker:
Takanori Nomura

Single-Shot Phase Imaging Techniques Based on Parallel Optical Information Processing
Takanori Nomura;Naru Yoneda;Yusuke Saita

Single-shot phase imaging techniques based on parallel optical information processing are described. One is single-shot digital holography with Fresnel domain filtering using
phase modulation. Other is single-shot higher order transport of intensity phase imaging using
a computer generated hologram.

13:45 - 14:00 Manuscript ID.  0325
Paper No.  2020-THU-S0401-O001
Yi-Chun Fang
Award Candidate
Face Recognition with a Lensfree Encrypted System
Yi-Chun Fang;Ya-Ti Chang Lee;Chung-Hao Tien

We proposed an imaging system with optical encryption. With the coded mask, the facial pattern wouldn’t reveal amid the whole process and thus keep the privacy. The intermediate images can be classified by VGG-11. Currently, with 170 training images, the system can fully recognize 43 testing images in 10 classes.

14:00 - 14:15 Manuscript ID.  0397
Paper No.  2020-THU-S0401-O002
Kun-Chi Tsai
Award Candidate
On the Study of the THz Computational Imaging
Kun-Chi Tsai;Kun‑Huang Chen;Jung-Ping Liu

Based on the scheme of optical scanning holography, we applied a tera-hertz (THz) beam modulated by a diffuser to raster scan the object target. A complex intermediate pattern is synthesized using multiple raw patterns and then be demodulated by the pre-recorded system point spread function.

14:15 - 14:30 Manuscript ID.  0612
Paper No.  2020-THU-S0401-O003
Hung-Chuan Hsu
Award Candidate
Volume holographic gratings for Airy light-sheet microscope
Hung-Chuan Hsu;Sunil Vyas;Kuang-Yuh Huang;Hsien-Shun Liao;Yuan Luo

Compare to the Gaussian beam, the Airy beam provides larger FOV, higher axial resolution, and deeper penetration depth in a light-sheet microscope. Here, volume holographic grating (VHG) is fabricated for generating Airy light sheet. The present method may find important applications in designing compact illumination components for a light-sheet microscope.

14:30 - 14:45 Manuscript ID.  0603
Paper No.  2020-THU-S0401-O004
Rong-Hao Wu-Yang
Award Candidate
An Edge-Lit Volume Holographic Optical Element for An Objective Turret in A Lensless Digital Holographic Microscope
Rong-Hao Wu-Yang;Yeh-Wei Yu;Ching-Cherng Sun;Po-Kai Hsieh;Yi-Hao Huang;Chih-Yuan Song;Tsung-Hsun Yang

This paper proposes and demonstrates the use of the edge-lit volume holographic optical element (EL-VHOE) as a reference waveguide to reduce the volume of a lensless digital holographic microscope. Additionally, a hybrid lensless Fourier transform digital holography is applied to make the EL-VHOE working as an objective turret.


Holography and Information Processing

Holography and Information Processing II
Thursday, Dec. 3, 2020  16:20-17:50
Presider: Prof. Jung-Ping Liu
Prof. Chung-Hao Tien
Room: 6AB Room 327
16:20 - 16:50 Manuscript ID.  0802
Paper No.  2020-THU-S0402-I001
Invited Speaker:
Yeh-Wei Yu

The trade-off between storage capacity and data transfer rate of a holographic data storage system improved by PI-DFGSI
Yeh-Wei Yu;Ching-Cherng Sun

We discuss the trade-off caused by the system parameters, and the performance degradation caused by the angular momentum of the rotational motor for shifting multiplexing. We also propose applying phase-integrated double-frequency grating shearing interferometer (PI-DFGSI) to makes the reading with moving disc being possible, and thus improves the system performance.

16:50 - 17:05 Manuscript ID.  0499
Paper No.  2020-THU-S0402-O001
Hung-Lung Tseng
Award Candidate
Design and Fabrication of Holographic Radial and Azimuthal Polarization Converters
Hung-Lung Tseng;Fan-Hsi Hsu;Chien-Yuan Han;Kun-Huang Chen;Chien-Hung Yeh;Ken-Yuh Hsu;Jing-Heng Chen

Radial and azimuthal polarization converters are capable to convert a light into radially and azimuthally polarized lights which have several applications. A new design of holographic converters is proposed and fabricated. This design has the advantages of high diffraction efficiency, suitable for low-cost mass production and has high application potential.

17:05 - 17:20 Manuscript ID.  0535
Paper No.  2020-THU-S0402-O002
Jian-Lun Chen
Award Candidate
Stereoscopic Depth Measuring System Based on the Centroid Distance Analysis of Structured Light
Jian-Lun Chen;Hsi-Fu Shih

This paper proposes an innovative method for stereoscopic depth measurement by designing a computer generated hologram (CGH), which can diffract structured light patterns, and calculating the centroid distances of projected speckles on measured surface. The device was fabricated and system was performed to verify the feasibility of the method.

17:20 - 17:35 Manuscript ID.  0574
Paper No.  2020-THU-S0402-O003
Kun-Hao Huang
Award Candidate
Reduction of phase error upon rotation of phase-only volume-holographic memory disc with pre-processing by phase integral

We present a study of theoretical finding of additional phase error of a volume
holographic storage disc during the reading process when the disc is rotated or displaced. It will
decrease the bit error rate of a phase-only signal. Then we propose a novel approach to solve
the problem.

17:35 - 17:50 Manuscript ID.  0763
Paper No.  2020-THU-S0402-O004
Huai-Syuan Huang
Award Candidate
A One-shot Method Using Fourier Transform Profilometry for Rotating Objects
Huai-Syuan Huang;Wei-Hung Su

A one-shot method to describe the profile of a rotating object is presented. A sinusoidal fringe pattern is illuminated on the rotating object. Fringes on the rotating object observed by the digital camera are blurred by the motion. The blurred fringes provide analyzable information to describe the surface profile.


Holography and Information Processing

Holography and Information Processing III
Friday, Dec. 4, 2020  13:10-15:40
Presider: Prof. Yuan Luo
Prof. Jing-Heng Chen
Room: 6AB Room 327
13:10 - 13:40 Manuscript ID.  0817
Paper No.  2020-FRI-S0403-I001
Invited Speaker:
Sarun Sumriddetchkajorn

Conceptual Architecture of 3D Photonic Convolution Neural Network using Off-the-Shelf Devices
Sarun Sumriddetchkajorn

This paper proposes a conceptual design for hybrid optical-electronic convolution neural network. The key design exploits the inherent advantage of 3D photonics architecture that provides inversion, multiplication, and summation of the images. This concept can be made possible by using today smart phones or tablets and high-definition liquid crystal displays.

13:40 - 14:10 Manuscript ID.  0801
Paper No.  2020-FRI-S0403-I002
Invited Speaker:
Chung-Hao Tien

Deep learning for computational optics
Chung-Hao Tien

Computation resources and machine learning have made a rapid progress in the last decade. Inspired by the computer science community focusing on data interpretation, computational optics took further step to investigate more possibility about the image formation. In this study, I will present some data-driven works including image denoising, phase retrieval and unconventional imaging system based on deep learning neural network.

14:10 - 14:40 Manuscript ID.  0464
Paper No.  2020-FRI-S0403-I003
Invited Speaker:
Jing-Heng Chen

Design and Fabrication of Polarization-selective Substrate-mode Volume Holograms
Jing-Heng Chen;Fan-Hsi Hsu;Chien-Yuan Han;Kun-Huang Chen;Chien-Hung Yeh;Ken-Yuh Hsu

A prism-hologram-prism sandwiched recording method is proposed for the fabrication of polarization-selective substrate-mode volume holograms with a large diffraction angle. The method belongs to a technique of longer-wavelength construction for shorterwavelength reconstruction and is much easier than that of traditional method which has high application potential in holographic photonics.

14:40 - 14:55 Manuscript ID.  0549
Paper No.  2020-FRI-S0403-O001
Vinoth Balasubramani
Deep Learning-enabled Particle Detection and Sorting in Three-Dimensions with Digital Holography
Vinoth Balasubramani;Yang-Jie Gao;Chung-Hsuan Huang;Li-Chien Lin;Chau-Jern Cheng

A novel deep learning model for particle detection and sorting in three-dimensions with digital holography was proposed and demonstrated. Deep learning models such as U-net and convolution neural network are implemented to predict and estimate the particle’s size and its orientations in lateral and axial directions.

14:55 - 15:10 Manuscript ID.  0009
Paper No.  2020-FRI-S0403-O002
Three Dimensional Profile Algorithm based on the Number of Interference Slope Fluctuations without Phase Unwrapping

In this study, the presented novel algorithm, based on the interferometry techniques, is used to rebuild the profile of the step height sample and the dirty position. By contrast, the phase unwrapping algorithm and the zero-order interference fringe fail to simultaneously rebuild the profile of sample and the dirty position.

15:10 - 15:25 Manuscript ID.  0131
Paper No.  2020-FRI-S0403-O003
Yen-Chung Wang
Image stitching by using algorithm of frequency domain signal similarity

This study presents the algorithm to distinguish the strong and signals, and the noise in the input of three images. All of the detected strong signal (or weak signal) can combine to the one stitching image. By contrast, the known Speeded Up Robust Features does not effectively distinguish these signals.


Holography and Information Processing

Poster Session I
Friday, Dec. 4, 2020  15:40-17:30
Presider: Prof. Wei-Chia Su
Prof. Ju-Yi Lee
Prof. Wei-Hung Su
Prof. Hui-Chi Chen
Prof. Vera Marinova Gospodinova
Room: 6AB Courtyard
Manuscript ID.  0062
Paper No.  2020-FRI-P0401-P001
Tzu-An Chou
Award Candidate
A multi-focus spot light realized for laser beam machining
Tzu-An Chou;Chih-Hao Chuang;Isaac Manyonge Matere;Cathy Weng;Hoang-Yan Lin;Chien-Yu Chen

Recently there have been development in digital optics especially in laser beam machining, however designing miniaturized is still a challenge. We offer a solution by use of modified Gerchberg-Saxton algorithm to create computer generated holography that can focus a multi-focus spot light on four different focal planes.

Manuscript ID.  0096
Paper No.  2020-FRI-P0401-P002
Chia-Yu Chiang
Award Candidate
Measurement of the refractive index of prism with the maximum phase difference of total-internal reflection and polarization camera
Chia-Yu Chiang;Ju-Yi Lee

The measurement introduces the maximum phase difference based on total-internal reflection, and the polarization interferometry with polarization camera. By finding the value of maximum phase difference and the relationship between maximum phase difference and refractive index, the refractive index can be obtained. The system’s resolution is 7 × 10-4 RIU.

Manuscript ID.  0104
Paper No.  2020-FRI-P0401-P003
You-Jun Lin
Award Candidate
Digital image correlation method applied to residual stress measurement
You-Jun Lin;Ju-Yi Lee;Mao-Cheng Jiang

This research uses the digital image relationship method to develop a large-area
non-contact residual stress measurement device. The digital image correlation method can
measure the residual stress in a two-dimensional plane. This research uses this technology to
measure the residual stress of the laminated test piece.

Manuscript ID.  0273
Paper No.  2020-FRI-P0401-P004
Chia-Rong Sheu
Award Candidate
Study of polarization-dependent/independent holographic optical elements as lens arrays via photo-curable monomers doped liquid crystal cells
Tsu-Shuo Han;Chia-Rong Sheu;Hung-Wei Yeh

Holographic optical elements (HOEs) have been applied in augmented reality in many researches. In this study, polarization-dependent/independent HOEs as lens arrays were demonstrated which were fabricated in photo-curable monomer doped liquid crystal cells with holographic exposure processes. These HOEs were demonstrated their imaging capabilities in the integral imaging system.

Manuscript ID.  0303
Paper No.  2020-FRI-P0401-P005
Chia-Ming Mai
Award Candidate
A Terahertz Compressed Sensing Imaging System Evaluated with Bernoulli Spatial Light Modulation Masks
Chia-Ming Mai;Yi-Chun Hung;Yo-Lin Lin;Yu-Chun Wang;Wei-Chieh Wang;Yuan-Hao Huang;Shang-Hua Yang

In this work, we demonstrated a single pixel terahertz compressed sensing imaging system with mm-level resolution. During the experiment, terahertz beam is modulated by Bernoulli spatial light modulators. Reconstruction is then done through pseudo inverse algorithms. From the reconstructed images we showed that images are successfully reconstructed through Bernoulli masks.

Manuscript ID.  0393
Paper No.  2020-FRI-P0401-P006
Chih-Hsiung Lin
Award Candidate
Development of an optical 3D sensing technology
Chih-Hsiung Lin;Jung-Ping Liu;Jing-Heng Chen;Kun-Huang Chen

In this paper, an optical 3D sensing technology was proposed. This technology manufacture a sensing device that can obtain shallow depth of field images and can perform certain accurately object depth sensing. This technology has the merits of a larger sensing range, lower manufacturing cost, and can be used outdoors.

Manuscript ID.  0408
Paper No.  2020-FRI-P0401-P007
Chin-I Tang
Award Candidate
Chromatic Shift Measurement Using Contrast Sharpness Calculation based on Hyperspectral Imaging
Chin-I Tang;Guo-Hao Lu;Jing-Feng Weng;Chao-Feng Liu;Chun-Jen Weng

This research involved the integration of spectral imaging camera and microscopy in conjunction with a white-light source to create a microscopic hyperspectral imaging system. This study focused on the development of hyperspectral imaging system with the aim of measuring chromatic aberration of the objective lenses.

Manuscript ID.  0488
Paper No.  2020-FRI-P0401-P008
Wei-Lun Lo
Award Candidate
Absolute Optical Rotary Encoder with Multiple Focusing Spots Realized by Dammann Grating
Wei-Lun Lo;Hsi-Fu Shih

This paper proposes an absolute optical rotary encoder (ORE) design with the optical resolution of 15 bits. It adopts a red laser as the light source cooperating with a Dammann grating and a high numerical aperture (NA) objective lens to generate multiple focusing spots on the encoded tracks.

Manuscript ID.  0502
Paper No.  2020-FRI-P0401-P009
Chung-Hsuan Huang
Award Candidate
Development of Digital Holographic Tomography for Measuring Three-dimensional Biological Cells
Chung-Hsuan Huang;Yang-Jie Gao;Han-Yen Tu;Chau-Jern Cheng;Nikolay V. Petrov

We propose a digital holographic tomography developmental system with aberration wavefront compensation technique to measure the biological cell. The proposed prototype includes the hardware and measure processing. The preliminary experimental results show the three-dimensional refractive index tomographic imaging.

Manuscript ID.  0511
Paper No.  2020-FRI-P0401-P010
Ssu-Chia He
Award Candidate
Integration of digital holography and fringe projection for three-dimensional complex surface measurements
Ssu-Chia He;Han-Yen Tu;Chung-Hsuan Huang;Chau-Jern Cheng

In this paper, we present a new approach to integrate digital holography and fringe analysis in three-dimensional (3D) composite surface measurement. Data analysis and image processing is performed for 3D image fusion to form a 3D composite surface profile.

Manuscript ID.  0524
Paper No.  2020-FRI-P0401-P011
Chen-Ming Tsai
Award Candidate
Common-Path Optical Scanning Holography
Chen-Ming Tsai;Jung-Ping Liu

Optical scanning holography (OSH) relies on the scanning by using an interference fringe and thus is sensitive to the environmental fluctuation. Here we demonstrated the common-path OSH to suppress the influence of environmental fluctuation and minimize the system form factor.

Manuscript ID.  0527
Paper No.  2020-FRI-P0401-P012
Chia-Jung Cheng
Award Candidate
3D Display by Binary Holograms and Intensity Accumulation
Chia-Jung Cheng;Ming-Hsuan Wu;P. W. M. Tsang;Jung-Ping Liu

We proposed to generate multiple computer-generated binary holograms (CGBH) of the same scene by localized random down-sampling, adaptive sampling, and direct sign-thresholding. The holograms are displayed by intensity accumulation with a digital micro mirror device. With our optimized set of CGBHs, a high-quality reconstructed image without artifacts is obtainedㄡ

Manuscript ID.  0618
Paper No.  2020-FRI-P0401-P013
Chung-Yu Yeh
Award Candidate
Digital holographic microscopy for living cells imaging and sorting
Chung-Yu Yeh;Chau-Jern Cheng

This study proposes an off-axis digital holographic microscopy (DHM) system for recording a digital hologram of living cells to obtain its cells features from the reconstructed phase. The cell features are further analyzed to identify the cell nature such as live or dead.

Manuscript ID.  0640
Paper No.  2020-FRI-P0401-P014
Surag Athippillil Suresh
Award Candidate
Volume Holographic Beam Shaper for Super Gaussian Beams
Surag Athippillil Suresh;Sunil Vyas;J. Andrew Yeh;Yuan Luo

A volume holographic optical element is designed and fabricated using photopolymer (PQ-PMMA) for super Gaussian beam. A Lee hologram and Digital Micro Mirror Device (DMD) are used for this purpose. Super Gaussian beam generated by volume holographic grating with unique diffractive properties are advantageous for variety of practical applications.

Manuscript ID.  0681
Paper No.  2020-FRI-P0401-P015
Pin-Duan Huang
Award Candidate
Feature Coating Technology for 3D Identification
Pin-Duan Huang;Tzu-Kai Wang;Tsung-Hsun Yang;Ching-Cherng Sun

3D information has become popular in recent years. In order to connect real world and virtual world, using RGB-D scanner is one of the methods. But it cannot work when encountering a plane, featureless, target plane. Our team proposed a feature coating technology to add feature and fix the problem.

Manuscript ID.  0746
Paper No.  2020-FRI-P0401-P016
Pen-Ying Liao
Award Candidate
Space Division Multiplexing of Communication Channels in a Multimode-Fiber using Holographic Correlator Method
Pen-Ying Liao;Shiuan Huei Lin;Vera Marinova;Ken Yu Hsu

A method of sending multichannel optical information through a multimode fiber (MMF) is presented by applying holographic Correlator method. Several optical characteristic has been discovered, and experiment results are presented and discussed.

Manuscript ID.  0750
Paper No.  2020-FRI-P0401-P017
Zih Fan Chen
Award Candidate
Capturing object behind a thin turbid medium by using in-line digital holographic technique
Zih Fan Chen;Shiuan Huei Lin;Vera Marinova;Ken Y. Hsu

n this paper, we present our investigations on capture the image of an object lying behind a thin turbid medium using in-line digital holographic technique. The results also show the feasibility of dynamical imaging through the thin turbid by in-line digital holography.

Manuscript ID.  0765
Paper No.  2020-FRI-P0401-P018
Fang-Yong Lee
Award Candidate
Characteristics of the PMMA/EGPEA Holographic Storage
Fang-Yong Lee;Xinf-Jing Wang;Tzu-Chien Hsu;Wei-Hung Su

A holographic material using PMMA [poly(methyl methacrylate)] and EGPEA (ethylene glycol phenyl ether acrylate) incorporated with the photo-initiator Irgacure 784 is studied.

Manuscript ID.  0777
Paper No.  2020-FRI-P0401-P019
Cheng-Ju Yang
Award Candidate
Implementation of Diffractive Optical Elements for Generation of Wide Angle Patterns in Structured Light 3D Scanning Application
Cheng-Ju Yang;Shun-Ping Zhuang;Wei-Feng Hsu

This paper presents the results of making diffractive optical elements (DOEs) to producing wide-angle diffraction patterns which can be used in structured light illumination for 3D scanning, including the preparation of target pattern, the design of binary-phase DOE, the manufacture of DOE wafers, and the evaluation of resultant DOEs.

Manuscript ID.  0781
Paper No.  2020-FRI-P0401-P020
Hsin-Ju Yao
Award Candidate
Improvement of Image Quality of Diffraction Pattern of Diffractive Optical Elements Using A Cyclic Algorithm
Hsin-Ju Yao;Yun-Xin Zhang;Wei-Feng Hsu

We presented a method to achieving high-quality diffraction images of the diffractive optical elements (DOEs). The DOEs obtained using the proposed were far superior to those obtained using the iterative Fourier transform algorithm in terms of PSNR (1301.2%) and uniformity (96.1%).


Holography and Information Processing

Holography and Information Processing IV
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Shiuan-Huei Lin
Prof. Nai-Jen Cheng
Room: 6AB Room 327
10:30 - 11:00 Manuscript ID.  0834
Paper No.  2020-SAT-S0404-I001
Invited Speaker:
Dimitre Z. Dimitrov

Metasurface Holography with Phase-Change Materials
Dimitre Z. Dimitrov

Metasurfaces are planar devices containing nanoantennas or resonator arrays that allow for beam shaping, super resolution imaging, and holography. Metasurface holography technology combines a computer-generated hologram with a nanoscale device. Hybrid metasurfaces with tunable phase change materials provide a platform for active modulation of wavefronts. and opportunities for switchable functionalities.

11:00 - 11:30 Manuscript ID.  0808
Paper No.  2020-SAT-S0404-I002
Invited Speaker:
Nai-Jen Cheng

Scanning fringe projection in shallow depth of fields for 3D measurement
Nai-Jen Cheng;Yi-An Lin;Chia-Yu Hsu;Wei-Hung Su

Fringe projection profilometry is a powerful and useful tool in three-dimensional measurements for many applications. We present a scanning approach using fringe projection in different shallow depth of fields along z-axis to retrieve and rebuild the surface of a small inspected object. The designed fringe pattern is projected on the inspected object with a shallow depth of field. Then, a CCD is used to capture the image of the inspected object with projected fringe in a narrow depth of field. A 2D contour of the inspected surface addressed by the in-focused fringes is obtained in one scanning process. The retrieved images from the scanning process are assembled to build the 3D surface of the inspected object. Based on the limited depth-of-field of the pattern projection system and the limited depth-of-focus of the image acquisition system, the precision of the profilometry system is improved.

11:30 - 11:45 Manuscript ID.  0251
Paper No.  2020-SAT-S0404-O001
Chen-Yu Ye
Fabrication of Radial grating for rotation angle measurement
Chen-Yu Ye;Yi-Ming Lu;Jia-Hui Zhao;Ke-Cheng Huang;Cheng-Chih Hsu

In this study, we proposed optical configurations to fabricate radial grating and use fabricated grating to measure a rotation angle of a rotational stage. The grating period of radial grating gradually changes with the radius, so it has the advantage of multiple angular resolutions.

11:45 - 12:00 Manuscript ID.  0517
Paper No.  2020-SAT-S0404-O002
Yi-Syuan Wu
Mechanical Simulation by Ray Tracing Model for Spherical Samples in Optical Tweezers
Yi-Syuan Wu;Hui-Chi Chen

Different from other simulations, we developed a matrix-based simulation model for the optical force on the arbitrary sample under an arbitrary light field. To testify the accuracy of this model, this paper shows the simulation and experimental result for the uniform spherical sample under the Gaussian beam.


Holography and Information Processing

Poster Session II
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Wei-Feng Hsu
Prof. Vera Marinova Gospodinova
Room: 6AB Courtyard
Manuscript ID.  0097
Paper No.  2020-SAT-P0402-P001
Meng-He Chiu
Exponential Correction Method on Shape from Focus for Improved Non-Uniform Illumination
Meng-He Chiu;Ju-Yi Lee

The purpose of this paper is to improve the non-uniform illuminated region by using exponential correction method. The experimental results show that non-uniform illumination often results in undesirable depth map. First we pre-process the image with exponential correction, then the depth map can be recovered by shape from focus (SFF).

Manuscript ID.  0141
Paper No.  2020-SAT-P0402-P002
Shang--chi Huang
High accuracy 3D printing by phase-only LCoS
Shang--chi Huang

A 3D lens structure can be prepared by stereolithography set-up which including a high resolution phase-only LCoS, z-axis direction translation stage. Using 1 mm radius of curvature as target, resulting 0.91 mm height 2.03 mm of base diameter printed objects were achieved. The error is estimated at 2.7%

Manuscript ID.  0167
Paper No.  2020-SAT-P0402-P003
Yu-Ping Chen
A novel hydrogen peroxide sensor
Yu-Ping Chen;Zhan-Quan Xu;Yong-Chang Xu;Yu-Hsuan Lin;Cheng-Chih Hsu

This study provided a novel H2O2 sensor which integrated an enzymatic sensing film on the backside of a holographic plate. Results showed the proposed method provided high stability and resolution within the measurement range of 1 ppm to 10 ppm.

Manuscript ID.  0229
Paper No.  2020-SAT-P0402-P004
Fu-chun Chang
Optical Inspection of Blood Cells by neural network YOLO algorithm
Fu-chun Chang;Hsiao-Yi Lee;Hsin-Yi Ma

We use low-cost aspheric lenses, Raspberry Pi CMOS modules and white LED lights to build an optical system with a neural network YOLO algorithm to automatically calculate whether the number of red blood cells in the blood is normal.

Manuscript ID.  0267
Paper No.  2020-SAT-P0402-P005
Wei-Lun Gao
Intensity Distribution Measurement of Free Form Surfaced LED Lamps by Projected Light Image Analysis Method
Wei-Lun Gao;Hsiao-Yi Lee;Hsin-Yi Ma

Through the projection light image analysis method, the light intensity distribution of a free form surfaced LED can be accomplished much faster than other approaches. Comparing the optical experimental results of the LED lamps by Gonio-photometer and the proposed projected light image analysis method,

Manuscript ID.  0301
Paper No.  2020-SAT-P0402-P006
Men Ting-Chun
Hyperspectral imaging applied by air pollution detection technology
Men Ting-Chun;Wang Hsiang-Chen

Abstract: Combines hyperspectral imaging and deep learning to propose air pollution detection method.Use the visible light hyperspectral imaging technology is given Hyperspectral information.Through the classification algorithm,3D-CAE and PCA are respectively proposed and combined with VGG-16 to discuss the optical haracteristics of air pollution and the accuracy of model recognition.

Manuscript ID.  0383
Paper No.  2020-SAT-P0402-P007
Yu-Chih Lin
Particle detection in different slice imaging using phase encoded common-path digital holographic microscopy
Yu-Chih Lin

This study presents a particle detection method by using novel phase encoded method in common-path DHM. The particles at different slice of the sample can be measured by using virtual spatial filter recording technique which can avoid the diffraction information from the other slice of the sample.

Manuscript ID.  0439
Paper No.  2020-SAT-P0402-P008
Yung-cheng Cheng
Study of PQ:PMMA film for grating recording using oxolane solvent
Te-Yuan Chung;Yung-cheng Cheng

PQ:PMMA can be dissolved in oxolane solvent and dispersed on glass substrate to form a film. Applying doctor-blade method with thickened solution, a rather uniform PQ:PMMA film can be formed. Series test on recording hologram grating on such film were performed and a corresponding model is established.

Manuscript ID.  0764
Paper No.  2020-SAT-P0402-P009
Wen-Kai Lin
Simplified Aberration Analysis of Diffractive Waveguide Combiner
Wen-Kai Lin;Shao-Kui Zhou;Bor-Shyh Lin;Wei-Chia Su

The simplified equations of astigmatism and anamorphic for waveguide combiners were proposed in this paper. The results of the equations matched to the simulation of the commercial ray-tracing software Zemax. It will make the designing process become simpler and faster.

Manuscript ID.  0769
Paper No.  2020-SAT-P0402-P011
Hao-Wei Sung
Error-controlled Pulse-encoded Patterns for Phase-shifting Projected Fringe Profilometry
Hao-Wei Sung;Chien-Ann Chen;Wei-Hung Su

An error-controlled method using pulsed-encoded patterns to identify fringe orders for phase-shifting projected fringe profilometry is presented. Phase-extraction and unwrapping can be performed directly by the pulsed-encoded patterns. There is no need to take additional projections for phase unwrapping.

Manuscript ID.  0772
Paper No.  2020-SAT-P0402-P012
Huai-Syuan Huang
A One-shot Method Using the 2D fringe-encoded pattern for Fourier Transform Profilometry
Huai-Syuan Huang;Zhi-Hsiang Liu;Wei-Hung Su

A one-shot method using the two-dimensional fringe-encoded pattern for Fourier transform profilometry is presented. The 2D fringe-encoded pattern provides additional information to identify the fringe order. Even though the surface color or reflectivity varies with positions, fringe orders can be identified precisely.

Manuscript ID.  0782
Paper No.  2020-SAT-P0402-P013
Wei-Han Chen
Optimization Algorithm of Phase Quantization for Phase-Only Diffractive Optical Elements
Wei-Han Chen;Tzu-Hsuan Yang;Wei-Feng Hsu

We present a method for phase quantization of diffractive optical element (DOE) which combines the iterative Fourier transform algorithm, a backward quantization method, and the large-error reduction algorithm. The method has been effectively and in high efficiency applied to binary-phase DOEs.

Manuscript ID.  0795
Paper No.  2020-SAT-P0402-P014
N.V. Petrov
Estimation of the concentration of nonlinear refractive index inhomogenities by analysis of diffraction patterns obtained using TRIDH approach
A.V. Belashov;N.V. Petrov;Chau-Jern Cheng

The work is devoted to development of a new method for rapid estimation of the concentration of optical defects in the form of nonlinear refractive index inhomogeneities. The proposed method is based on analysis of the angular spectrum of diffraction patterns obtained using previously demonstrated TRIDH method.