Ching-Huang Lin

National Yunlin University of Science and Technology

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Jin‐Yi Sheu

Taipei City University of Science and Technology

Chien-Yue Chen

National Yunlin University of Science and Technology

Rong-Seng Chang

National Central University

Rang-Seng Chang

National Central University

Fung-Chang Sung

China Medical University

Yueh Ouyang

Université Laval

Sung‐Chun Tang

National Taiwan University Hospital

Ming-Hui Sun

Chang Gung University

Siu-Pak Lee

Memorial Hospital of South Bend

Shih-Pin Hsu

I-Shou University

Cooperative Institutions

China Medical University

National Yang Ming Chiao Tung University

China Medical University Hospital

National Central University

Taipei Medical University

Chang Gung University

National Taiwan University Hospital

Shin Kong WHS Memorial Hospital

National Yang Ming University Hospital

Taipei Veterans General Hospital

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Channel Equalization for MIMO LTE System in Multi-path Fading Channels

Lecture notes in electrical engineering (2016)

Hsuan-Fu Wang Mu-Song Chen Ching-Huang Lin Chi-Pan Hwang

Doppler frequency

10.1007/978-981-10-0539-8_68

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Citations (3)

Reduction of speckles and distortion in projection system by using a rotating diffuser

Optical Review (2012)

Chien-Yue Chen Wei-Chia Su Ching-Huang Lin Ming-De Ke Qing-Long Deng

Distortion (music)

Diffuser (optics)

Backlight

Speckle noise

10.1007/s10043-012-0075-x

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Citations (25)

<title>Analysis of third order spherical aberration with the continuous wavelet transform</title>

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2000)

Jin‐Yi Sheu Ching-Huang Lin Rang-Seng Chang

There are several numerical techniques to solve the value of aberration coefficients. One classical technique is the Gaussian elimination method, which has been described in most standard numerical analysis textbooks, such as Ralston's text, the conventional direct inversion method is numerically unstable. To obtain the Zernike coefficients form a samples wavefront with inherent measurement noise, the classical least-squares matrix inversion method and the Gram-Schmidt orthogonalization method would become ill- conditioned due to an improper data sampling. In this paper, we present the continuous wavelet transform (CWT) technique to find the defocus aberration and 3rd order spherical aberration coefficients. The technique we proposed is superior to the conventional methods in two ways. (1) Our method is much faster than the conventional methods, especially in applications with a few sampling points. (2) Our method is also more accurate in fitting aberration coefficients than the conventional methods, particularly in applications involving noise. Furthermore, the aberration coefficients determined through the CWT are independent of the order of the polynomial expansion. So we can find a true value from the datum of fitting.

Orthogonalization

Continuous wavelet transform

10.1117/12.381709

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Citations (1)

Neuroprotection effects of retained acupuncture in neurotoxin-induced Parkinson’s disease mice

Brain Behavior and Immunity (2011)

Jen-Lin Yang Jay S.C. Chen Yi-Fei Yang Jyh-Cheng Chen Ching-Huang Lin

MPTP

Neurotoxin

10.1016/j.bbi.2011.05.012

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Citations (29)

<title>Analysis of primary aberration with the two-dimension discrete wavelet transform</title>

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2000)

Jin‐Yi Sheu Rang-Seng Chang Ching-Huang Lin

As is known, Zernike polynomials find broad application for the solution of many problems of computational optics. The well-known Zernike polynomials are particularly attractive for their unique properties over a circular aperture. Zernike circle polynomials are used for describing both classical aberrations in optical system and aberrations related to atmospheric turbulence. There are several numerical techniques to solve for the value of Zernike coefficients, the least-squares matrix inversion method and the Gram-Schmidt orthogonalization method would become ill- conditioned due to an improper data sampling. In this article, we present the 2D discrete wavelet transform (DWT) technique to find the 3rd order spherical and coma aberration coefficients. The method offers great improvement in the accuracy and calculating speed of the fitting aberration coefficients better than the least-squares matrix inversion method and the Gram-Schmidt orthogonalization method. Furthermore, the result of solving coefficients through the 2D DWT is independent of the order of the polynomial expansion. So we can find an accurate value from the datum of fitting.

Orthogonalization

Coma (optics)

Condition number

10.1117/12.381698

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Citations (2)

Polarization simultaneous readout for volume holographic storage in LiNbO 3

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2008)

Wei‐Chia Su Chien-Yue Chen Y. J. Liu Ching-Huang Lin Yueh Ouyang

We have successfully demonstrated a holographic memory in a single LiNbO₃ crystal with two simultaneous but individual readout channels. A special scheduled exposure model is derived to obtain equal diffraction efficiency of each hologram in this memory. The simultaneous readout technique is achieved in a hybrid-multiplexed memory using angular multiplexing and the polarization multiplexing. Polarization multiplexing offers the mechanism of simultaneous readout for two individual orthogonally polarized images. In each angular position of the holographic memory, these two orthogonally polarized images can be reconstructed simultaneously and each of them can be viewed independently. After our proposed scheduled exposure, experimental result of diffraction efficiency in each hologram becomes equal and the result is consistent with our prediction.

Diffraction efficiency

Optical storage

10.1117/12.780773

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Citations (0)

Design of miniature HD–DVD optical pick-up head using a Penta prism

Journal of Modern Optics (2005)

Wen-Shing Sun Tsung-Xian Lee Ching-Cherng Sun Ching-Huang Lin Chien-Yue Chen

Abstract A novel design of HD–DVD optical pick-up head is proposed. The geometrical size of the pick-up head is reduced by using a combined system of a Penta prism and an aspherical lens. Such a combined system can replace the mirror and collimating lens in a conventional pick-up head, to achieve a miniature HD–DVD pick-up head.

Prism

10.1080/0950034042000275397

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Citations (7)

Laser acupuncture-induced analgesic effect and molecular alterations in an incision pain model: a comparison with electroacupuncture-induced effects

Lasers in Medical Science (2017)

Yen-Jing Zeng Yu-Hsiang Lin You-Cheng Wang Ju-Hsin Chang Jih‐Huah Wu

Low-level laser acupuncture (LLLA) produces photobiomodulation through acupuncture point and is an alternative to low-level laser therapy. Although the analgesic effect of LLLA on chronic pain has been proven, its effect on acute postincisional pain has yet to be investigated. A plantar incision (PI) model was used to mimic human postsurgical pain. Male adult rats received GaAlAs laser irradiation at the right ST36 acupoint immediately after operation and on the following 4 days. Three laser treatment groups (two red laser groups with a 30- or 15-min treatment duration and one 30-min near-infrared laser group) were compared with sham LLLA and naive groups and an electroacupuncture (EA) group (separate study). Behavioral withdrawal thresholds of both hind paws were measured before and after incision. Expression of mitogen-activated protein kinases (p-ERK and p-p38), inducible nitric oxide synthase (iNOS), and tumor necrosis factor (TNF) in the spinal cord was analyzed. All three LLLA treatments attenuated post-PI tactile allodynia in the ipsilateral paw, but only the 30-min red laser treatment affected the contralateral paw and had similar efficacy to that of EA. All laser treatments barely reduced heat hyperalgesia in both hind paws. At 3 days after PI, the 30-min red laser group showed reversed increases of PI-induced p-ERK, p-p38, and iNOS but not TNF expression in the spinal cord. Repetitive LLLA treatments ameliorated PI-induced mechanical pain. The inhibition of multiple sensitization signals highlights the unique clinical role of LLLA. Thus, LLLA is an alternative to EA as an adjuvant for postoperative pain control.

Allodynia

10.1007/s10103-017-2367-7

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Citations (28)

Analysis of Seidel aberration by use of the discrete wavelet transform

Applied Optics (2002)

Rong-Seng Chang Jin‐Yi Sheu Ching-Huang Lin

Seidel aberration coefficients can be expressed by Zernike coefficients. The least-squares matrix-inversion method of determining Zernike coefficients from a sampled wave front with measurement noise has been found to be numerically unstable. We present a method of estimating the Seidel aberration coefficients by using a two-dimensional discrete wavelet transform. This method is applied to analyze the wave front of an optical system, and we obtain not only more-accurate Seidel aberration coefficients, but we also speed the computation. Three simulated wave fronts are fitted, and simulation results are shown for spherical aberration, coma, astigmatism, and defocus.

Coma (optics)

Optical aberration

Contrast transfer function

Astigmatism

10.1364/ao.41.002408

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Citations (9)

Low estimated glomerular filtration rate is associated with poor outcomes in patients who suffered a large artery atherosclerosis stroke

Atherosclerosis (2015)

Shin‐Joe Yeh Jiann‐Shing Jeng Sung‐Chun Tang Chung-Hsiang Liu Shih-Pin Hsu

Stroke

10.1016/j.atherosclerosis.2015.01.038

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Citations (21)