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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共58条记录   Touchless sensor capturing five fingerprint images by one rotating camera [作者：Noh, D; Choi, H; Kim, J,期刊：OPTICAL ENGINEERING, 页码：113202-113202 , 文章类型： Correction，,卷期：2011年50-11] Conventional touch-based sensors cannot capture the fingerprint images of all five fingers simultaneously due to their flat surfaces because the view of the thumb is not parallel to the other fingers. In addition, touch-... Comparative study on second harmonic conversion and saturation characteristics of three copper vapor laser beams of same average power and different spatial coherence [作者：Prakash, O; Mahakud, R; Dixit, SK,期刊：OPTICAL ENGINEERING, 页码：114201-114201 , 文章类型： Article，,卷期：2011年50-11] This paper presents a comparative study on second harmonic conversion and saturation behavior of three copper vapor laser (CVL) beams of same average power up to 11 W (510 nm), however with different spatial coherence wi... Randomized SUSAN edge detector [作者：Qu, ZG; Wang, P; Gao, YH; Wang, P,期刊：OPTICAL ENGINEERING, 页码：110502-110502 , 文章类型： Article，,卷期：2011年50-11] A speed up technique for the SUSAN edge detector based on random sampling is proposed. Instead of sliding the mask pixel by pixel on an image as the SUSAN edge detector does, the proposed scheme places the mask randomly ... Encapsulated fiber Bragg grating sensor for high temperature measurements [作者：Reddy, PS; Prasad, RLNS; Sen Gupta, D; Shankar, MS; Narayana, KS; Kishore, P,期刊：OPTICAL ENGINEERING, 页码：114401-114401 , 文章类型： Article，,卷期：2011年50-11] A simple and effective method of encapsulation of a fiber Bragg grating (FBG) sensor for use at elevated temperatures and harsh and corrosive environments using a rigid probe technique is presented in this paper. A thoro... Camera calibration: active versus passive targets [作者：Schmalz, C; Forster, F; Angelopoulou, E,期刊：OPTICAL ENGINEERING, 页码：113601-113601 , 文章类型： Article，,卷期：2011年50-11] Traditionally, most camera calibrations rely on a planar target with well-known marks. However, the localization error of the marks in the image is a source of inaccuracy. We propose the use of high-resolution digital di... Feedback strategy on real-time multiple target tracking in cognitive vision system (vol 50, 107201, 2011) [作者：Shao, J; Jia, Z; Li, ZP; Liu, FQ; Zhao, JW; Peng, PY,期刊：OPTICAL ENGINEERING, 页码：119801-119801 , 文章类型： Article，,卷期：2011年50-11] Rendering high dynamic range images by using integrated global and local processing [作者：Shin, H; Yu, T; Ismail, Y; Saeed, B,期刊：OPTICAL ENGINEERING, 页码：117002-117002 , 文章类型： Article，,卷期：2011年50-11] We propose a new and effective tone reproduction technique that preserves the visibility, contrast, and natural impression of scenes when rendering high dynamic range images on conventional low dynamic range display devi... Analysis of spectral broadening of incoherent light in optical fibers with nonzero dispersion [作者：Soh, DBS; Koplow, JP,期刊：OPTICAL ENGINEERING, 页码：111602-111602 , 文章类型： Article，,卷期：2011年50-11] Fiber dispersion plays a significant role in spectral broadening of incoherent continuous-wave light. We develop a self-consistent stochastic model for spectral broadening of incoherent continuous-wave light through nonl... Reliability of low-index polymer coated double-clad fibers used in fiber lasers and amplifiers [作者：Tankala, K; Guertin, D; Abramczyk, J; Jacobson, N,期刊：OPTICAL ENGINEERING, 页码：111607-111607 , 文章类型： Article，,卷期：2011年50-11] The reliability of low-index polymer coated double-clad (DC) fibers used in the manufacture of fiber lasers and amplifiers has not received adequate attention. This paper evaluates the mechanical reliability of fibers, u... Method of reference tunnel formation for improving forecast results of the laser beams spot images behavior [作者：Timchenko, LI; Poplavskyy, A; Petrovskyi, N; Kokriatskaia, NI; Kutaev, YF,期刊：OPTICAL ENGINEERING, 页码：117007-117007 , 文章类型： Article，,卷期：2011年50-11] A problem of real time processing and forecast of dynamic images is discussed in this paper. A suggested approach to formation of the reference tunnel is based on the information processing method when laser beam centers... New method to improve the accuracy in a sequential lateral shearing interferometer [作者：Vidal, J; Nicolas, J; Campos, J,期刊：OPTICAL ENGINEERING, 页码：115601-115601 , 文章类型： Editorial Material，,卷期：2011年50-11] We present a new technique for measuring ultraprecise absolute optical surfaces. The technique combines the lateral shearing method but using a Fizeau interferometer. It achieves faster reconstructions than with a deflec... All-fiber passive coherent combining of high power lasers [作者：Wang, BS; Sanchez, A,期刊：OPTICAL ENGINEERING, 页码：111606-111606 , 文章类型： Article，,卷期：2011年50-11] We report >100 W output power by coherently combining two, three, and four high power lasers in all-fiber and all-passive configurations using Yb fiber laser cavities operating at a wavelength of 1080 nm with polarizatio... Nonlinear joint fractional Fourier-transform correlator based on the threshold-decomposition preprocessing [作者：Wang, Q; Chen, L; Zhou, JY; Lin, QH,期刊：OPTICAL ENGINEERING, 页码：118201-118201 , 文章类型： Article，,卷期：2011年50-11] The morphological joint fractional Fourier transform correlator (MJFTC), as a modified nonlinear joint fractional Fourier transform correlator (JFTC), is introduced in this paper. An optoelectronic setup that can impleme... Adaptive color contrast enhancement for digital images [作者：Wang, YF; Luo, YP,期刊：OPTICAL ENGINEERING, 页码：117006-117006 , 文章类型： Article，,卷期：2011年50-11] Noncanonical illumination that is too dim or with color cast induces degenerated images. To cope with this, we propose a method for color-contrast enhancement. First, intensity, chrominance, and contrast characteristics ... Performance of a flexible optical aberration generator [作者：Wilcox, CC; Santiago, F; Martinez, T; Andrews, JR; Restaino, SR; Teare, SW,期刊：OPTICAL ENGINEERING, 页码：116601-116601 , 文章类型： Article，,卷期：2011年50-11] The Naval Research Laboratory has developed a method for simulating atmospheric turbulence and a testbed that simulates its aberrations using a liquid crystal (LC) spatial light modulator (SLM). This testbed allows the s... Bends and splitters for self-collimated beams in two-dimensional triangular lattice photonic crystals [作者：Wu, ZH; Xie, K; Yang, HJ; Jiang, P,期刊：OPTICAL ENGINEERING, 页码：114002-114002 , 文章类型： Article，,卷期：2011年50-11] By introducing a line defect and a V-shaped defect into two-dimensional triangular lattice photonic crystals, a 60 deg beam bend, a Y-shaped beam slitter, and a one-to-three beam splitter are designed based on the self-c...