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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37条记录   All-optical clock recovery based on simultaneous external injection-locking and self-seeding of a Fabry-Perot laser diode [作者：Fang, XH; Wai, PKA; Lu, C; Tam, HY; Qureshi, KK,期刊：OPTICAL ENGINEERING, 页码：25003-25003 , 文章类型： Article，,卷期：2011年50-2] We proposed and demonstrated a novel, simple, and low cost method for all-optical clock recovery based on the switching between two injection-locked longitudinal modes in a dc-biased multi-quantum-well Fabry-Perot laser ... Novel communication security scheme using dark-bright soliton conversion behaviors [作者：Pongwongtragull, P; Teeka, C; Kamoldilok, S; Yupapin, PP,期刊：OPTICAL ENGINEERING, 页码：25004-25004 , 文章类型： Article，,卷期：2011年50-2] We propose a novel scheme of communication security using dark-bright soliton conversion behaviors in which the transmission signals can be secured by using the random codes generated by dark-bright soliton conversion wi... Design of a fiber-collimated array for beam combining [作者：Bellanger, C; Brignon, A; Toulon, B; Primot, J; Bouamrane, F; Bouvet, T; Megtert, S; Quetel, L; Allain, T,期刊：OPTICAL ENGINEERING, 页码：25005-25005 , 文章类型： Article，,卷期：2011年50-2] In this paper, we present the design of a very precise collimated fiber array that meets requirements for beam combining. Calculations permit to determine the tolerances toward key parameters and specify the components t... One-time collision arbitration algorithm in radio-frequency identification based on the Manchester code [作者：Liu, CC; Chan, YT,期刊：OPTICAL ENGINEERING, 页码：25006-25006 , 文章类型： Article，,卷期：2011年50-2] In radio-requency identification (RFID) systems, when multiple tags transmit data to a reader simultaneously, these data may collide and create unsuccessful identifications; hence, anticollision algorithms are needed to ... Twin-image elimination using quadrantal masks in a digital holographic microscope [作者：Kim, M; Hong, S; Shim, S; Soh, K; Yu, Y; Shin, S; Kim, J; Kim, J,期刊：OPTICAL ENGINEERING, 页码：25801-25801 , 文章类型： Article，,卷期：2011年50-2] Holography has a considerable advantage of retrieving three-dimensional information of an object from only one interference recording. However, twin images always appear in the reconstruction for the reason of symmetry. ... Dimensionality reduction, classification, and spectral mixture analysis using non-negative underapproximation [作者：Gillis, N; Plemmons, RJ,期刊：OPTICAL ENGINEERING, 页码：27001-27001 , 文章类型： Article，,卷期：2011年50-2] Non-negative matrix factorization (NMF) and its variants have recently been successfully used as dimensionality reduction techniques for identification of the materials present in hyperspectral images. We study a recentl... Palmprint and face score level fusion: hardware implementation of a contactless small sample biometric system [作者：Poinsot, A; Yang, F; Brost, V,期刊：OPTICAL ENGINEERING, 页码：27002-27002 , 文章类型： Article，,卷期：2011年50-2] Including multiple sources of information in personal identity recognition and verification gives the opportunity to greatly improve performance. We propose a contactless biometric system that combines two modalities: pa... Extracting targets from regions-of-interest in infrared images using a 2-D histogram [作者：Park, CW; Lee, JM; Kim, YM; Kim, Y; Song, TL; Park, KT; Moon, YS,期刊：OPTICAL ENGINEERING, 页码：27003-27003 , 文章类型： Article，,卷期：2011年50-2] We propose an effective method of extracting targets from a region-of-interest (ROI) in infrared images by using a 2-D histogram, considering intensity values and distance values from a center of the ROI. Existing approa... Stereo vision-based vehicle detection using a road feature and disparity histogram [作者：Lee, CH; Lim, YC; Kwon, S; Lee, JH,期刊：OPTICAL ENGINEERING, 页码：27004-27004 , 文章类型： Article，,卷期：2011年50-2] This paper presents stereo vision-based vehicle detection approach on the road using a road feature and disparity histogram. It is not easy to detect only vehicles robustly on the road in various traffic situations, for ... Low-memory-usage image coding with line-based wavelet transform [作者：Ye, LN; Guo, JL; Nutter, B; Mitra, S,期刊：OPTICAL ENGINEERING, 页码：27005-27005 , 文章类型： Article，,卷期：2011年50-2] When compared to the traditional row-column wavelet transform, the line-based wavelet transform can achieve significant memory savings. However, the design of an image codec using the line-based wavelet transform is an i... Nonrigid image registration based on control point matching and shifting [作者：Sun, W; Yang, XA,期刊：OPTICAL ENGINEERING, 页码：27006-27006 , 文章类型： Article，,卷期：2011年50-2] In point-based monomodal image registration, registration accuracy relies heavily on control point (CP) locations and correspondences. However, CP extraction and correspondence establishment are still difficult under com... Human confusion costs for object classification [作者：Wu, Y; Liu, YL; Yuan, ZJ; Zheng, NN,期刊：OPTICAL ENGINEERING, 页码：27201-27201 , 文章类型： Article，,卷期：2011年50-2] Most of the traditional evaluation criteria of object classification are based on the error rate, assuming that the costs of different errors are equal. However, the subjective evaluation of the human vision system on su... Detection of dominant flow and abnormal events in surveillance video [作者：Kwak, S; Byun, H,期刊：OPTICAL ENGINEERING, 页码：27202-27202 , 文章类型： Article，,卷期：2011年50-2] We propose an algorithm for abnormal event detection in surveillance video. The proposed algorithm is based on a semi-unsupervised learning method, a kind of feature-based approach so that it does not detect the moving o... Hybrid generative-discriminative human action recognition by combining spatiotemporal words with supervised topic models [作者：Sun, H; Wang, C; Wang, BL,期刊：OPTICAL ENGINEERING, 页码：27203-27203 , 文章类型： Article，,卷期：2011年50-2] We present a hybrid generative-discriminative learning method for human action recognition from video sequences. Our model combines a bag-of-words component with supervised latent topic models. A video sequence is repres... Needle-shape quality control by shadowgraphic image processing [作者：Mairesse, F; Sliwa, TM; Roy, M; Voisin, Y,期刊：OPTICAL ENGINEERING, 页码：27204-27204 , 文章类型： Article，,卷期：2011年50-2] We propose a needle-shape quality-control method. To this end, we have devised a new acquisition system that combines a camera and a backlight. Needle measurements are carried out at a micrometric scale using shadowgraph... Inline inspection of textured plastics surfaces [作者：Michaeli, W; Berdel, K,期刊：OPTICAL ENGINEERING, 页码：27205-27205 , 文章类型： Article，,卷期：2011年50-2] This article focuses on the inspection of plastics web materials exhibiting irregular textures such as imitation wood or leather. They are produced in a continuous process at high speed. In this process, various defects ...