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    Design and research on passenger flow monitoring system of integrated transport hub based on big data

    Yu, Zexia / Hua, Xiaofeng / Liu, Huaqiong | SPIE | 2024
    technology based on 5G mini base station, and realizes the monitoring of real-time passenger flow. The system design considers the real-time nature ...

    Nature, smart structures, and morphing UAVs

    Free access
    Inman, Daniel J. / Haughn, Kevin P. T. / Harvey, Christina | SPIE | 2023
    Nature through careful observation and tests of gliding avian species have resulted in new thoughts on how to design morphing uninhabited ...

    Research progress and prospects of intelligent planning algorithms in navigation collision avoidance

    Jing, Jiancheng | SPIE | 2023
    are still many problems to be solved in ship collision avoidance algorithms, among which the dynamic nature, safety, and complexity of ...

    Market segmentation of public transportation service based on cluster analysis

    Wang, Yang / Zhao, Xinwei | SPIE | 2022
    different streets/towns in spatial location, travel distance, travel purpose, travel time, income age, and path nature. The K-means algorithm ...

    Innovative volume-sharing multi-aperture payload for high resolution small satellites

    Lee, Jun Ho / Han, Seok Gi / Kim, Do Hee et al. | SPIE | 2022
    The nature of optical diffraction limits the spatial resolution of a space-borne optical sensor to the diffraction limit. Using the ...

    Research on risk control of ship cargo transportation safety

    Ma, Zhi-hao / Huang, Yao-liang / Cao, Yang-chong | SPIE | 2022
    cargo transportation. In terms of cargo factors, the nature classification of goods and the influence of packaging methods on ship ...

    Ultrafast nanoscale XUV table-top coherent diffractive imaging

    Eschen, Wilhelm / Schuster, Vittoria / Wang, Sici et al. | SPIE | 2021
    In recent years coherent diffraction imaging (CDI) has evolved into a mature technology. Thanks to its lensless nature, it allowed to ...

    Comprehensive transportation planning research under the background of a strong transportation country: taking Ziyuan County as an example

    Lang, Guoling | SPIE | 2021
    based on Ziyuan County as the research object, sorting out the current situation of the region, including the background situation of nature and ...

    Dynamic vision sensor datasets in the maritime domain

    Rodriguez, Jacob A. / Mauger, Justin / Parameswaran, Shibin et al. | SPIE | 2021
    different nature of the output relative to conventional frame-based cameras, traditional methods of machine learning for computer vision cannot be ...

    Railway vehicle vibration energy harvesting using nonlinear resonators

    Eghbali, Pejman / Farhangdoust, Saman / Younesian, Davood | SPIE | 2020
    nature of random excitation exerted by the rail irregularities. ...

    Simulating bird strikes using smoothed particle hydrodynamics for improved aircraft safety

    Holmes, Ian / Whisler, Daniel | SPIE | 2020
    hydrodynamics (SPH) is used to create a numerical model representing the fluid nature of the collision. By performing various impacts through various ...

    Nature of distracted driving in various physiological conditions

    Chu, Yihang / Chowdhury, Hasanur Rahman / Mitul, Abu et al. | SPIE | 2019

    Adapted learning for polarization-based car detection

    Blin, Rachel / Ainouz, Samia / Canu, Stéphane et al. | SPIE | 2019
    object not only by its shape or color but also by its reflection properties. That feature is a reliable indicator of the physical nature of the ...

    Identifying maritime vessels at multiple levels of descriptions using deep features

    Heyse, David Bo / Warren, Nicholas / Tešić, Jelena | SPIE | 2019
    Varying resolution quality of operational data, size of targets, view occlusions, and large variation in sensors due to nature of overhead ...

    Optical characterization of the Sandia fog facility

    Wright, Jeremy B. / van der Laan, John D. / Sanchez, Andres et al. | SPIE | 2017
    fog in nature and how our generated fog compares. In addition, we will discuss fog distributions and characterization techniques. We will ...

    Terahertz digital holography image denoising using stationary wavelet transform

    Cui, Shan-Shan / Li, Qi / Chen, Guanghao | SPIE | 2015
    affected by speckle noise, on account of the coherent nature of light scattering. Stationary wavelet transform (SWT) is an effective tool in ...

    Review of game theory applications for situation awareness

    Blasch, Erik / Shen, Dan / Pham, Khanh D. et al. | SPIE | 2015
    ; however, variations in social, cultural and behavioral factors include the dynamic nature of the context. In a dynamic data-driven application ...

    Orbital simulations of laser-propelled spacecraft

    Zhang, Qicheng / Lubin, Philip M. / Hughes, Gary B. et al. | SPIE | 2015
    that does not scale well to high Delta v due to the massive nature of the fuel. Directed energy photon propulsion solves this problem by ...

    Helicopter synthetic vision based DVE processing for all phases of flight

    O'Brien, Patrick / Baughman, David C. / Wallace, H. Bruce | SPIE | 2013
    Helicopters experience nearly 10 times the accident rate of fixed wing platforms, due largely to the nature of their mission, frequently ...

    The influence of the space cryogenic environment on space payload

    Tan, Fan-jiao / Long, Fu-nian | SPIE | 2011
    payload a majority of which faces directly to formidable space nature condition. How to insure space payload working effectively on orbit is a key ...

    Relation chain based clustering analysis

    Zhang, Cheng-ning / Zhao, Ming-yang / Luo, Hai-bo | SPIE | 2011
    consider the definition deeply and seriously. This paper demonstrates the nature of clustering, gives the way of understanding clustering ...

    Fiber optic sensor applications in transportation infrastructure protection

    Krohn, David / Nicholls, Paul | SPIE | 2009
    tunnels are challenging due to specific features of their infrastructure, nature of traffic using them and insufficient safety rules on vehicles ...

    Granular processes on Itokawa, a small near-Earth asteroid: implications for resource utilization

    Miyamoto, Hideaki / Kargel, Jeffrey S. / Fink, Wolfgang et al. | SPIE | 2008
    opportunity to discuss the nature of surface materials on a small asteroid. Hayabusa reveals that the asteroid is covered by fine- and coarse-grained ...

    Spectral unmixing using nonnegative basis learning: comparison of geometrical and statistical endmember extraction algorithms

    Parente, Mario | SPIE | 2008
    nature. ...

    Prevention of runway incursions due to closed runways or unsuitable runway choices by enhanced crew situational awareness and alerting

    Vernaleken, Christoph / Urvoy, Carole / Klingauf, Uwe | SPIE | 2007
    , particularly those of temporary nature, the key issue for both extended situational awareness and alerting is how to get the corresponding data to the ...

    Investigation of single-photon propagation velocity in optical fiber

    Ingham, J. D. / Carroll, J. E. / White, I. H. | SPIE | 2006
    Understanding the nature of single-photon propagation and any differences to the classical multi-photon regime is essential to better use ...

    A fully automated image co-registration system

    Lavigne, Daniel A. | SPIE | 2006
    from dissimilar oblique view angles. The system is characterized by its fully automated nature, where no user intervention prevailed. Advanced ...

    Spatial navigation using night vision goggles

    Gauthier, Michelle / Parush, Avi / Macuda, Todd et al. | SPIE | 2006
    Lucas, 1998), few studies have systematically characterized the nature of these effects. To address this issue, the current study examined the ...

    Classification of road sign type using mobile stereo vision

    McLoughlin, Simon D. / Deegan, Catherine / Fitzgerald, Conor et al. | SPIE | 2005
    signs can be classfied by nature of their reflectivity. This is achieved by examining the changes in the reflected light intensity with changes ...

    Control platform for fiber laser management

    Jay, Paul R. / Berolo, Ezio / Murison, Richard | SPIE | 2005
    significant competitive advantage. Depending on the nature of the particular application, effective controls can range from basic pump source ...

    Formal tests for LLM approaches using refined cockpit display technology

    Davis, Randall C. / Wilt, Dennis W. / Henion, James et al. | SPIE | 2005
    ) approach to runway 20 at Wakefield Municipal Airport, VA, (AKQ) was used. The hypothesis was that the intuitive nature of the PFD instrumentation ...

    An autonomous vehicle approach for quantifying bioluminescence in ports and harbors

    Moline, Mark / Bissett, Paul / Blackwell, Shelley et al. | SPIE | 2005
    were not scaled for the inherent small-scale nature of nearshore environments. In addition to marine forcing, many ports and harbors are ...

    A critical review of laser beam welding

    Martukanitz, Richard P. | SPIE | 2005
    opportunity to view the transient nature of laser processing. Advancements in laser source technology include the introduction of higher-power Nd:YAG ...

    Experienced pilot flight tests comparing conventional instrumentation and a synthetic vision display for precision approaches

    Davis, Randall C. / Wilt, Dennis / Henion, James et al. | SPIE | 2004
    intuitive nature of the HITS/SVS architecture provides greater situational awareness, less pilot workload, and improved accuracy during instrument ...

    Infrared laser transillumination CT imaging system using parallel fiber arrays and optical switches for finger joint imaging

    Sasaki, Yoshiaki / Emori, Ryota / Inage, Hiroki et al. | SPIE | 2004
    scattering nature. That property enables us to reconstruct tomographic images using the same reconstruction technique as that of X-Ray CT, i.e., the ...

    Multisensor fusion and enhancement using the Retinex image enhancement algorithm

    Rahman, Zia-ur / Jobson, Daniel J. / Woodell, Glenn A. et al. | SPIE | 2002
    other data streams as well, resulting in greater overall information. The fusion uses the multiscale nature of the algorithm to both enhance and ...

    Using flat-panel displays in a hybrid analog/digital system

    Herman, Robert P. / Seinfeld, Robert D. | SPIE | 2002
    very adequate, however new flight restrictions by the FAA and a host of additional flight aids which are digital in nature require more ...

    DEM integrity monitor experiment (DIME) flight test results

    Uijt de Haag, Maarten / Young, Steve D. / Sayre, Jonathon et al. | SPIE | 2002
    nature of SVS displays high integrity requirements may be imposed on the various databases used to generate the imagery on the displays even when ...

    Real and virtual nature of image edges intersections

    Al-Shalfan, Khalid A. / Ipson, Stan S. / Haigh, John G. B. | SPIE | 2001
    merits further investigation. This paper presents a computational technique to identify the real or virtual nature of the edge intersections. The ...

    Learned trafficability models

    Digney, Bruce L. | SPIE | 2001
    difficulty of offline specification and changing nature of terrain characteristics requires that solutions be capable of learning without prior ...

    Interaction mechanisms in acousto-photonic imaging

    Stott, Johnathan J. / Townsend, Daniel J. / Kashambala, Manda et al. | SPIE | 2000
    generated acoustic `virtual' sources to improve the resulting images. We lack, however, a detailed understanding of the nature of the interaction ...

    Sensor fusion: a preattentive vision approach

    Watkins, Wendell R. / CuQlock-Knopp, V. Grayson / Jordan, Jay B. et al. | SPIE | 2000
    3D in nature. This process automatically combines the color, texture, and size and shape of the objects that make up the two images that our ...

    Latency: requirements and implementation of a helmet-mounted cueing system (HMCS) in a fast jet

    Kranz, Yaron S. | SPIE | 1999
    different avionics configurations as well as in diversified flight conditions. This paper discusses the nature of latency effects in aircraft level ...

    Comparative review of image processing and computer vision textbooks

    Maxwell, Bruce A. | SPIE | 1998
    differ significantly in their coverage, scope, approach, and target audience. Because of the multi-disciplinary nature of this field, it is ...

    Tunable hybrid spectral imaging optic: experimental results

    Fritz, Bernard S. / Cox, J. Allen | SPIE | 1997
    An optical device is presented that uses the highly wavelength dispersive nature of diffractive optics to provide a means of either ...

    Symmetry-based vehicle location for AHS

    Kuehnle, Andreas | SPIE | 1997
    likely presence and approximate location of a vehicle. The speed of the algorithm results from its data driven nature. Typical results for this ...

    Status of recent developments in collision avoidance using motion detectors based on insect vision

    Abbott, Derek / Moini, Alireza / Yakovleff, Andre et al. | SPIE | 1997
    of nature in that the insect eye is so compact with parallel processing, enabling compact motion detection without the computational overhead ...

    Application of cognitive controls for unmanned aircraft

    Walker, Gregory W. | SPIE | 1996
    Cognitive computing refers to an emerging family of problem-solving methods that mimic the intelligence found in nature. The common goal of ...

    Holographic recording materials: an overview

    Lessard, Roger A. / Manivannan, Gurusamy | SPIE | 1995
    given under four major classifications based on the holographic recording mechanism and nature as: photopolymerizable systems ...

    Holopoetry: the new frontier of language--an interview with Eduardo Kac

    Whitman, I. V. | SPIE | 1995
    the visual arts, visual perception, digital imaging, holography, and the complex nature of language. ...

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