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228篇 您的检索式:作者名="Veeraraghavan"
    题名 作者 年代 出处 被引量
1WISH:wavefront imaging sensor with high resolution显示文摘Wavefront sensing is the simultaneous measurement of the amplitude and phase of an incoming optical field.Traditional wavefront sensors such as Shack-Hartmann wavefront sensor(SHWFS)suffer from a fundamental tradeoff between spatial resolution and phase estimation and consequently can only achieve a resolution of a few thousand pixels.To break this tradeoff,we present a novel computational-imaging-based technique,namely,the Wavefront Imaging Sensor with High resolution(WISH).We replace the microlens array in SHWFS with a spatial light modulator(SLM)and use a computational phase-retrieval algorithm to recover the incident wavefront.This wavefront sensor can measure highly varying optical fields at more than 10-megapixel resolution with the fine phase estimation.To the best of our knowledge,this resolution is an order of magnitude higher than the current noninterferometric wavefront sensors.To demonstrate the capability of WISH,we present three applications,which cover a wide range of spatial scales.First,we produce the diffraction-limited reconstruction for long-distance imaging by combining WISH with a large-aperture,low-quality Fresnel lens.Second,we show the recovery of high-resolution images of objects that are obscured by scattering.Third,we show that WISH can be used as a microscope without an objective lens.Our study suggests that the designing principle of WISH,which combines optical modulators and computational algorithms to sense high-resolution optical fields,enables improved capabilities in many existing applications while revealing entirely new,hitherto unexplored application areas.Yicheng Wu Manoj Kumar Sharma Ashok Veeraraghavan 2019Light(Science & Applications)2019,8,1:6
2FUSARIUM-ID v. 1.0: A DNA Sequence Database for Identifying Fusarium显示文摘David M. Geiser María del Mar Jiménez-Gasco Seogchan Kang Izabela Makalowska Narayanan Veeraraghavan Todd J. Ward Ning Zhang Gretchen A. Kuldau Kerry O’donnell 2004European Journal of Plant Pathology (-)2004,,5:2
3Microstructure, tensile deformation and fracture behaviour of aluminium alloy 7055显示文摘T. S Srivatsan S Sriram D Veeraraghavan V. K Vasudevan 1997Journal of Materials Science1997,,11:2
4A survey of efficient reliability computation using disjoint products approach 显示文摘Rai S Veeraraghavan M Trlvedi K S 1995Networks1995,25,1:1
5Revenue management with strategic customers:Last-minute selling and opaque selling显示文摘Jerath K Netessine S Veeraraghavan S K 0,,03:1
6De- velopment of a Novel Electrochemical Method to Deposit High Corrosion Resistant Silicate Layers on Metal Sub- strates显示文摘Basker Veeraraghavan Bala Haran Dragan Slavkov 2003Electrochemical and Solid-State Letters2003,6,2:1
7Synthesis and characterization of a novel non-chrome electrolytic surface treatment process to protect zinc coatings显示文摘Veeraraghavan B Slavkov D Prabhu S 2003Surface and Coatings Technology2003,167,1:1
8Lung fibrosis: new classifications and therapy显示文摘Veeraraghavan S Nicholson AG Wells AU 2001Curr Opin Rheumatol2001,13,6:1
9Dappled photography : mask enhanced cameras for heterodyned light fields and coded aperture refocusing显示文摘VEERARAGHAVAN A RASKAR R AGRAWAI A 2007ACM Trans on Graphics2007,26,3:1
10Synthesis and Characterization of a Novel Non-chrome Electrolytic Surface Treatment Process to Pro- tect Zinc Coatings 显示文摘VEERARAGHAVAN Basker SLAVKOV Dragan PRABHU Swaminathal 2003Surface and Coatings Technology2003,167,1:1
11Improvement on the Multihop Shareholder Discovery for Threshold Secret Sharing in MANETs显示文摘The collaboration of at least a threshold number of secret shareholders in a threshold secret sharing scheme is a strict requirement to ensure its intended functionality.Due to its promising characteristics,such a scheme has been proposed to solve a range of security problems in mobile ad hoc networks.However,discovering a sufficient number of secret shareholders in such dynamic and unpredictable networks is not easy.In this paper,we propose a more efficient shareholder discovery mechanism compared to our previous work.The discovery process is performed in a multihop fashion to adapt to the mobile ad hoc network environment.We introduce batch extension that gradually extends the shareholders' collaboration boundary by more than one hop at a time around the service requestor,to find at least the threshold number of the unknown shareholders.Through the batch extension,reply aggregation is applicable,hence reducing the redundancy use of reply routes,decreasing the required packet transmission,and lessening the service delay,compared to the previously proposed mechanism.Our simulation results show that,with the appropriate batch size,the latest mechanism is more efficient with an insignificant increase of control overhead.Seleviawati Tarmizi Prakash Veeraraghavan Somnath Ghosh 2011Journal of Computer Science & Technology2011,26,4:1
12CT features of lung disease in patients with systemic sclerosis:comparison with idiopathic pulmonary fibrosis and nonspecific interstitial pneumonia显示文摘Desai SR Veeraraghavan S Hansell DM 2004Radiology2004,232,2:1
13Organizing pneumonia:perilobular pattern at thin-section CT显示文摘Ujita M Renzoni EA Veeraraghavan S 0,,:1
14In vitro antioxidant and in vivo anti-inflammatory potential of crude polysaccharide from Turbinaria ornata (Marine Brown Alga)显示文摘Subash Ananthi Hanumantha Rao Balaji Raghavendran Adoor Gopalan Sunil Veeraraghavan Gayathri Ganapathy Ramakrishnan Hannah R. Vasanthi 2009Food and Chemical Toxicology2009,,1:1
15Interstitial lung disease in systemic sclerosis:a simple staging system显示文摘Goh NS Desai SR Veeraraghavan S 2008Am J Respir Crit Care Med2008,177,11:1
16A novel approach for modeling of water jet peening 显示文摘Rajesh N Veeraraghavan S Ramesh Babu N 2004Interna- tional Journal of Machine Tools and Manufacture2004,44,:1
17Synthesis and characterization of a novel non-chrome electrolyticsurface treatment process to protect zinc coatings显示文摘Basker Veeraraghavan Dragan Slavkov 2003Surface and Coatings Technology2003,167,1:1
18An Improved algorithm for symbolic reliability analysis 显示文摘VEERARAGHAVAN M TRIVEDI K S 1991IEEE Transactions on Reliability1991,40,3:1
19NFkappaB signaling related molecular alterations in hu- man neuroblastoma cells after fractionated irradiation显示文摘Madhusoodhanan R Natarajan M Veeraraghavan J 2009J Radiat Res (Tokyo)2009,50,4:1
20Organizing pneu- monia: perilobular pattern at thin-section CT 显示文摘Ujh M Renzoni EA Veeraraghavan S 2004Radiology2004,232,7:1
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