Academic literature on the topic 'Coherence technique'
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Journal articles on the topic "Coherence technique"
Palato, Samuel, Hélène Seiler, Parmeet Nijjar, Oleg Prezhdo, and Patanjali Kambhampati. "Atomic fluctuations in electronic materials revealed by dephasing." Proceedings of the National Academy of Sciences 117, no. 22 (May 14, 2020): 11940–46. http://dx.doi.org/10.1073/pnas.1916792117.
Full textMcNutt, Marcia. "Basis of the coherence technique." Nature 343, no. 6259 (February 1990): 596. http://dx.doi.org/10.1038/343596b0.
Full textYAKOVLEV, D. R., A. GREILICH, M. BAYER, and I. A. YUGOVA. "ELECTRON SPIN COHERENCE IN SINGLY CHARGED QUANTUM DOTS." International Journal of Modern Physics B 23, no. 12n13 (May 20, 2009): 2813–25. http://dx.doi.org/10.1142/s0217979209062396.
Full textQin, Lei, Frank L. Vernon, Christopher W. Johnson, and Yehuda Ben‐Zion. "Spectral Characteristics of Daily to Seasonal Ground Motion at the Piñon Flats Observatory from Coherence of Seismic Data." Bulletin of the Seismological Society of America 109, no. 5 (August 27, 2019): 1948–67. http://dx.doi.org/10.1785/0120190070.
Full textDOLAN, KEVIN T. "SURROGATE ANALYSIS OF MULTICHANNEL DATA WITH FREQUENCY DEPENDANT TIME LAG." Fluctuation and Noise Letters 04, no. 01 (March 2004): L75—L81. http://dx.doi.org/10.1142/s0219477504001677.
Full textLokhande, Prakash. "A NEW AND MODERN DIGNOSTIC TECHNIQUE: SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY (SS-OCT)." CODS Journal of Dentistry 5, no. 2 (2013): 31–33. http://dx.doi.org/10.5005/cods-5-2-31.
Full textAbdushkour, Hesham, Toufique A. Soomro, Ahmed Ali, Fayyaz Ali Jandan, Herbert Jelinek, Farida Memon, Faisal Althobiani, Saleh Mohammed Ghonaim, and Muhammad Irfan. "Enhancing fine retinal vessel segmentation: Morphological reconstruction and double thresholds filtering strategy." PLOS ONE 18, no. 7 (July 19, 2023): e0288792. http://dx.doi.org/10.1371/journal.pone.0288792.
Full textBennett, Michael, and Simon Christie. "Application of a Doppler optical coherence technique to boundary layer sounding." Meteorologische Zeitschrift 16, no. 5 (October 26, 2007): 469–77. http://dx.doi.org/10.1127/0941-2948/2007/0219.
Full textLi, Yandong, Wenkai Lu, Huanqin Xiao, Shanwen Zhang, and Yanda Li. "Dip-scanning coherence algorithm using eigenstructure analysis and supertrace technique." GEOPHYSICS 71, no. 3 (May 2006): V61—V66. http://dx.doi.org/10.1190/1.2194899.
Full textNagpal, Manish, and Gujarat India. "Optical Coherence Tomography Angiography." US Ophthalmic Review 11, no. 2 (2018): 91. http://dx.doi.org/10.17925/usor.2018.11.2.91.
Full textDissertations / Theses on the topic "Coherence technique"
Chau, Alexandra H. (Alexandra Hung) 1980. "Elastography using optical coherence tomography : development and validation of a novel technique." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/91380.
Full textIncludes bibliographical references (p. 161-167).
Atherosclerosis is an inflammatory disease characterized by an accumulation of lipid and fibrous tissue in the arterial wall. Postmortem studies have characterized rupture-prone atherosclerotic plaques by the presence of a large lipid-rich core covered by a thin fibrous cap. Studies employing finite element analysis (FEA) based on ex vivo plaque geometry have found that most plaques rupture at sites of high circumferential stress, thus diagnosis of plaque vulnerability may be enhanced by probing the mechanical behavior of individual plaques. Elastography is a method of strain imaging in which an image sequence of the artery undergoing deformation is acquired, pixel motion is estimated between each frame, and the resulting velocity field is used to calculate strain. In this thesis, optical coherence tomography (OCT), a high-resolution optical imaging modality, is investigated as a basis for FEA and elastography of atherosclerotic plaques. FEA was performed using plaque geometries derived from both histology and OCT images of the same plaque. Patterns of mechanical stress and strain distributions computed from OCT-based models were compared with those from histology-based models, the current gold standard for FEA. The results indicate that the vascular structure and composition determined by OCT provides an adequate basis for investigating the biomechanical factors relevant to atherosclerosis. A new variational algorithm was developed for OCT elastography that improves upon the conventional algorithm by incorporating strain smoothness and incompressibility constraints into the estimation algorithm.
(cont.) In simulated OCT images, the variational algorithm offers significant improvement in velocity and strain accuracy over the conventional algorithm, particularly in the presence of image noise. Polyvinyl alcohol (PVA) phantoms of homogeneous and heterogeneous elastic modulus distribution were developed for further testing of the variational algorithm. Testing with the phantoms indicated that motion- and strain-induced decorrelation between images presents a practical challenge to the implementation of OCT elastography. Analysis of the experimental results led to the identification of potential improvements to the elastography algorithm that may increase accuracy. These improvements may include relaxation of the strain smoothness constraint to incorporate strain discontinuities at boundaries of elastic modulus in heterogeneous regions, and enforcement of geometry compatibility to prevent the estimation of non-physical velocity fields.
by Alexandra H. Chau.
S.M.
Kinnunen, M. (Matti). "Comparison of optical coherence tomography, the pulsed photoacoustic technique, and the time-of-flight technique in glucose measurements in vitro." Doctoral thesis, University of Oulu, 2006. http://urn.fi/urn:isbn:9514281462.
Full textHollington, Barnaby Paul. "Chordal roots, Klangverwandtschaft, euphony and coherence : an approach to ostensibly 'atonal', 'non-tonal' or 'post-tonal' harmonic technique." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/75394/.
Full textPfeffer, Nathalie. "Connaissances expertes, propagation de contraintes et maintien de coherence pour l'aide a la conception. Application a la conception d'equipements electroniques de satellites : le systeme smack." Paris 11, 1992. http://www.theses.fr/1992PA112278.
Full textGerges, Awad Samir. "Novel fibre-optic-based interferometric sensors exploiting coherent and low-coherence signal processing techniques." Thesis, University of Kent, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236854.
Full textWu, Jigang Yang Changhuei Yang Changhuei. "Coherence domain optical imaging techniques /." Diss., Pasadena, Calif. : Caltech, 2009. http://resolver.caltech.edu/CaltechETD:etd-12112008-102138.
Full textAlbezzawy, Muhammad Nabil Mustafa. "Advanced signal processing methods for source identification using references." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0074.
Full textRank-reduced reference/coherence techniques based on the use of references, i.e. fixed sensors, are widely used to solve the two equivalent problems of source extraction and resynchronization encountered during remote sensing of physical fields, when the number of references surpasses the number of incoherent sources. In such case, the cross-spectral matrix (CSM) becomes ill-conditioned, resulting in the invalidity of the least squares LS solution. Although the truncated singular value decomposition (TSVD) was successfully applied in the literature to solve this problem, its validity is limited only to the case of scalar noise on the references. It is also very difficult to define a threshold, for truncation, when the singular values are gradually decreasing. This thesis proposes a solution based on finding a set of virtual references that is maximally correlated with the field measurements, named the maximally-coherent reference (MCR) Technique. This solution is optimal, especially, in the case of correlated noise on the reference, where TSVD fails. However the technique also includes an eigenvalue truncation step, similar to the one required for the TSVD, which necessitates a priori knowledge or the estimation of the number of incoherent sources, i.e. source enumeration, which is an ill-posed inverse problem, insufficiently investigated in the literature within the framework of reference techniques. In this thesis, after providing a unified formalism for all the reference techniques in the literature, three alternative source enumeration methods, applicable to all the reference techniques, were presented namely; a direct likelihood ratio test (LRT) against the saturated model, a parametric bootstrap technique and a cross-validation approach. A comparative study is performed among the three methods, based on simulated numerical data, real sound experimental data, and real electrical motor data. The results showed two important outcomes. The first is that the number of snapshots (spectral windows), used in the spectral analysis, greatly affects the performance of the three methods, and that, they behave differently for the same number of used snapshots. The second is that parametric bootstrapping turned out to be the best method in terms of both estimation accuracy and robustness with regard to the used number of snapshots. Finally, the MCR technique accompanied with bootstrapping was employed for source extraction and resynchronization of real data from laboratory experiments, and an e-motor, and it returned better results than the LS solution and the TSVD when employed for the same purpose
Zhu, Kai. "Coherent and non-coherent techniques for cooperative communications." Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/6852/.
Full textDunsby, Christopher William. "Wide-field coherence-gated imaging techniques including photorefractive holography." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407465.
Full textMéteau, Jérémy. "Instrumentation optique pour la caractérisation des tissus : analyse de la complémentarité et des limites techniques de fluorescence hyperspectrale et de Tomographie Optique Cohérente en vue de leur intégration multimodale." Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2041/document.
Full textThe aim of this activity is the development of a mono point imaging fiber system which uses hyperspectral multi-excitation auto fluorescence technique for biological tissues and the study of an Optical Coherence Tomography system like another modality. At first, this report presents the optical properties of biological tissues and the relevant fluorophores for cancerous tumors detection. Secondly, the fluorescence imaging system instrumentation and hyperspectral analysis are presented with in vitro results. The third part presents the "scan free" optical coherence tomography system which is able to image without optical displacement. It's characterized and have interesting functionality like depth dependant dispersion compensation. These both techniques are complementary because they get different kind of information. The information of the first one is about biochemical composition of the tissues and the information of the second one is about the stucture
Books on the topic "Coherence technique"
Wolfgang, Drexler, Society of Photo-optical Instrumentation Engineers., Optical Society of America, European Physical Society, and European Conference on Biomedical Optics (2003 : Munich, Germany), eds. Optical coherence tomography and coherence techniques: 22-24 June 2003, Munich, Germany. Bellingham, Wash., USA: SPIE, 2003.
Find full textLeitgeb, Rainer A. Optical coherence tomography and coherence techniques V: 24-26 May 2011, Munich, Germany. Bellingham, Wash: SPIE, 2011.
Find full textAndersen, Peter E., and Brett E. Bouma. Optical coherence tomography and coherence techniques IV: 14-17 June 2009, Munich, Germany. Edited by Optical Society of America, SPIE (Society), German Biophotonics Research Program, Photonics4Life (Group), and United States. Air Force. Office of Scientific Research. Bellingham, Wash: SPIE, 2009.
Find full textAndersen, Peter E. Optical coherence tomography and coherence techniques III: 17-19 June 2007, Munich, Germany. Edited by SPIE (Society), Optical Society of America, European Optical Society, Wissenschaftliche Gesellschaft Lasertechnik, and Deutsche Gesellschaft für Lasermedizin. Bellingham, Wash: SPIE, 2007.
Find full textF, Steinert Roger, and Huang David, eds. Anterior segment optical coherence tomography. Thorofare, NJ: SLACK, 2008.
Find full textF, Steinert Roger, and Huang David, eds. Anterior segment optical coherence tomography. Thorofare, NJ: SLACK, 2008.
Find full textAgarwal, Amar. Diagnostic and imaging techniques in ophthalmology. Panamá, Rep. of Panamá: Jaypee-Highlights Medical Publishers, 2009.
Find full text1937-, Meischner P. (Peter), and Chandra Madhukar, eds. Coherent polarimetric radar techniques for microwave propagation and cloud physics research. Köln: DFVLR, 1988.
Find full textDavid, Huang, ed. Imaging the eye from front to back with RTVue Fourier-domain optical coherence tomography. Thorofare, NJ: SLACK, 2010.
Find full textGötz, Alexander. Coherent Time Difference of Arrival Estimation Techniques for Frequency Hopping GSM Mobile Radio Signals. München: Oldenbourg Wissenschaftsverlag Verlag, 2013. http://dx.doi.org/10.1524/9783486748628.
Full textBook chapters on the topic "Coherence technique"
Brun, G., I. Verrier, K. Ben Houcine, C. Veillas, and J. P. Goure. "Low Coherence Interferometric Technique." In Waves and Imaging through Complex Media, 243–50. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0975-1_11.
Full textFriberg, Ari T., and Anna Thaning. "Inverse diffractive optics: asymptotic technique for light of any state of coherence." In Coherence and Quantum Optics VIII, 415–16. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_96.
Full textFilho, Jozue Vieira, Fabricio Guimarães Baptista, and Daniel J. Inman. "A PZT-Based Technique for SHM Using the Coherence Function." In Advanced Aerospace Applications, Volume 1, 111–18. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9302-1_10.
Full textNawrocki, Jerzy, and Zofia Michalewska. "Swept Source OCT for Macular Hole Treated with the Inverted Internal Limiting Membrane Flap Technique." In Atlas of Swept Source Optical Coherence Tomography, 97–113. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49840-9_11.
Full textCuche, E., P. Poscio, and Ch Depeursinge. "Three-Dimensional Microscopy with a Numerical Optical Low-Coherence Holographic Technique." In Optical Technologies in the Humanities, 83–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60872-8_8.
Full textXu, Min, Jing Luo, Hong Liang, Rong-rong Yang, Ying Deng, Fan Yang, Yue-zong Zhou, and Li-feng Gao. "Application of Prestack Wide-Azimuth Coherence Technique in Complex Fault Area." In Proceedings of the 2021 International Petroleum and Petrochemical Technology Conference, 3–12. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9427-1_1.
Full textMaingonnat, Igor, Gilles Tissot, and Noé Lahaye. "Correlated Structures in a Balanced Motion Interacting with an Internal Wave." In Mathematics of Planet Earth, 207–22. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-40094-0_9.
Full textPanta, Prashanth, Chih-Wei Lu, Piyush Kumar, Tuan-Shu Ho, Sheng-Lung Huang, Pawan Kumar, C. Murali Krishna, K. Divakar Rao, and Renu John. "Optical Coherence Tomography: Emerging In Vivo Optical Biopsy Technique for Oral Cancers." In Oral Cancer Detection, 217–37. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-61255-3_11.
Full textRhodes, Michael L., Yu-Ming Kuo, Alex T. Pang, and Stephen L. G. Rothman. "An Image Coherence Technique for Ray Traced Three-Dimensional Presentations in Clinical Radiology." In CAR ’87 Computer Assisted Radiology, 615–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-95530-3_90.
Full textHarrison, C. H. "The Influence of Noise and Coherence Fluctuations on a New Geo-Acoustic Inversion Technique." In Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance, 139–46. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0626-2_18.
Full textConference papers on the topic "Coherence technique"
Nugent, K. A., and J. E. Trebes. "Measurement technique for the spatial coherence of x-ray sources." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.mp1.
Full textChan, Kin Pui, Makoto Yamada, and Humio Inaba. "Imaging through biological tissues by use of optical low-coherence heterodyne detection technique." In Advances in Optical Imaging and Photon Migration. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/aoipm.1996.cit250.
Full textSinescu, Cosmin, Adrian G. Podoleanu, Souman Barua, Florin Ionel Topala, Alin Gabor, Cristian Zaharia, Adrian Bradu, Meda-Lavinia NEGRUTIU, and Virgil F. Duma. "Dental impression technique using optoelectronic devices." In Second Canterbury Conference on Optical Coherence Tomography, edited by Ole Bang and Adrian Podoleanu. SPIE, 2018. http://dx.doi.org/10.1117/12.2281775.
Full textOssowski, Pawel, Maciej Wojtkowski, and Peter R. T. Munro. "Characterization of flowing blood cells using a novel OCT technique: rigorous three-dimensional computational study (Conference Presentation)." In Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, edited by Joseph A. Izatt, James G. Fujimoto, and Valery V. Tuchin. SPIE, 2017. http://dx.doi.org/10.1117/12.2254800.
Full textChathanathil, Jabir, Gengyuan Liu, and Svetlana Malinovskaya. "Remote detection using maximal coherence control technique in coherent anti-Stokes Raman spectroscopy." In Laser Applications to Chemical, Security and Environmental Analysis. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/lacsea.2022.lm3b.5.
Full textKou, Ge, Wanrong Gao, ChunKan Tao, and Luguo Hao. "Low-coherence tomography technique in biological tissues." In Photonics China '98, edited by Junheng Li and James A. Harrington. SPIE, 1998. http://dx.doi.org/10.1117/12.317852.
Full textFuhr, Peter L., and Betty Lise Anderson. "Twin-fiber technique for measuring spatial coherence." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wl40.
Full textKarnowski, Karol, Jadwiga Milkiewicz, Ewa Mączyńska-Walkowiak, Patryk Młyniuk, Onur Cetinkaya, Bartłomiej J. Kałużny, Andrea Curatolo, Ireneusz Grulkowski, and Maciej Wojtkowski. "OCT-based, multi-spot assessment of corneal biomechanical asymmetries – clinical results." In Optical Coherence Tomography. Washington, D.C.: Optica Publishing Group, 2024. http://dx.doi.org/10.1364/oct.2024.cm1e.4.
Full textIzatt, Joseph A., Michael R. Hee, Gary Tearney, Gabrielle M. Owen, Eric Swanson, and James G. Fujimoto. "Optical Coherence Microscopy." In Advances in Optical Imaging and Photon Migration. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/aoipm.1994.ci.249.
Full textWright, Kevin C., L. Suzanne Leslie, and Nicholas P. Bigelow. "Angular Momentum Transfer to BEC by a Two-Photon Stimulated Raman Technique." In Conference on Coherence and Quantum Optics. Washington, D.C.: OSA, 2007. http://dx.doi.org/10.1364/cqo.2007.cmi54.
Full textReports on the topic "Coherence technique"
Chang, Chang. Coherence techniques at extreme ultraviolet wavelengths. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/810486.
Full textDoss, Hani. Statistical Inference for Coherent Systems from Partial Information and in Resampling Techniques in Survival Analysis. Fort Belvoir, VA: Defense Technical Information Center, September 1993. http://dx.doi.org/10.21236/ada277382.
Full textLora, Eduardo, and Andrew Powell. A New Way of Monitoring the Quality of Urban Life. Inter-American Development Bank, November 2011. http://dx.doi.org/10.18235/0011346.
Full textDudley, J. P., and S. V. Samsonov. SAR interferometry with the RADARSAT Constellation Mission. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329396.
Full textDeschamps, Robert, and Henschel. PR-420-133721-R01 Comparison of Radar Satellite Methods for Observation of Stability. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), July 2015. http://dx.doi.org/10.55274/r0010840.
Full textLetcher, Theodore, Julie Parno, Zoe Courville, Lauren Farnsworth, and Jason Olivier. A generalized photon-tracking approach to simulate spectral snow albedo and transmittance using X-ray microtomography and geometric optics. Engineer Research and Development Center (U.S.), June 2023. http://dx.doi.org/10.21079/11681/47122.
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