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AUTOMATIC BUILDING EXTRACTION AND 3-D CITY MODELING FROM LIDAR DATA BASED ON HOUGH TRANSFORMATION
LIDAR Modeling City Graphics
2015/6/1
This paper proposes a new method of LIDAR data processing to automatically extract building and 3-D city modeling. This method
exploits image processing technique including Hough transformation. The...
Schrodinger's Hat: Electromagnetic, acoustic and quantum amplifiers via transformation optics
Schrodinger's Hat Electromagnetic acoustic quantum amplifiers transformation optics
2011/8/18
Abstract: The advent of transformation optics and metamaterials has made possible devices producing extreme effects on wave propagation. Here we give theoretical designs for devices, Schr\"odinger hat...
Appell Transformation and Canonical Transforms
heat equation paraxial wave equation Appell transformation
2011/8/17
Abstract: The interpretation of the optical Appell transformation, as previously elaborated in relation to the free-space paraxial propagation under both a rectangular and a circular cylindrical symme...
Polarization-dependent transformation of a paraxial beam upon reflection and refraction: a real-space approach
Polarization-dependent transformation paraxial beam real-space approach reflection refraction
2011/8/3
Abstract: We analyze the paraxial beam transformation upon reflection and refraction at a plane boundary. In contrast to the usual approach dealing with the beam angular spectrum, we apply the continu...
Nonlinear transformation optics and engineering of the Kerr effect
Nonlinear transformation optics engineering of the Kerr effect Materials Science
2011/8/1
Abstract: The concept of transformation optics is extended to nonlinear electrodynamics. It is shown that transformation optics favors implicit constitutive relations in terms of energy densities D.E ...
Transformation Optics in Nonvacuum Initial Dielectric Media
Transformation Optics Nonvacuum Initial Dielectric Media
2010/11/12
Previous formulations of transformation optics have generally been restricted to transformations from relatively simple initial media, such as the vacuum, because of limitations due to their non-cova...
Generation and Transformation of Partially Coherent Laser Beams
Partially coherent beam Tensor ABCD law Spatial-temporal phase modulation
2009/6/8
The recent progresses in the generation and transformation of partially coherent beams are reviewed. The analytical propagation formulae for the cross-spectral density of the partially coherent anisot...
Semiunitary Transformation and Isospectral Hamiltonians
in Arbitrary Dimensional Space
semiunitary transformation action-angle approach
isospectrality of Hamiltonians deformed angular momentum algebra
2007/8/15
2001Vol.36No.1pp.25-28DOI:
Semiunitary Transformation and Isospectral Hamiltonians
in Arbitrary Dimensional Space
RUAN Dong,1,2,3 WANG Xue-Jin,4 HUANG Wei-Cheng2,5 and SUN Hong-Z...