Results 31 to 40 of about 255,777 (278)
Spectral watertight surface reconstruction
ACM SIGGRAPH 2003 Sketches & Applications, 2003 To reconstruct a surface from an unorganized point set S, we create a point set S+ that adds the vertices of a cubical bounding box, then compute the Delaunay triangulation T and Voronoi diagram Q of S+. We form a graph G whose nodes are vertices of Q, and use a spectral graph partitioning algorithm to cut this graph into two pieces, the inside and ...
Kolluri, Ravi Krishna +2 more
openaire +3 more sources
IEEE Access, 2016 The broadband spectrum contains significantly more information than what the human eye can detect, with different wavelengths providing unique information about the intrinsic properties of an object.
Edward Li +3 more
doaj +1 more source
Spectral Mapping Reconstruction of Extended Sources [PDF]
, 2007 Three dimensional spectroscopy of extended sources is typically performed with dedicated integral field spectrographs. We describe a method of reconstructing full spectral cubes, with two spatial and one spectral dimension, from rastered spectral mapping
Allington-Smith J. R. +14 more
core +2 more sources
Approximate Message Passing in Coded Aperture Snapshot Spectral Imaging [PDF]
, 2015 We consider a compressive hyperspectral imaging reconstruction problem, where three-dimensional spatio-spectral information about a scene is sensed by a coded aperture snapshot spectral imager (CASSI).
Arce, Gonzalo +4 more
core +1 more source
Model-Based Spectral Reconstruction Of Interferometric Acquisitions
ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023 Spectral information of the scene can be reconstructed from processing observations acquired by interferometric devices. In the case of devices that have multiple wave interference (e.g., Fabry-Pérot etalons), a simple inversion such as inverse Fourier transform (e.g., for Michelson-like interferometers) of the measured interferograms is not ...
Jouni, Mohamad +2 more
openaire +2 more sources
Reconstruction of spectral solar irradiance since 1700 from simulated magnetograms [PDF]
, 2016 We present a reconstruction of the spectral solar irradiance since 1700 using the SATIRE-T2 (Spectral And Total Irradiance REconstructions for the Telescope era version 2) model.
Dasi-Espuig, M. +5 more
core +1 more source
Revista Facultad de Ingeniería Universidad de Antioquia, 2016 Spectral imaging systems capture spectral and spatial information from a scene to produce a spectral data cube. Technical progress has allowed developing multispectral filter array (MSFA)-based sensors in order to expand the reconstruction of more bands
Yuri Hercilia Mejía-Melgarejo +2 more
doaj +1 more source
SRT: A Spectral Reconstruction Network for GF-1 PMS Data Based on Transformer and ResNet
Remote Sensing, 2022 The time of acquiring remote sensing data was halved after the joint operation of Gao Fen-6 (GF-6) and Gao Fen-1 (GF-1) satellites. Meanwhile, GF-6 added four bands, including the “red-edge” band that can effectively reflect the unique spectral ...
Kai Mu +5 more
doaj +1 more source
Spectral reconstruction method for exoplanets [PDF]
Journal of Modern Optics, 2010 A method to reconstruct the spectra of exoplanets is presented. The image and objective spectrum of a star–planet system are simultaneously observed. Starlight is destructively interfered to detect faint planetary signals. By referring to the image of the star–planet system, the pseudo objective spectra are computationally synthesized by using the ...
Baba, N. +3 more
openaire +2 more sources
Three-dimensional noninvasive monitoring iodine-131 uptake in the thyroid using a modified Cerenkov luminescence tomography approach. [PDF]
PLoS ONE, 2012 BACKGROUND: Cerenkov luminescence tomography (CLT) provides the three-dimensional (3D) radiopharmaceutical biodistribution in small living animals, which is vital to biomedical imaging.
Zhenhua Hu +6 more
doaj +1 more source