Results 71 to 80 of about 313,515 (389)

A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation

Universe, 2021
The light curve period of an asteroid plays an important role in determining the rotation period, the collision evolution and the YORP effect. There are many period extraction algorithms used to find the light curve period of asteroids with long term ...
Yang Liu, Liming Wu, Tianqi Sun, Pengfei Zhang, Xi Fang, Liyun Cheng, Bin Jiang   +6 more
doaj   +1 more source

Optimal multihump filter for photometric redshifts [PDF]

, 2001
We propose a novel type filter for multicolor imaging to improve on the photometric redshift estimation of galaxies. An extra filter - specific to a certain photometric system - may be utilized with high efficiency.
Budavari, Tamas, Connolly, Andrew J., Csabai, Istvan, Szalay, Alexander S., Tsvetanov, Zlatan   +4 more
core   +3 more sources

Deep view synthesis from sparse photometric images

ACM Transactions on Graphics, 2019
The goal of light transport acquisition is to take images from a sparse set of lighting and viewing directions, and combine them to enable arbitrary relighting with changing view.
Zexiang Xu, Sai Bi, Kalyan Sunkavalli, Sunil Hadap, Hao Su, R. Ramamoorthi   +5 more
semanticscholar   +1 more source

Photometric redshift calibration with self-organising maps [PDF]

Astronomy & Astrophysics, 2019
Accurate photometric redshift calibration is central to the robustness of all cosmology constraints from cosmic shear surveys. Analyses of the Kilo-Degree Survey (KiDS) re-weighted training samples from all overlapping spectroscopic surveys to provide a ...
A. Wright, H. Hildebrandt, J. L. van den Busch, C. Heymans   +3 more
semanticscholar   +1 more source

Photoelectric Vilnius Photometry of Stars in the Mega Proper Motion Field KA 10

Open Astronomy, 2003
Photoelectric seven-color photometry in the Vilnius medium-band, system is obtained for 87 stars down to V≃13.0 in the Kiev proper motion field KA10 [l = 137°, b = -59°]. The size of the field is 1.4 square degrees.
Bartašiutė S.
doaj   +1 more source

Example-Based Multispectral Photometric Stereo for Multi-Colored Surfaces

Journal of Imaging, 2022
A photometric stereo needs three images taken under three different light directions lit one by one, while a color photometric stereo needs only one image taken under three different lights lit at the same time with different light directions and ...
Daisuke Miyazaki, Kazuya Uegomori
doaj   +1 more source

Using photometric redshift data to improve the detection of galactic filaments with the Bisous model [PDF]

, 2023
Filament finders are limited, among other things, by the abundance of spectroscopic redshift data. As there are proportionally more photometric redshift data than spectroscopic, we aim to use photometric data to improve and expand the areas where we can detect the large-scale structure of the Universe.
arxiv   +1 more source

Dark Energy Survey Year 1 Results: The Photometric Data Set for Cosmology [PDF]

, 2017
We describe the creation, content, and validation of the Dark Energy Survey (DES) internal year-one cosmology data set, Y1A1 GOLD, in support of upcoming cosmological analyses.
A. Drlica-Wagner, I. Sevilla-Noarbe, E. Rykoff, R. Gruendl, B. Yanny, D. Tucker, B. Hoyle, A. Rosell, G. Bernstein, K. Bechtol, M. Becker, A. Benoit-Lévy, E. Bertin, M. Kind, C. Davis, J. Vicente, H. Diehl, D. Gruen, W. Hartley, B. Leistedt, T. Li, J. Marshall, E. Neilsen, M. Rau, E. Sheldon, J. Smith, M. Troxel, S. Wyatt, Y. Zhang, T. Abbott, F. Abdalla, S. Allam, M. Banerji, D. Brooks, E. Buckley-Geer, D. Burke, D. Capozzi, J. Carretero, C. Cunha, C. D'Andrea, L. Costa, D. Depoy, S. Desai, J. Dietrich, P. Doel, A. Evrard, A. F. Neto, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, D. Gerdes, T. Giannantonio, J. Gschwend, G. Gutiérrez, K. Honscheid, D. James, T. Jeltema, K. Kuehn, S. Kuhlmann, N. Kuropatkin, O. Lahav, M. Lima, H. Lin, M. Maia, P. Martini, R. McMahon, Peter Melchior, F. Menanteau, R. Miquel, R. Nichol, R. Ogando, A. Plazas, A. Romer, A. Roodman, E. Sánchez, V. Scarpine, R. Schindler, M. Schubnell, M. Smith, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, G. Tarlé, V. Vikram, A. Walker, Risa Wechsler, J. Zuntz   +88 more
semanticscholar   +1 more source

Pan-STARRS Photometric and Astrometric Calibration [PDF]

Astrophysical Journal Supplement Series, 2016
We present the details of the photometric and astrometric calibration of the Pan-STARRS1 3π Survey. The photometric goals were to reduce the systematic effects introduced by the camera and detectors, and to place all of the observations onto a ...
E. Magnier, E. Schlafly, D. Finkbeiner, J. Tonry, B. Goldman, S. Roser, E. Schilbach, K. Chambers, H. Flewelling, M. Huber, P. Price, W. Sweeney, C. Waters, L. Denneau, P. Draper, K. Hodapp, R. Jedicke, R. Kudritzki, N. Metcalfe, C. W. Stubbs, R. M. J. I. O. Astronomy, Lawrence Livermore National Laboratory, Hubble Fellow, Itc Harvard-Smithsonian Center for Astrophysics, Department of Astrophysical Sciences Princeton University, M. F. Astronomy, Astronomisches Rechen-Institut Zentrum fur Astronomie der Univers Heidelberg, Department of Astrophysical Sciences Princeton University, Department of Astrophysical Sciences Princeton University, H. C. F. Astrophysics   +29 more
semanticscholar   +1 more source

A design‐oriented approach for managing colored light sources in lighting design software

Color Research &Application, Volume 48, Issue 1, Page 32-39, January/February 2023., 2023
Abstract In the last decade, the extensive introduction of LED lighting sources has brought elements of innovation to interior lighting design in terms of color. Besides the new tunable white LED source, lighting is no longer exclusively white; indeed, colored lighting has entered the design practice thanks to the positive effects on people's health ...
Maurizio Rossi
wiley   +1 more source