Results 11 to 20 of about 127,969 (344)

Photometric Redshifts for Next-Generation Surveys [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2022
Photometric redshifts are essential in studies of both galaxy evolution and cosmology, as they enable analyses of objects too numerous or faint for spectroscopy.
J. Newman, D. Gruen
semanticscholar   +1 more source

Deep Learning Methods for Calibrated Photometric Stereo and Beyond [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2022
Photometric stereo recovers the surface normals of an object from multiple images with varying shading cues, i.e., modeling the relationship between surface orientation and intensity at each pixel.
Yakun Ju   +5 more
semanticscholar   +1 more source

Leveraging Photometric Consistency Over Time for Sparsely Supervised Hand-Object Reconstruction [PDF]

open access: yesComputer Vision and Pattern Recognition, 2020
Modeling hand-object manipulations is essential for understanding how humans interact with their environment. While of practical importance, estimating the pose of hands and objects during interactions is challenging due to the large mutual occlusions ...
Yana Hasson   +5 more
semanticscholar   +1 more source

The Clustering of DESI-like Luminous Red Galaxies Using Photometric Redshifts [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We present measurements of the redshift-dependent clustering of a DESI-like luminous red galaxy (LRG) sample selected from the Legacy Survey imaging dataset, and use the halo occupation distribution (HOD) framework to fit the clustering signal.
R. Zhou   +13 more
semanticscholar   +1 more source

Deep Photometric Stereo for Non-Lambertian Surfaces [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2020
This paper addresses the problem of photometric stereo, in both calibrated and uncalibrated scenarios, for non-Lambertian surfaces based on deep learning.
Guanying Chen   +4 more
semanticscholar   +1 more source

Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties [PDF]

open access: yes, 2016
At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7.
G. C. Brown   +11 more
semanticscholar   +1 more source

Self-Calibrating Deep Photometric Stereo Networks [PDF]

open access: yesComputer Vision and Pattern Recognition, 2019
This paper proposes an uncalibrated photometric stereo method for non-Lambertian scenes based on deep learning. Unlike previous approaches that heavily rely on assumptions of specific reflectances and light source distributions, our method is able to ...
Guanying Chen   +4 more
semanticscholar   +1 more source

EAZY: A Fast, Public Photometric Redshift Code [PDF]

open access: yes, 2008
We describe a new program for determining photometric redshifts, dubbed EAZY. The program is optimized for cases where spectroscopic redshifts are not available, or are only available for a biased subset of the galaxies.
G. Brammer, P. V. van Dokkum, P. Coppi
semanticscholar   +1 more source

Comparative Study of Light Sources for Household

open access: yesManagement Systems in Production Engineering, 2017
The article describes test results that provided the ground to define and evaluate basic photometric, colorimetric and electric parameters of selected, widely available light sources, which are equivalent to a traditional incandescent 60-Watt light bulb.
Pawlak Andrzej, Zalesińska Małgorzata
doaj   +1 more source

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