Results 11 to 20 of about 90,404 (262)

A comprehensive introduction to photometric 3D-reconstruction [PDF]

, 2020
Photometric 3D-reconstruction techniques aim at inferring the geometry of a scene from one or several images, by inverting a physical model describing the image formation.
Durou J. -D., Falcone M., Tozza S., Queau Y.   +3 more
core   +1 more source

IoT-based pesticide distribution control system with photometric sensor framework [PDF]

, 2022
The use of pesticides is often given under extreme conditions. The excess use of these pesticides can harm both the farmers directly and the affected environment; this is the impact of the uncontrolled use of pesticides.
Rosyid Ridlo, Al Hakim, Agung, Pangestu, Ropiudin, -, Yanuar Zulardiansyah, Arief, Hexa Apriliana, Hidayah, Ichsani Nurul, Islam, Ariep, Jaenul   +6 more
core   +1 more source

Photometric SFR using machine learning [PDF]

, 2019
Star formation rates (SFRs) are crucial to constrain theories of galaxy formation and evolution. SFRs are usually estimated via spectroscopic observations requiring large amounts of telescope time.
Riccio G., Delli Veneri M., Cavuoti S., Longo G., Brescia M.   +4 more
core   +1 more source

Calibrating photometric redshifts of luminous red galaxies [PDF]

, 2005
We discuss the construction of a photometric redshift catalogue of luminous red galaxies (LRGs) from the Sloan Digital Sky Survey (SDSS), emphasizing the principal steps necessary for constructing such a catalogue: (i) photometrically selecting the ...
Loveday, J, Szapudi, I, De Propris, R., Bridges, Terry, De Propis, Roberto, Eisenstein, Daniel J, Wake, David, Bridges, T, Szalay, Alexander S, Cannon, R, Csabai, I, Szalay, Alexander S., Szalay, A S, Seljak, U, Scranton, R., Schlegel, D J, Scranton, R, Nichol, R C, Eisenstein, D J, Hewett, Paul C., Seljak, U., Drinkwater, M, Szalay, A. S., Shanks, Tom, Szapudi, I., de Propris, R, Schneider, D. P., Croom, Scott M., Drinkwater, Michael, Schlegel, David J, Connolly, Andrew J., Nichol, Bob, Schneider, Donald P, Loveday, Jon, Shanks, T., Schlegel, David J., Nichol, Robert C, Hewett, P C, Connolly, Andrew J, Csabai, Istvan, Croom, S M, Brinkmann, Jonathan, Nichol, Robert C., Pimbblet, Kevin A., Budavari, Tamas, Wake, D, Brinkmann, J, Hewett, Paul C, Seljak, Uros, Shanks, T, Szapudi, Istvan, Schneider, Donald P., Padmanabhan, N, Connolly, A J, Eisenstein, Daniel J., Propris, Roberto De, Croom, Scott M, Pimbblet, K A, Drinkwater, Michael., Schneider, D P, Cannon, Russell, Padmanabhan, Nikhil, Pimbblet, Kevin A, Scranton, Ryan, Budavari, T, De Propris, Roberto, Szalay, Alexander, Connolly, Andrew, Nichol, Robert, Drinkwater, Michael John, Pimbblet, Kevin, Croom, Scott, Schneider, Donald, Eisenstein, Daniel, Schlegel, David, Bridges, Terry C   +75 more
core   +1 more source

Detection of nitrite by flow injection analysis using a novel paired emitter-detector diode (PEDD) as a photometric detector [PDF]

, 2007
An inexpensive flow injection analysis system for determining low concentration levels of nitrite employing the Griess reagent spectrophotometric method is reported.
O'Toole, Martina, O\u27Toole, Martina, Shepherd, Roderick, Lau, King-Tong, Diamond, Dermot, Dermot Diamond, Roderick Shepherd, King-Tong Lau, Martina O'Toole   +8 more
core   +2 more sources

Velocimetry of red blood cells in microvessels by the dual-slit method: Effect of velocity gradients [PDF]

, 2012
The dual-slit is a photometric technique used for the measurement of red blood cell (RBC) velocity in microvessels. Two photometric windows (slits) are positioned along the vessel.
Duru, Paul, Lorthois, Sylvie, Risso, Frédéric, Roman, Sophie   +3 more
core   +1 more source

Cosmology with photometric redshift surveys [PDF]

, 2005
We explore the utility of future photometric redshift imaging surveys for delineating the large-scale structure of the Universe, and assess the resulting constraints on the cosmological model. We perform the following two complementary types of analysis.
Bridle, Sarah, Bridle, S., Blake, Chris, Blake, C.   +3 more
core   +1 more source

Experience in CCD Photometry at the Tartu Observatory

Open Astronomy, 2003
We give overview of the CCD instrumentation and data reduction techniques used at the Tartu Observatory. The first results from photometric observations of the peculiar variable V838 Mon are presented.
Tuvikene T., Kolka I.
doaj   +1 more source

The New Ephemeris and Light Curve Analysis of V870 Ara by the Ground-Based and TESS Data

Open Astronomy, 2021
New CCD photometric observations and their investigation of the W UMa-type binary, V870 Ara, are presented. Light curves of the system were taken through BVIfilters from the Congarinni Observatory in Australia.
Poro Atila, Blackford Mark G., Davoudi Fatemeh, Mohandes Amirreza, Madani Mohammad, Rezaei Samaneh, Bozorgzadeh Elnaz   +6 more
doaj   +1 more source

Measuring redshift-space distortions using photometric surveys [PDF]

, 2011
12 páginas, 14 figuras.-- El Pdf del artículo es la versión pre-print: arXiv:1102.0968v3We outline how redshift-space distortions (RSD) can be measured from the angular correlation function, w(θ), of galaxies selected from photometric surveys.
Ashley J. Ross, Martín Crocce, Cabré, Anna, Gaztañaga, Enrique, Percival, Will, Crocce, M., Ross, Ashley, Cabre, A., Gaztanaga, E., Ross, Ashley J., Will J. Percival, Percival, Will J., Enrique Gaztañaga, Anna Cabré, Crocce, Martín   +14 more
core   +1 more source