In this paper we present a method to calibrate surface photometry of faint sources measured from direct photographic plates such as those of the NGS/POSS and ESO/SRC Sky Survey. This calibration ...

Artel is pleased to announce that its technology was used in a project comparing the photometric and gravimetric methods for micropipette calibrations. Dr. Elsa Batista at the Portuguese National ...

This technical note discusses the rationale for using two-point calibration and multi-point verification in the calibration of aerosol photometers. It explains the theoretical basis for the linear ...

Photometric stereo is a well‐established technique that extracts detailed three‐dimensional information from a series of two‐dimensional images taken under varying illumination from a fixed camera ...

The PDS/Monet measuring engine at NOAO was used to obtain photometry of nearly 10 000 stars on the NGS/POSS and 2000 stars on the ESO/SRC Survey glass plates. These measurements have been used to show ...