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Realization of virtual photometric environment by photometric pattern projection
Proceedings 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation. Computational Intelligence in Robotics and Automation for the New Millennium (Cat. No.03EX694), 2004In this paper, we introduce the virtual photometric environment which is one of mixed reality systems. The virtual photometric environment enables arbitrary control over the lighting directions and reflection properties of objects. The environment is realized by photometric pattern projection onto screen objects.
Yasuhiro Mukaigawa +2 more
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The Photometric Sensibility of the Eye and the Precision of Photometric Observations
Journal of the Optical Society of America, 1931In this paper data are presented to show that for maximum photometric sensibility the brightness of the photometric field should be adjusted so that a brightness level of from 20 to 30 millilamberts is secured. At this brightness the difference fraction ΔB/B has a value of 1.37 percent.
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GAIA Photometric System: Simulation of Photometric Observations
Astrophysics and Space Science, 2002We present a software package developed for modelling of the GAIA photometric observations. The modelling procedure is very flexible and fully controlled via the parameter file. Therefore, configuration of the GAIA telescopes and photometric systems, as well as the object samples under investigation, can be adjusted easily.
Viktoras Deveikis +2 more
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Physics Today, 1950
Photometric devices, especially those intended for the measurement of color, must be highly sensitive to small differences if they are to give useful information.
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Photometric devices, especially those intended for the measurement of color, must be highly sensitive to small differences if they are to give useful information.
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Photometric Quantitation of Haemagglutination
Scandinavian Journal of Haematology, 1967A modified technique for photometric quantitation of haemagglutination was employed in experiments with anti‐A test sera and Arcell suspensions. The agglutinates and the free cells were separated by simple sedimentation. As an absolute separation was impossible in this way, no exact estimation of percentage agglutination could be made.
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Photometric Displacement Transducer
IEEE Transactions on Biomedical Engineering, 1969Measurements of variations in intensity of light reflected from a moving surface provide a method for quantitating displacement. A system to monitor displacements of a few microns is easily constructed. This technique has wide application in biological experiments, offering the advantage of probeless displacement monitoring.
G W, Timm, W E, Bradley
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IEEE International Conference on Computational Photography (ICCP), 2013
We introduce a framework for outdoor photometric stereo utilizing natural environmental illumination. Our framework extends beyond existing photometric stereo methods intended for laboratory environments to encompass robust outdoor operation in the real world. In this paper, we motivate our framework, describe the components of its processing pipeline,
Lap-Fai Yu +4 more
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We introduce a framework for outdoor photometric stereo utilizing natural environmental illumination. Our framework extends beyond existing photometric stereo methods intended for laboratory environments to encompass robust outdoor operation in the real world. In this paper, we motivate our framework, describe the components of its processing pipeline,
Lap-Fai Yu +4 more
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PHOTOMETRIC AND IMAGING PERFORMANCE
EAS Publications Series, 2002Three topics within GAIA photometry have been selected for discussion here. (1) The sampling scheme of the CCDs has been tuned to serve the various purposes: detection of stars, astrometry, broad- and medium-band photometry, and imaging of a small area around each detected star, but the tuning may not yet be optimal.
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Photometric titrations—IIDesign and construction of a photometric titrator
Talanta, 1961Abstract The construction of a simple photometric titrator is described. The light receptor is a photo-diode whose design makes it easily possible to exclude external light. Consequently, titrations can be performed with the titration vessel in the open.
H. Flaschka, P. Sawyer
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