Results 11 to 20 of about 27,083 (265)
THE ALHAMBRA PHOTOMETRIC SYSTEM [PDF]
The Astronomical Journal, 2010 Astronomical Journal on the 14th of January ...
Villegas, T. Aparicio +22 more
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Photometric Segmentation: Simultaneous Photometric Stereo and Masking [PDF]
2019 International Conference on 3D Vision (3DV), 2019 This work is concerned with both the 3D-reconstruction of an object using photometric stereo, and its 2D-segmentation from the background. In contrast with previous works on photometric stereo which assume that a mask of the area of interest has been computed beforehand, we formulate 3D-reconstruction and 2D-segmentation as a joint problem.
Bjoern Haefner +2 more
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Multiview Photometric Stereo [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2008 This paper addresses the problem of obtaining complete, detailed reconstructions of textureless shiny objects. We present an algorithm which uses silhouettes of the object, as well as images obtained under changing illumination conditions. In contrast with previous photometric stereo techniques, ours is not limited to a single viewpoint but produces ...
Carlos Hernández Esteban +2 more
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Photometric Visual Servoing [PDF]
IEEE Transactions on Robotics, 2011 This paper proposes a new way to achieve robotic tasks by 2D visual servoing. Indeed, instead of using classical geometric features such as points, straight lines, pose or a homography, as is usually done, the luminance of all pixels in the image is here considered.
Collewet, Christophe, Marchand, Eric
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Photometric Determination of Phospholipase A [PDF]
Clinical Chemistry and Laboratory Medicine, 1986 A photometric method for the determination of phospholipase A is described, in which fatty acids are liberated from phosphatidylcholine and measured by a discontinuous enzymatic test. Optimal test conditions were evaluated using purified phospholipase A from human and porcine pancreas.
Hoffmann, G. +3 more
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International Journal of Electrochemical Science, 2013 In this work, poly (propylene imine) dendrimer (PPI) was coupled to glucose oxidase enzyme (GOx) in situ and used as a bioreceptor in a glucose biosensor.
Sudheesh K. Shukla +3 more
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On the Data Reduction of WET Observations
Open Astronomy, 2003 It is demonstrated how the length of a continuous time-series of photometric data and their gaps affect the power spectrum of a Fourier Transform of the data.
Pakštienė Erika
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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.
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Photometric Ambient Occlusion [PDF]
2013 IEEE Conference on Computer Vision and Pattern Recognition, 2013 We present a method for computing ambient occlusion (AO) for a stack of images of a scene from a fixed viewpoint. Ambient occlusion, a concept common in computer graphics, characterizes the local visibility at a point: it approximates how much light can reach that point from different directions without getting blocked by other geometry.
Daniel Cabrini Hauagge +3 more
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Comparative Study of Light Sources for Household
Management 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
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