J
Jouni Peltoniemi
Researcher at Finnish Geodetic Institute
Publications - 97
Citations - 2863
Jouni Peltoniemi is an academic researcher from Finnish Geodetic Institute. The author has contributed to research in topics: Scattering & Light scattering. The author has an hindex of 27, co-authored 92 publications receiving 2623 citations. Previous affiliations of Jouni Peltoniemi include National Land Survey of Finland & University of Helsinki.
Papers
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Application of photometric models to asteroids.
TL;DR: In this paper, the brightness of a rough and porous surface is parameterized in terms of the optical properties of individual particles, by shadowing between particles, and by the way in which light is scattered among collections of particles.
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Light scattering by gaussian random particles: ray optics approximation
TL;DR: In this article, the shape of irregular small particles using multivariate lognormal statistics (Gaussian random shape) is modeled by the autocovariance function, which can be conveniently modeled by two statistical parameters: the standard deviation of radius and the correlation length of angular variations.
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BRDF measurement of understory vegetation in pine forests: dwarf shrubs, lichen, and moss
Jouni Peltoniemi,Sanna Kaasalainen,Jyri Näränen,Jyri Näränen,Miina Rautiainen,Pauline Stenberg,Heikki Smolander,Sampo Smolander,Pekka Voipio +8 more
TL;DR: The spectral and directional reflection properties of pine forest understory in Suonenjoki, Finland were measured using a newly developed transportable field goniospectrometer under direct sunlight or plant lamp.
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A Critical review of theoretical models of negatively polarized light scattered by atmosphereless solar system bodies
Yu. G. Shkuratov,Karri Muinonen,Edward Bowell,Kari Lumme,Jouni Peltoniemi,Mikhail A. Kreslavsky,D. G. Stankevich,V. P. Tishkovetz,N. V. Opanasenko,L. Y. Melkumova +9 more
TL;DR: In this article, the phase-angle dependence of the degree of polarization observed at small phase angles has been analyzed and it was shown that interference or coherent backscattering mechanism is the most promising model.
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Light scattering by randomly oriented crystals.
TL;DR: The scattering phase function and the degree of linear polarization for small crystals oriented randomly in space have been computed using the geometric ray tracing theory and assuming that the crystals are homogeneous and isotropic.