Results 41 to 50 of about 1,671 (165)

Reconstruction method and optimum range of camera-shooting angle for 3D plant modeling using a multi-camera photography system

Plant Methods, 2020
Background Measurement of plant structure is useful in monitoring plant conditions and understanding the responses of plants to environmental changes. 3D imaging technologies, especially the passive-SfM (Structure from Motion) algorithm combined with a ...
Xingtong Lu, Eiichi Ono, Shan Lu, Yu Zhang, Poching Teng, Mitsuko Aono, Yo Shimizu, Fumiki Hosoi, Kenji Omasa   +8 more
doaj   +1 more source

All-sky photogrammetry techniques to georeference a cloud field [PDF]

Atmospheric Measurement Techniques, 2018
In this study, we present a novel method of identifying and geolocalizing cloud field elements from a portable all-sky camera stereo network based on the ground and oriented towards zenith. The methodology is mainly based on stereophotogrammetry which
P. Crispel, P. Crispel, G. Roberts, G. Roberts   +3 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Depositional processes of varved sediments from proglacial Lago Frías since 1800 CE (North Patagonian Andes, Argentina)

Boreas, EarlyView.
The glacierized Valle Frías in Northern Patagonia is one of the best‐studied valleys in South America and includes varved sediments from Lago Frías. We complement this lacustrine record with a high‐resolution documentation of varve counts and their composition.
Bernd Zolitschka, Philipp Böning, A. Catalina Gebhardt, M. Alicia Irurzun, Wojciech Tylmann, Christoph Vogt, Claudia S. G. Gogorza   +6 more
wiley   +1 more source

Biologically‐Oriented Alveolar Ridge Preservation (BARP) in Intact and Compromised Extraction Sockets

Journal of Periodontal Research, EarlyView.
The Biologically‐oriented Alveolar Ridge Preservation (BARP) is an innovative technique characterized by the stratification of different biomaterials (collagen sponge and xenograft) at intact and compromised sockets. In both groups, the hard and soft tissue modification (bone width, bone height, tissue profile, and hard tissue composition) was limited.
Mattia Pramstraller, Roberto Farina, Anina Nives Zuercher, Ronald Ernst Jung, Mike Barbeck, Marco Fracasso, Alberto Sclip, Leonardo Trombelli   +7 more
wiley   +1 more source

Impacts of Mid‐Latitude Ionospheric Dynamics on RF Applications During the November 2025 Superstorm Event

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study demonstrates the intriguing and complex interplay among auroral precipitation, enhanced TEC, density irregularities, and amplitude scintillations observed during the November 2025 superstorm. For the first time, we present observations of strong amplitude scintillation across continental United States (CONUS)—nearly from coast to ...
E. Yizengaw, W. Younas, Y. Nishimura, C. Gabrielse, T. Beach, A. J. Coster, R. Pradipta, K. M. Groves   +7 more
wiley   +1 more source

LIGHT-WEIGHT MULTISPECTRAL UAV SENSORS AND THEIR CAPABILITIES FOR PREDICTING GRAIN YIELD AND DETECTING PLANT DISEASES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this paper we investigate the performance of new light-weight multispectral sensors for micro UAV and their application to selected tasks in agronomical research and agricultural practice.
S. Nebiker, N. Lack, M. Abächerli, S. Läderach   +3 more
doaj   +1 more source

Digital zenith camera accuracy analysis scheme based on digital image processing

Journal of Physics: Conference Series, 2020
Abstract This article uses a digital zenith camera to perform field measurements to obtain high-precision astronomical longitude and latitude data. To identify the photographed stellar markers, we utilize FFT and digital image processing methods to do CCD star image matching, the establishment of a numerical fit model for star matching ...
Deguo Yang, Li Cui, Congxia Liang
openaire   +1 more source

Using a high-precision zenith camera for the determination of the plumb deviations at oil-and-gas deposits [PDF]

Astronomical School’s Report, 2015
Features of the practical using of the matrix receivers of radiation as information recorders to determine the coordinates of point star images. A determination of the coordinates using the high-precision zenith camera and plumb deviation are used for the construction of the geoid surface by the profile.
V. N. Gladilin, I. O. Miskevich, Yu. S. Slipko   +2 more
openaire   +2 more sources

Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage

Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan, Yanlei Liu, Kun Yu, Han Dai, Tianxu Jia, Zhiying Chen, Junsuk Rho, Yufang Liu   +7 more
wiley   +1 more source