Results 41 to 50 of about 3,721 (173)

Automated 3D reconstruction of rural buildings from Structure-from-Motion (SFM) photogrammetry approach

Engineering for Rural Development, 2018
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Pezzuolo, Andrea, Giora, Domenico, Sartori, Luigi, Guercini, Stefano   +3 more
openaire   +3 more sources

Structure from Motion (SFM) – Uma Breve Revisão Histórica, Aplicações nas Geociências e Perspectivas Futuras [PDF]

Anuário do Instituto de Geociências, 2021
O presente artigo de revisao narra a trajetoria de um dos algoritmos mais utilizados na fotogrametria com Veiculo Aereo nao Tripulado (VANT), que a partir da visao computacional, tem se destacado como solucao de baixo custo para obtencao de informacoes da superficie terrestre. Apesar de sua concepcao ter sido formulada em meados da decada de 1950 e com
Guilherme Gandra Franco, André Fonseca Naime   +1 more
openaire   +1 more source

Start, Stop, Rewind, Repeat—Cyclic Exposure of Adipose Stromal Cells‐derived Cartilage Organoids to Chondrogenic and Proliferative Cues to Achieve Scaled‐up and Customizable Bone Formation by Endochondral Ossification

Advanced Healthcare Materials, EarlyView.
This study exploits the plasticity of ASCs‐derived cartilage organoids which generate a perichondrial layer of MSCs when exposed to cyclic chondrogenic/proliferative cues. Using these organoids as building blocks, we develop (i) Phalange Shaped Tissue Engineered Cartilage (Pa‐TECs), recapitulating endochondral ossification suitable for the treatment of
Pablo Pfister, Emilien Lhospice, Andrés García‐García, Robert Paillaud, Sebastian Jung, Romain Schaller, Elisabeth A. Kappos, Claude Jaquiéry, Tarek Ismail, Dirk J. Schaefer, Michael de Wild, Ivan Martin, Alexandre Kaempfen, Arnaud Scherberich, Adrien Moya   +14 more
wiley   +1 more source

The Visual Priming of Motion-Defined 3D Objects. [PDF]

PLoS ONE, 2015
The perception of a stimulus can be influenced by previous perceptual experience, a phenomenon known as perceptual priming. However, there has been limited investigation on perceptual priming of shape perception of three-dimensional object structures ...
Xiong Jiang, Yang Jiang, Raja Parasuraman   +2 more
doaj   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Crop height estimation of sorghum from high resolution multispectral images using the structure from motion (SfM) algorithm

International Journal of Environmental Science and Technology, 2023
Crop height (CH) is the key indicators of crop growth, biomass and yield. However, obtaining CH information with manual measurement is inefficient for larger areas. High-resolution unmanned air vehicle (UAV) images offer a new alternative to traditional CH measurements.
E. Tunca, E. S. Köksal, S. Çetin Taner, H. Akay   +3 more
openaire   +2 more sources

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

Advanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu, Jiaqi Han, Zhe Zheng, Qiang Feng, Dexiao Xia, Xiangjin Ma, Yajie Mu, Guoliang Luo, Rui Li, Haixia Liu, Hao Xue, Long Li   +11 more
wiley   +1 more source

Comparative Assessment of Vertical Precision of Unmanned Aerial Vehicle-Based Geodetic Survey for Road Construction: A Multi-Platform and Multi-Software Approach

Infrastructures
Accurate geodetic surveys are essential for road design, with altimetric accuracy being particularly critical. UAV photogrammetry offers faster and safer data acquisition than conventional methods, but its applicability depends on whether it can meet ...
Brankica Malić, Vladimir Moser, Damir Rajle, Saša Kulić, Ivana Barišić   +4 more
doaj   +1 more source

Rough or Noisy? Metrics for Noise Estimation in SfM Reconstructions

Sensors, 2020
Structure from Motion (SfM) can produce highly detailed 3D reconstructions, but distinguishing real surface roughness from reconstruction noise and geometric inaccuracies has always been a difficult problem to solve.
Ivan Nikolov, Claus Madsen
doaj   +1 more source

The Potential of Multispectral Imagery and 3D Point Clouds from Unoccupied Aerial Systems (UAS) for Monitoring Forest Structure and the Impacts of Wildfire in Mediterranean-Climate Forests

Remote Sensing, 2021
Wildfire shapes vegetation assemblages in Mediterranean ecosystems, such as those in the state of California, United States. Successful restorative management of forests in-line with ecologically beneficial fire regimes relies on a thorough understanding
Sean Reilly, Matthew L. Clark, Lisa Patrick Bentley, Corbin Matley, Elise Piazza, Imma Oliveras Menor   +5 more
doaj   +1 more source