Results 11 to 20 of about 22,841,869 (341)

3D modeling and reconstruction of plants and trees: A cross-cutting review across computer graphics, vision, and plant phenotyping

Breeding Science, 2022
This paper reviews the past and current trends of three-dimensional (3D) modeling and reconstruction of plants and trees. These topics have been studied in multiple research fields, including computer vision, graphics, plant phenotyping, and forestry ...
Fumio Okura
semanticscholar   +1 more source

Single Tree Segmentation and Diameter at Breast Height Estimation With Mobile LiDAR

IEEE Access, 2021
The tree diameter at breast height (DBH) is one of the most important variables for monitoring the forest ecology. Mobile laser scanning (MLS), which has been widely applied in the forestry field, makes DBH measurement fast and convenient. However, there
Lulu Liu, Aiwu Zhang, Shen Xiao, Shaoxing Hu, Nianpeng He, Haiyang Pang, Xizhen Zhang, Shikai Yang   +7 more
doaj   +1 more source

Estimating Carbon, Nitrogen, and Phosphorus Contents of West–East Grassland Transect in Inner Mongolia Based on Sentinel-2 and Meteorological Data

Remote Sensing, 2022
Estimating the carbon (C), nitrogen (N), and phosphorus (P) contents of a large-span grassland transect is essential for evaluating ecosystem functioning and monitoring biogeochemical cycles.
Haiyang Pang, Aiwu Zhang, Shengnan Yin, Jiaxin Zhang, Gang Dong, Nianpeng He, Wenxuan Qin, Dandan Wei   +7 more
doaj   +1 more source

UAV Mapping and 3D Modeling as a Tool for Promotion and Management of the Urban Space

Drones, 2022
In the past few decades, the management of urban spaces with appropriate tools has been in constant discussion due to the plethora of new technologies that have emerged for participatory planning, drone mapping, photogrammetry and 3D modeling.
A. Skondras, E. Karachaliou, I. Tavantzis, Nikolaos Tokas, E. Valari, I. Skalidi, Giovanni Augusto Bouvet, E. Stylianidis   +7 more
semanticscholar   +1 more source

Clinical 3D modeling to guide pediatric cardiothoracic surgery and intervention using 3D printed anatomic models, computer aided design and virtual reality

3D Printing in Medicine, 2022
Background Surgical and catheter-based interventions for congenital heart disease require precise understanding of complex anatomy. The use of three-dimensional (3D) printing and virtual reality to enhance visuospatial understanding has been well ...
R. Ghosh, M. Jolley, C. Mascio, Jonathan M. Chen, Stephanie Fuller, J. Rome, E. Silvestro, K. Whitehead   +7 more
semanticscholar   +1 more source

Rigorous 3D modeling of confocal microscopy on 2D surface topographies

Measurement science and technology, 2021
Although optical 3D topography measurement instruments are widespread, measured profiles suffer from systematic deviations occurring due to the wave characteristics of light. These deviations can be analyzed by numerical simulations.
T. Pahl, Sebastian Hagemeier, J. Bischoff, E. Manske, P. Lehmann   +4 more
semanticscholar   +1 more source

3D-STED Super-Resolution Microscopy Reveals Distinct Nanoscale Organization of the Hematopoietic Cell-Specific Lyn Substrate-1 (HS1) in Normal and Leukemic B Cells

Frontiers in Cell and Developmental Biology, 2021
HS1, the hematopoietic homolog of cortactin, acts as a versatile actin-binding protein in leucocytes. After phosphorylation, it is involved in GTPase and integrin activation, and in BCR, TCR, and CXCR4 downstream signaling. In normal and leukemic B cells,
Marta Sampietro, Marta Sampietro, Marta Sampietro, Moreno Zamai, Alfonsa Díaz Torres, Veronica Labrador Cantarero, Federica Barbaglio, Lydia Scarfò, Lydia Scarfò, Cristina Scielzo, Valeria R. Caiolfa, Valeria R. Caiolfa   +11 more
doaj   +1 more source

Structured3D: A Large Photo-realistic Dataset for Structured 3D Modeling [PDF]

European Conference on Computer Vision, 2019
Recently, there has been growing interest in developing learning-based methods to detect and utilize salient semi-global or global structures, such as junctions, lines, planes, cuboids, smooth surfaces, and all types of symmetries, for 3D scene modeling ...
Jia Zheng, Junfei Zhang, Jing Li, Rui Tang, Shenghua Gao, Zihan Zhou   +5 more
semanticscholar   +1 more source

Estimation of the Grassland Aboveground Biomass of the Inner Mongolia Plateau Using the Simulated Spectra of Sentinel-2 Images

Remote Sensing, 2020
An accurate assessment of the grassland aboveground biomass (AGB) is important for analyzing terrestrial ecosystem structures and functions, estimating grassland primary productivity, and monitoring climate change and carbon/nitrogen circulation on a ...
Haiyang Pang, Aiwu Zhang, Xiaoyan Kang, Nianpeng He, Gang Dong   +4 more
doaj   +1 more source

Grassland Chlorophyll Content Estimation from Drone Hyperspectral Images Combined with Fractional-Order Derivative

Remote Sensing, 2023
Chlorophyll plays a critical role in assessing the photosynthetic capacity and health of grasslands. However, existing studies on the hyperspectral inversion of chlorophyll have mainly focused on field crops, leading to limited accuracy when applied to ...
Aiwu Zhang, Shengnan Yin, Juan Wang, Nianpeng He, Shatuo Chai, Haiyang Pang   +5 more
doaj   +1 more source