Results 11 to 20 of about 275,640 (293)

Construction method of vertebral body geometric shape statistical model fused curvature features

open access: yesXibei Gongye Daxue Xuebao, 2022
现有医学样本库缺乏不同年龄段脊椎的几何形态统计模型, 因此建立一个精度较高、定位准确的椎体几何形态统计模型库就显得迫在眉睫。提出一种基于融合曲率特征的椎体三维几何统计模型构建方法, 根据曲率特征对人体腰椎三维重建模型进行识别和定位, 输出各模型的样本矩阵; 用优化的ICP算法对样本矩阵进行对齐与配准; 用PCA对样本模型进行配准训练, 组成统计模型样本库。
HUI Yu   +4 more
doaj   +1 more source

Hybrid ICP

open access: yes2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2021
ICP algorithms typically involve a fixed choice of data association method and a fixed choice of error metric. In this paper, we propose Hybrid ICP, a novel and flexible ICP variant which dynamically optimises both the data association method and error metric based on the live image of an object and the current ICP estimate.
Dreczkowski, Kamil, Johns, Edward
openaire   +2 more sources

Determination of the Most Suitable Method to Predict the Available Sulfur Content in Cotton Growing Soils: Evidences from Aegean Coast, Türkiye

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2022
In this study, conducted on the selection of the most suitable method of determining the available sulfur content of soils where cotton is grown in the Coastal Aegean Region of Türkiye, soil and leaf samples were taken from a total of 40 cotton ...
Seda Erdoğan Bayram   +1 more
doaj   +1 more source

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb carbonate geochronology: strategies, progress, and limitations

open access: yesGeochronology, 2020
. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb geochronology of carbonate minerals, calcite in particular, is rapidly gaining popularity as an absolute dating method. The high spatial resolution of LA-ICP-MS U–Pb carbonate
N. Roberts   +14 more
semanticscholar   +1 more source

LA-ICP-MS imaging in the geosciences and its applications to geochronology

open access: yes, 2021
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) mapping is a rapidly expanding field in the geosciences because of the wealth of spatial information it provides on the petrogenesis of igneous, metamorphic and sedimentary rocks and
D. Chew, K. Drost, J. Marsh, J. Petrus
semanticscholar   +1 more source

Metodología para la priorización de tecnologías emergentes de recobro mejorado químico

open access: yesRevista Fuentes El Reventón Energético, 2018
Debido al incremento en el consumo de combustibles y los retos que representa la reposición de reservas, la implementación de procesos de recobro mejorado juega un papel fundamental en el balance energético mundial, ya sea mediante el incremento del ...
Claudia Lorena Delgadillo Aya   +4 more
doaj   +1 more source

Recognition and position estimation method for stacked untextured parts [PDF]

open access: yesE3S Web of Conferences
To address the challenge of recognizing and estimating the position of untextured stacked parts, which are common in industrial environments, this study proposes an integrated approach that incorporates the YOLOv7 target detection algorithm and point ...
Zhang Zhao   +3 more
doaj   +1 more source

Diagnostics and prediction of intracranial hypertension on primary computed tomography in patients with severe traumatic brain injury

open access: yesВестник анестезиологии и реаниматологии, 2023
The objective was to compare the optic nerve sheath diameter measured by CT (ODSN-CT) with the level of compression of the mesencephalic  cisterns and the midline shift in the diagnosis and prediction of intracranial hypertension (ICH) during the first 3
A. V. Oshorov   +9 more
doaj   +1 more source

Evaluation of the ICP Algorithm in 3D Point Cloud Registration

open access: yesIEEE Access, 2020
The iterative closest point (ICP) algorithm is widely used in three-dimensional (3D) point cloud registration, and it is very stable and robust. However, its biggest drawback is being easily trapped in a local optimal solution, which results in the ...
Peng Li   +3 more
semanticscholar   +1 more source

Determination of dietary intake of mercury and arsenic in the adult Shiraz population using a Total Diet Study [PDF]

open access: yesBihdāsht-i Mavādd-i Ghaz̠āyī, 2022
Nowadays, chemical food contaminants are considered among the serious health concerns in various countries. Arsenic and mercury are the most important heavy metals which cause different complications in humans.
Fatemeh Hemmati   +5 more
doaj   +1 more source

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