Results 51 to 60 of about 5,446 (116)

A Vision Based Top-View Transformation Model for a Vehicle Parking Assistant

open access: yesSensors, 2012
This paper proposes the Top-View Transformation Model for image coordinate transformation, which involves transforming a perspective projection image into its corresponding bird’s eye vision.
Chien-Chuan Lin, Ming-Shi Wang
doaj   +1 more source

Engineering d-orbital of copper single-atom sites toward industrial-level electrocatalytic methanation

open access: yesNature Communications
Copper (Cu)-based single-atom catalysts (SACs) enable electrocatalytic CO2 reduction into methane (CH4) fuel for thermal power plant decarbonization, yet conventional Cu SACs face industrial deployment barriers like instability and sluggish kinetics ...
Zhengzheng Liu   +16 more
doaj   +1 more source

On Linear Hamiltonian Systems

open access: yesMATEC Web of Conferences, 2017
In this paper we consider the normalization of quadratic Hamiltonian. We get the new method to find the generating function of the canonical transformation. We obtain the solution of the system of matrix equations to find this transformation.
Titova Tatiana
doaj   +1 more source

Analysis of G-Transformation Modes for Building Neuro-like Parallel–Hierarchical Network Identification of Rail Surface Defects

open access: yesMathematics
This work presents the construction of a transformation for the identification of surface defects on rails, starting with the selection of elements from the matrix and the creation of different matrices. It further elaborates on the recursive formulation
Vaidas Lukoševičius   +6 more
doaj   +1 more source

Pilot Protection for Converter-interconnected Lines Based on Multi-stage Mutation of Fault Current

open access: yesZhongguo dianli
The introduction of power electronic converters has altered the fault characteristics of the traditional power grids. Traditional differential protection is inadequate to meet protection requirements when AC lines experience faults, leading to reduced ...
Zhaoyi SHA   +4 more
doaj   +1 more source

Research on Modeling and Solving of Shield Tunneling Posture based on Homogeneous Transformation Matrix

open access: yesJixie chuandong, 2021
In order to more accurately and quickly solve the shield machine pose change during the tunneling process, a positive solution method for the pose of the shield machine based on the spatial homogeneous transformation matrix element is used to establish a
Qiang Zhang   +4 more
doaj  

Mass and Stiffness Correlation Using a Transformation Matrix

open access: yesInfrastructures
Model correlation techniques are methods used to compare two different models, usually a numerical model and an experimental model. According to the structural dynamic modification theory, the experimental mode shapes estimated by modal analysis can be ...
Natalia García Fernández   +3 more
doaj   +1 more source

A Multi-Scale Covariance Matrix Descriptor and an Accurate Transformation Estimation for Robust Point Cloud Registration

open access: yesApplied Sciences
This paper presents a robust point cloud registration method based on a multi-scale covariance matrix descriptor and an accurate transformation estimation.
Fengguang Xiong   +6 more
doaj   +1 more source

Kidney in the transformation matrix

open access: yesEuropean Heart Journal, 2019
Kerneis, Mathieu   +2 more
openaire   +3 more sources

Single Pixel Imaging Based on Bicubic Interpolation Walsh Transform Matrix

open access: yesIEEE Access
Single pixel imaging is a new method, but imaging quality and speed are the main factors affecting its practicality. Building upon the attributes of the random measurement and deterministic matrices, a Walsh transformation matrix with bicubic ...
Wenying Zhang, Shanshan Jia, Haoran Zhu
doaj   +1 more source

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