Results 21 to 30 of about 274,881 (262)

Schematic surface reconstruction [PDF]

open access: yes2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012
This paper introduces a schematic representation for architectural scenes together with robust algorithms for reconstruction from sparse 3D point cloud data. The schematic models architecture as a network of transport curves, approximating a floorplan, with associated profile curves, together comprising an interconnected set of swept surfaces.
Changchang Wu   +3 more
openaire   +1 more source

Digital Surface Model Interpolation Based on 3D Mesh Models

open access: yesRemote Sensing, 2018
A digital surface model (DSM) is an important geospatial infrastructure used in various fields. In this paper, we deal with how to improve the quality of DSMs generated from stereo image matching.
Soohyeon Kim, Sooahm Rhee, Taejung Kim
doaj   +1 more source

Method of Real-Time Wellbore Surface Reconstruction Based on Spiral Contour

open access: yesEnergies, 2021
A wellbore surface is an irregular surface structure. The distribution of points on the wellbore surface measured based on the drilling diameter is not uniform.
Hongqiang Li, Ruihe Wang
doaj   +1 more source

Computational Geometry-Based Surface Reconstruction for Volume Estimation: A Case Study on Magnitude-Frequency Relations for a LiDAR-Derived Rockfall Inventory

open access: yesISPRS International Journal of Geo-Information, 2021
Key to the quantification of rockfall hazard is an understanding of its magnitude-frequency behaviour. Remote sensing has allowed for the accurate observation of rockfall activity, with methods being developed for digitally assembling the monitored ...
Paul-Mark DiFrancesco   +2 more
doaj   +1 more source

Implicit meshes for surface reconstruction [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2006
Deformable 3D models can be represented either as traditional explicit surfaces, such as triangulated meshes, or as implicit surfaces. Explicit surfaces are widely accepted because they are simple to deform and render, but fitting them involves minimizing a nondifferentiable distance function.
Slobodan Ilic, Pascal Fua
openaire   +3 more sources

3D Reconstruction with Coronary Artery Based on Curve Descriptor and Projection Geometry-Constrained Vasculature Matching

open access: yesInformation, 2022
This paper presents a novel method based on a curve descriptor and projection geometry constrained for vessel matching. First, an LM (Leveberg–Marquardt) algorithm is proposed to optimize the matrix of geometric transformation.
Jijun Tong   +3 more
doaj   +1 more source

Surface reconstruction by Voronoi filtering [PDF]

open access: yesProceedings of the fourteenth annual symposium on Computational geometry - SCG '98, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amenta, Nina, Bern, Marshall
openaire   +3 more sources

Enhancing reversibility of LiNi0.5Mn1.5O4 by regulating surface oxygen deficiency

open access: yesCarbon Energy, 2023
Oxygen deficiency has crucial effects on the crystal structure and electrochemical performance of spinel oxide lithium electrode materials such as LiNi0.5Mn1.5O4 (LNMO) cathode.
Dandan Wang   +8 more
doaj   +1 more source

On-Line Flatness Measurement in the Steelmaking Industry

open access: yesSensors, 2013
Shape is a key characteristic to determine the quality of outgoing flat-rolled products in the steel industry. It is greatly influenced by flatness, a feature to describe how the surface of a rolled product approaches a plane.
Rubén Usamentiaga   +2 more
doaj   +1 more source

A 3-D Surface Reconstruction with Shadow Processing for Optical Tactile Sensors

open access: yesSensors, 2018
An optical tactile sensor technique with 3-dimension (3-D) surface reconstruction is proposed for robotic fingers. The hardware of the tactile sensor consists of a surface deformation sensing layer, an image sensor and four individually controlled ...
Hanjun Jiang   +3 more
doaj   +1 more source

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