Results 31 to 40 of about 383,058 (315)
RECONSTRUCTION OF CONSISTENT 3D CAD MODELS FROM POINT CLOUD DATA USING A PRIORI CAD MODELS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 We address the reconstruction of 3D CAD models from point cloud data acquired in industrial environments, using a pre-existing 3D model as an initial estimate of the scene to be processed.
A. Bey +4 more
doaj +1 more source
Frontiers in Medicine, 2022 Medical imaging provides a powerful tool for medical diagnosis. In the process of computer-aided diagnosis and treatment of liver cancer based on medical imaging, accurate segmentation of liver region from abdominal CT images is an important step ...
Runnan He +10 more
doaj +1 more source
Quasisolution of the Inverse 3D Aerohydrodynamics Problem [PDF]
Applied Mechanics and Materials, 2014 In the article we generalize the quasisolution approach to the planar aerohydrodynamics problems to 3D case. We search for solution in the form of the spline.
openaire +4 more sources
The Astrophysical Journal Supplement Series, 2023 In this paper, we employ a Harten–Lax–van Leer (HLL) generalized Riemann problem (HLL-GRP) solver within the framework of a finite volume method to model 3D solar coronal structures for the first time.
Mengqing Liu +3 more
doaj +1 more source
THE PARALLEL 3D CONVEX HULL PROBLEM REVISITED [PDF]
International Journal of Computational Geometry & Applications, 1992 In this paper we prove the correctness of a “local” criterion for computing the convex hull of the union ( “merging”) of two disjoint convex polyhedra. This criterion is structural. Therefore it can be algorithmically tested in several ways, not necessarily involving the determination of support (tangent) planes; indeed, it can be implemented by just ...
Amato, Nancy M., Preparata, Franco P.
openaire +2 more sources
A novel approach for partial shape matching and similarity based on data envelopment analysis [PDF]
Компьютерная оптика, 2019 Due to the growing number of 3D objects in digital libraries, the task of searching and browsing models in an extensive 3D database has been the focus of considerable research in the area.
Khadija Arhid +5 more
doaj +1 more source
Joint Optimization of the 3D Model and 6D Pose for Monocular Pose Estimation
DronesThe autonomous landing of unmanned aerial vehicles (UAVs) relies on a precise relative 6D pose between platforms. Existing model-based monocular pose estimation methods need an accurate 3D model of the target.
Liangchao Guo +4 more
doaj +1 more source
3D-Via Driven Partitioning for 3D VLSI Integrated Circuits
CLEI Electronic Journal, 2010 A 3D circuit is the stacking of regular 2D circuits. The advances on the fabrication and packaging technologies allowed interconnecting stacked 2D circuits by using 3D vias.
Sandro Sawicki +3 more
doaj +1 more source
Applied Sciences, 2021 The aim of the perspective-three-point (P3P) problem is to estimate extrinsic parameters of a camera from three 2D–3D point correspondences, including the orientation and position information.
Kai Guo, Hu Ye, Junhao Gu, Honglin Chen
doaj +1 more source
A hierarchical approach to 3D non-parametric surface relief completion
, 2012 Typical stereo and laser scan based 3D acquisition approaches are essentially limited to 2.5D capture. The resulting 3D completion problem, to derive missing information in 2.5D scenes from limited contextual information, has received increasing ...
Fisher, Robert B. +5 more
core +1 more source