Results 41 to 50 of about 13,916,515 (311)

SpatialTracker: Tracking Any 2D Pixels in 3D Space [PDF]

open access: yesComputer Vision and Pattern Recognition
Recovering dense and long-range pixel motion in videos is a challenging problem. Part of the difficulty arises from the 3D-to-2D projection process, leading to occlusions and discontinuities in the 2D motion domain.
Yuxi Xiao   +6 more
semanticscholar   +1 more source

Three-dimensional Imaging Algorithm for Multi-azimuth-angle Multi-baseline Spaceborne Synthetic Aperture Radar

open access: yesLeida xuebao, 2018
Traditional spaceborne Synthetic Aperture Radar (SAR) can acquire three-dimensional (3D) images by using multi-baseline SAR data, which solves the problem of layover in two-dimensional (2D) SAR image, however, there is still a problem of insufficient ...
Kuang Hui   +3 more
doaj   +1 more source

Three-Dimensional Imaging Method for Array ISAR Based on Sparse Bayesian Inference

open access: yesSensors, 2018
The problem of synthesis scatterers in inverse synthetic aperture radar (ISAR) make it difficult to realize high-resolution three-dimensional (3D) imaging.
Zekun Jiao   +3 more
doaj   +1 more source

3D structure–2D plate–1D rod interaction problem

open access: yesMathematical Methods in the Applied Sciences, 2022
In this paper, we consider the equilibrium problem of interaction of three elastic bodies of different elastic properties. The main body is the unit cube. On top of it, there is a thin layer/cuboid of thickness of material whose stiffness is of order that in the middle contains another cuboid which is of width and thickness that is made of ...
Matko Ljulj, Josip Tambača
openaire   +4 more sources

Keefektifan Pembelajaran Model Quantum Teaching Berbantuan Cabri 3D Terhadap Kemampuan Pemecahan Masalah

open access: yesKreano: Jurnal Matematika Kreatif-Inovatif, 2013
Penelitian ini bertujuan untuk mengetahui keefektifan pembelajaran model Quantum Teaching berbantuan Cabri 3D terhadap kemampuan pemecahan masalah peserta didik.
E. Widiyaningsih, E. Pujiastuti
doaj   +1 more source

RECONSTRUCTION OF CONSISTENT 3D CAD MODELS FROM POINT CLOUD DATA USING A PRIORI CAD MODELS [PDF]

open access: yesThe 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

Three-Dimensional Liver Image Segmentation Using Generative Adversarial Networks Based on Feature Restoration

open access: yesFrontiers 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

THE PARALLEL 3D CONVEX HULL PROBLEM REVISITED [PDF]

open access: yesInternational 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

Action2Motion: Conditioned Generation of 3D Human Motions [PDF]

open access: yesACM Multimedia, 2020
Action recognition is a relatively established task, where given an input sequence of human motion, the goal is to predict its action category. This paper, on the other hand, considers a relatively new problem, which could be thought of as an inverse of ...
Chuan Guo   +7 more
semanticscholar   +1 more source

IMAGE SELECTION FOR 3D MEASUREMENT BASED ON NETWORK DESIGN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
3D models have been widely used by spread of many available free-software. On the other hand, enormous images can be easily acquired, and images are utilized for creating the 3D models recently.
T. Fuse, R. Harada
doaj   +1 more source

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