Results 261 to 270 of about 13,916,515 (311)

Grounding Image Matching in 3D with MASt3R

European Conference on Computer Vision
Image Matching is a core component of all best-performing algorithms and pipelines in 3D vision. Yet despite matching being fundamentally a 3D problem, intrinsically linked to camera pose and scene geometry, it is typically treated as a 2D problem.
Vincent Leroy, Yohann Cabon, Jérôme Revaud   +2 more
semanticscholar   +1 more source

Exact solution of 3D Timoshenko beam problem: problem-dependent formulation

Archive of Applied Mechanics, 2013
Problem-dependent interpolation functions for displacements and rotations are obtained from the exact analytical solution of the 3D Timoshenko beam problem by introducing a full set of boundary conditions. The stiffness matrix obtained using these interpolation functions matches the one obtained using engineering beam theory leading to the same end ...
Papa Dukić, Edita, Jelenić, Gordan
openaire   +3 more sources

A Fast 3D-BSG Algorithm for 3D Packing Problem

2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007
3D packing is a fundamental problem for VLSI design. It arises from 3D-ICs floorplan design and task schedule in reconfigurable FPGA design. In this paper, we present a novel 3D floorplan representation by improving the 3D bounded slice-surface grid (3D-BSG) structure in two aspects: (1) optimize the evaluation time complexity from O(n3) to O(n2) by ...
Lingyi Zhang, Sheqin Dong, Xianlong Hong, Yuchun Ma   +3 more
openaire   +1 more source

Diffraction Problems of 3D Seismic Imaging

59th EAGE Conference & Exhibition, 1997
Migration is essential to seismic imaging. It is carried out by backward extrapolation of the wavefield registered on the observation surface. The quality of images depends on the accuracy of the wavefield reconstruction at interior subsurface points. From the theory based on the exact solution of the scalar wave equation it is known that, for accurate
openaire   +1 more source

Problems in 3D

1995
In this section I introduce the angular momentum operators and their commutation relations (CR). Later on we will find the eigenfunctions and verify the eigenvalues for some examples. Angular momentum plays an important role in QM. In classical mechanics the angular momentum vector 1 = r × p of a point particle moving in a central potential V(r) is ...
openaire   +1 more source

Computational implementation for 3D problems

2007
The dual reciprocity method (DRM) is a boundary element technique to approach domain-dominant problems without losing the boundary-only nature of the boundary element method. The DRM converts domain integrals into boundary integrals by means of approximation functions.
B. Natalini, V. Popov
openaire   +1 more source

Pose2Mesh: Graph Convolutional Network for 3D Human Pose and Mesh Recovery from a 2D Human Pose

European Conference on Computer Vision, 2020
Most of the recent deep learning-based 3D human pose and mesh estimation methods regress the pose and shape parameters of human mesh models, such as SMPL and MANO, from an input image.
Hongsuk Choi, Gyeongsik Moon, Kyoung Mu Lee   +2 more
semanticscholar   +1 more source

The 3D Navier-Stokes Problem

Annual Review of Fluid Mechanics, 2009
It is not known whether the three-dimensional (3D) incompressible Navier-Stokes equations possess unique smooth (continuously differentiable) solutions at high Reynolds numbers. This problem is quite important for basic science, practical applications, and numerical computations.
openaire   +1 more source

Shrinking problems in 3D printing

Science, 2018
3D Printing![Figure][1] Use of a gel scaffold allows for more-complex 3D printing IMAGE: ORAN ET AL. Although a range of materials can now be fabricated using additive manufacturing techniques, these usually involve assembly of a series of stacked layers, which restricts three-dimensional (3D) geometry. Oran et al.
openaire   +1 more source

3D CBL: an efficient algorithm for general 3D packing problems

48th Midwest Symposium on Circuits and Systems, 2005., 2005
The 3D packing problem is important for practical applications. In the field of VLSI design, 3D packing arises from both the packing of the 3D integrated circuits and the task schedule of FPGA design. In this paper, we propose a novel floorplan representation, named 3D-CBL (3D corner block list) to encode the topology of the 3D packing. Based on triple
null Yuchun Ma, null Xianlong Hong, null Sheqin Dong, C.K. Cheng   +3 more
openaire   +1 more source