Creating models of real scenes is a complex task for which the use of traditional modeling techniques is inappropriate. For this task, laser rangefinders are frequently used to sample the scene from several viewpoints, with the resulting range images integrated into a final model. In practice, due to surface reflectance properties, occlusions and accessibility limitations, certain areas of the ...

Multiview reconstruction aims at computing the geometry of a scene observed by a set of cameras. Accurate 3D reconstruction of dynamic scenes is a key component in a large variety of applications, ranging from special effects to telepresence and medical imaging. In this paper we propose a method based on Moving Least Squares surfaces which robustly and efficiently reconstructs dynamic scenes ca...

We introduce a novel method for the generation of fully adaptive streak surfaces in time-varying flow fields based on particle advection and adaptive mesh refinement. Moving least squares approximation plays an important role in multiple stages of the proposed algorithm, which adaptively refines the surface based on curvature approximation and circumradius properties of the underlying Delaunay ...

We use symmetric smoothed particle hydrodynamics (SSPH) and moving least squares (MLS) basis functions to analyze six linear elastostatics problems by first deriving their Petrov-Galerkin approximations. With SSPH basis functions one can approximate the trial solution and its derivatives by using different basis functions whereas with MLS basis functions the derivatives of the trial solution in...

Various MLPG methods, with the MLS approximation for the trial function, in the solution of a 4th order ordinary differential equation are illustrated. Both the primal MLPG methods and the mixed MLPG methods are used. All the possible local weak forms for a 4th order ordinary differential equation are presented. In the first kind of mixed MLPG methods, both the displacement and its second deriv...

Mobile laser scanning (MLS) point cloud registration plays a critical role in mobile 3D mapping and inspection, but conventional methods for terrain LiDAR (TLS) are not suitable MLS. To cope with this challenge, we use inertial measurement unit (IMU) to assist propose an MLS method based on trajectory error model. First, model of over short time period construct the constraints between points a...

Supervoxels have a widespread application of instance segmentation on account the merit providing highly approximate representation with fewer data. However, low accuracy, mainly caused by point cloud adhesion in localization industrial robots, is crucial issue. An improved bottom-up clustering method based supervoxels was proposed for better accuracy. Firstly, data were preprocessed to elimina...

In this paper three numerical techniques are proposed for solving the system of N-coupled nonlinear Schrödinger (CNLS) equations. Firstly, we obtain a time discrete scheme by approximating the first-order time derivative via the forward finite difference formula, then for obtaining a full discretization scheme, we use the Kansa’s approach to approximate the spatial derivatives via radial basis ...

In this work, we present the implementation and verification of HiGTree-HiGFlow solver (see for numerical simulation KBKZ integral constitutive equation. The method proposed herein is a finite difference technique using tree-based grids. advantage hierarchical grids that they allow us to achieve great accuracy in local mesh refinements. A moving least squares (MLS) interpolation used adapt disc...