# 32,124 results

Draw, manipulate and reconstruct B-splines.

estimate B-splines with known knot vector, given a set of noisy data points either with known or unknown associated parameter values.As regards the interactive interface, the user is shown a figure window

B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid.

Affine and B-spline grid based registration and data-fitting of two 2D color/grayscale images or 3D volumes or point-data. Registration can be done intensity / pixel based, or landmark /

A non-local learning rule is employed in a repetitive neurocontroller based on B-spline network.

http://dx.doi.org/10.1109/IECON.2013.6700120 [**] weight constraints are used instead of forgetting and that turns out to robustify the controller. Hence, the same idea has been tested also in the B-spline based repetitive neurocontroller

MATLAB library for elastic functional data analysis

Using Implicit B-Splines for Surface Reconstruction out of 3D point clouds.

Using Implicit B-Splines for Surface Reconstruction out of 3D point clouds.Please cite the following paper, in case of using the code:Rouhani M. and Sappa A.D., Implicit B-spline fitting using the 3L

Fit, evaluate, differentiate non-uniform B-splines of any order - fast

fastBSpline - A fast, lightweight class that implements non-uniform B splines of any order Matlab's spline functions are very general. This generality comes at the price of speed. For large-scale

Numerical computation with functions

Finite element library for solving plane elasticity problems

draw19 is a collection of the MATLAB's functions that allows one to draw various geometric entities in the plane.

A toolbox for nonparametric probability function estimation using normalized B-splines

A MATLAB toolbox 'bsspdfest' implementing nonparametric probability function estimation using normalized B-splines was developed. The toolbox implements nonparametric probability function estimation

Computes the B-spline approximation from a set of coordinates. Supports periodicity and n-th order approximation.

Computes the B-spline approximation from a set of coordinates (knots).The number of points per interval (default: 10) and the order of the B-spline (default: 3) can be changed. Periodic boundaries

Shape Context based nonrigid registration of 2D/3D objects, to build Active Shape Models

Shape Context is a method to get an unique descriptor (feature vector) for every point of an object contour or surface. This descriptor is used in combination with a b-spline free form deformation

Basic toolbox for polynomial B-splines on a uniform grid. OO overloading of common operators.

B-splines is a natural signal representation for continous signals, wheremany continous-domain operations can be carried out exactly once theB-spline approximation has been done.The B-spline

Given a 3D cloud of points accompanied by normals an implicit b-spline surface is reconstructed.

A fast surface reconstruction is implemented in this set of codes. Given a 3D cloud of points accompanied by normal vectors an implicit b-spline surface will be reconstructed.Please cite the

Spline toolbox for the definition, evaluation and visualization of spline curves and surfaces based on standard B-splines

The Spline toolbox allows the definition, evaluation and visualization of spline curves and surfaces based on standard B-splines. Furthermore, it provides an approximation algorithm with the

Matlab toolbox for generating meshes from EBSD data

Construct coefficients of interpolating or smoothing BSplines from N-dimensional array, analytically

Class to enable BSpline signal and image processing. Based off of the papers:M. Unser, A. Aldroubi, and M. Eden, "B-Spline Signal Processing: Part I - Theory," IEEE Trans Sig Proc, 41(2):821-833

B-splines interpolation

Interpolación por basic splines. Para apoyo en las clases de creación de videojuegos de la Universidad Loyola, en Sevilla.

A toolbox for performing image registrations on 4D RTOG files or any other volumetric image.

This toolbox contains all the functions necessary for extraction and registration of medical RTOG images using a cubic-B-spline free form deformation technique. The optimization routine uses a

Separating periodic signals from their aperiodic background

presents a method for modelling periodic signals having an aperiodic trend using the method of variable projection. In particular, this paper focuses on using B-Splines to model the a-periodic portion. The

2D-DIC program that uses contiguous circular subsets, biquintic B-spline interp, and complex ROIs

This computes the H-infinity optimal causal filter (indirect B-spline filter) for the cubic spline.

Computes the H-infinity optimal causal filter (indirect B-spline filter) for the cubic spline.[INPUT]d: delay[OUTPUT]psi: the optimal filter psi(z) in a TF objectgopt: optimal valueThis file is based

Some basic codes in Computer Aided Design

Surface16.Plot B-Spline Curve

### Workflow for chromatogram alignment using the semi-parametric time warping algorithm

Version 1.0.0.0

Christina de Bruyn KopsWorkflow for chromatogram alignment using the semi-parametric time warping algorithm

Signal Processing on non-euclidien domain signals

G1 and G2 fitting with clothoids, circle and biarc

AxonSeg is a GUI that performs axon and myelin segmentation on histology images.

nu_corrector is a tool for correcting vignetting and bias of image.

with an MRI machine, or by non-uniform X-ray beam for CT images acquired with a CT scanner. Bias is a smooth field in any format, which can be represented by for example a bipoly model, B-Spline

C-code version of B-spline repetitive controller

This model is a C-code version of http://www.mathworks.com/matlabcentral/fileexchange/49023-b-spline-based-repetitive-neurocontroller uploaded by Bartlomiej Ufnalski.

A recursive function that computes the b-spline basis atoms, it's very compact

a function to compute the b-spline points on a gridusage y = spline_recursion (u,n)n is the order of the spline u is the grid pointexample:t=linspace(-2,10,10000);y1=spline

The concept of B-spline based repetitive control is explored within the frame of motion control.

remember to click the Build button in the S-Function block before attempting to run the model. More info: M. Malkowski, B. Ufnalski and L. M. Grzesiak, B-spline based repetitive controller revisited: error

Spline object modification / transformation

A little piece of code enabling quick modification of spline objects: clipping, shifting, and scaling in both x, and y.

Zero-phase filtering using B-Spline networks.

bsn1.m implements a zerophase low pass filter using a novel structure called B-Spline Networks (BSN).This function was originally developed for use with the LFFC (learning feedforward control).A nice

This is a function to draw a closed cubic B-Spline.

This is a function to draw a closed cubic B-Spline, based on by David Salomon (great book!), page 261 (closed cubic B-Spline curve).usage:closed_cubic_bspline(P,1) will compute and plot the closed

Zero-phase filtering using B-Spline Networks with dilation 2.

Similar to "bsn1.m", "bsn2.m" provides dilation 2 in the B-Spline network (BSN) which are used as a new way of performing approximate zero-phase low pass filtering.The transfer function of the

Draw Cubic, Hermite, Bezier and B-Spline curves by entered points.

This is an image registration Matlab program developed based on B-spline composition and level sets.

In this code, the image is defined using B-spline level set functions and they are deformed by using a composition approach. The computation composed of efficient algorithms for calculating the

MATLAB interface to aid in plotting of VMEC output.

A toolbox for medical image registration.

Sandia Matlab AnalysiS Hierarchy

Core tools required for running Canlab Matlab toolboxes. The heart of this toolbox is object-oriented tools that enable interactive analysis

1D and 2D splines

`Splines` is a set of C++ classes (with MATLAB mex interface) which implements varios spline interpolation.The classes are the following: - ConstantSpline, for piecewise constants functions -

MATLAB functions for processing data from the Vienna Ab initio Simulation Package (VASP).

hyperdistance from NEB calculation.neb_spline(directory,N)Fit energies and forces of a NEB calculation using a spline.num_images()Determine number of images used in a NEB calculation.number2chemsym(Z)Get the

Parameterized parts for Simscape Multibody, with gear assemblies and MATLAB code for extrusions

: https://github.com/mathworks/Simscape-Multibody-Parts-Library/archive/23.1.4.0.zipFor R2022b: https://github.com/mathworks/Simscape-Multibody-Parts-Library/archive/22.2.4.0.zipFor R2022a: https://github.com/mathworks/Simscape-Multibody-Parts-Library/archive/22.1.4.0.zipFor R2021b

A vectorized, parallel capable, cubic spline interpolation/extrapolation function for non-uniformly distributed 1d data

The publication of this function was inspired by the poor job done by several implementations of the 1d cubic spline publications in Matlab's file exchange repos.This function was part of one of my

Computate NURBS curves and the derivatives

Lay Data

Medical software for Processing multi-Parametric images Pipelines

requirements:Matlab 2017b or higherToolboxes (Mandatory : Image Processing Toolbox -- Recommended : Statistics and Machine Learning Toolbox ; Parallel Computing Toolbox)Java 8 or higherData to process in Bruker / DICOM

Basis functions for B-Splines (including nonrational and rational B-Splines).

Given the number of control points(N), the order of Splines (K), a sequence of knot vector (T), and the file name of txt format, the function basisfunc_NBS computes the nonrational (unweighted) basis

Pick & Place application by integrating Matlab & ROS

The program splineLength.m calculates numerically the arc length of an arbitrary B-splines.

The program splineLength.m calculates numerically the arc length of an arbitrary B-spline. Numerical integration uses "waypoints" for high precision.

Calculates Sound Power and Analyzes Source Directivity from Sound Pressure on spherical coordinates.

Creates Toeplitz-like matrices representing interpolation operations with edge conditions.

reconstruction using cubic B-splines with different possible boundary conditions. The screenshot above shows the output of this example, and illustrates how improved signal reconstruction is obtained using

Encrypt B-Spline Curves and Surfaces using chaotic systems

The code implements the B-Spline curve and surface encryption method proposed in the following work:Moysis, L., Lawnik, M., Antoniades, I. P., Kafetzis, I., Baptista, M. S., & Volos, C. (2023

Coefficients of the Cubics For Nonuniform Cubic Spline Interpolation

Coefficients of the Cubics For Nonuniform Cubic Spline InterpolationIncludes first or second derivative end conditions (so, as special cases, it includes natural and clamped cubic splines)If you want

Provides Pandora Toolbox module pan_fit for fitting parameters of Hodgkin-Huxley type ion channel and neuron model parameters

Interpolates intermediate images between a stack of 2D images.

globally (between all pairs of subsequent images) spline interpolating the registered displacement fields. Along the spline trajectory of each pixel the intensities are also spline interpolated.The method

This GUI visualizes the basis functions of spline spaces

This GUI visualizes the basis functions of spline spaces. Different bases can be chosen from the following: 1) B-Splines 2) Cardinal Splines

PSO and other codes

### B-spline based repetitive controller using iterative swarm learning for CACF VSI

Version 1.2.0.0

Rafal BarszczewskiWeights of B-spline controller are trained using PSO

https://www.mathworks.com/matlabcentral/fileexchange/47847-plug-in-direct-particle-swarm-repetitive-controller. The novelty is that B-spline based repetitive controller has weights trained using PSO.