Software Listing: B Spline

  • Arkan
  • License: Freeware
  • Price: 0.00
  • Rating

Arkan is designed to convert border of a raster mask (selection of an object in scene) or any closed polyline into B-spline (piecewise cubic Bezier curve) representation spread widely in vector graphics packages. Arkan chooses the best position both for node points (junctions of adjacent Bezier polynomial pieces) and for control points, which don’t lie on the curve but only affects its shape. Minimum description length approach powers the program. In addition to its unique outlining capabilities Arkan features nice and friendly user interface (see screenshot). It’s typical task in computer graphics to describe contour of raster masks in terms of a set of cubic Bezier curves.

  • Publisher: Pixmart LLC
  • Date: 16-11-2004
  • Size: 1457 KB
  • Platform: WinNT 4.x, Windows2000, WinXP, Windows2003

Convert B-Spline curves contained in DXF files into arcs. So it will be possible to further process the dxf files and use it with your CNC machine. The program reads existing DXF files and writes the result into a new DXF file. You can specify the maximum deviation of the arc polyline curve from the original B-Spline curve. So you can decide if you want to create more arcs and get an more exact result or if you want less arcs and a curve which does not fit perfectly. For example to reduce the working time for your CNC machine. You can also write both, the splines and the arcs to the DXF file so that you can compare both curves.

  • Platform: WinXP, WinVista, WinVista x64, Win7 x32, Win7 x64, Win2000

A Java implementation of a cubic B-spline curve smoothing function.Allows an arbitary number of points with a variable number of dimensions to have a cubic B-spline curve "fitted". Useful in finance for analysing bond or swap yield and discount curves.
Adamantine Analytics Cubic B-Spline License - GNU General Public License (GPL).

  • Platform: Windows

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 object gopt: optimal value This file is based on the following paper: M. Nagahara and Y. Yamamoto, H-infinity optimal approxmation for causal spline interpolation, Signal Processing, Vol. 91, No. 2, pp. 176-184, 2011..

  • Platform: Scripts, Matlab

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 applications, including model fitting where some components of the model are defined in terms of splines, such as generalized additive models, a faster solution is desirable. The fastBSpline class implements a lightweight set of B-spline features, including evaluation, differentiation, and parameter fitting. The hard work is done by C code, resulting in up to 10x acceleration for evaluating splines and up to 50x acceleration when evaluating of spline derivatives.

  • Platform: Scripts, Matlab

B-splines is a natural signal representation for continous signals, where many continous-domain operations can be carried out exactly once the B-spline approximation has been done. The B-spline estimation procedure in this toolbox using allpole filters is based on the classic papers by M. Unser and others [1,2,3], it allows very fast estimation of B-spline coefficients when the sampling grid is uniform. Evaluation/interpolation is also a linear filter operation. The toolbox has two layers; a set of functions for the fundamental operations on polynomial B-splines, and an object-oriented wrapper which keeps track of the properties of a spline signal and overload common operators.

  • Platform: Scripts, Matlab

The package comprises of a graphical utility to place uniform B-spline control points and see how the B-spline is redrawn as control points or control point weights are adjusted, and functions to 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 with axes in which to choose control points of a uniform B-spline. As points are placed in the axes, the B-spline of specified order is drawn progressively. The user may terminate adding control points by pressing ENTER or ESC, or may place the last control point with a right mouse button click.

  • Platform: Scripts, Matlab
  • JBSSE
  • License: Freeware
  • Price: 0.00
  • Rating

JBSSE stands for "Java 3D Cubic B-Spline Surface Editor." The goal of this project is to provide a control mesh editor for cubic B-spline surfaces, allowing the user to view and export the generated surface in various formats (3DS, Java3D native, POV).

  • Platform: Windows; Mac; Linux

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 difference of squares along with smoothness and feature point designations as error criteria to minimize. Some code has been taken from CERR. A GUI (FFD4D) is included for handling all the steps from extraction of data and contours to registration and deformation of the image. The GUI requires contours be loaded of the organs being deformed in order to register them. If contours are not available a very rough automated segmentation routine is provided to outline skin and bone structures.

  • Platform: Scripts, Matlab

Video Segmentation using B-Spline
SegmentSport License - Academic Free License (AFL); MIT License.

  • Platform: Windows
  • pycurve
  • License: Freeware
  • Price: 0.00
  • Rating

Python implementation of LaGrange, Bezier, and B-spline curves. The algorithms use their respective interpolation/basis functions, so are capable of producing curves of any order. The B-splines use Cox-De Boor and support knot insertion. 2-d only..

  • Platform: Win All

einspline is a C library for the creation and evaluation of interpolating cubic basis splines (B-splines) in 1D, 2D, and 3D. It supports both uniform and nonuniform meshes, single and double precision, and real and complex data..

  • Platform: BSD; Linux

FindGraph is a comprehensive graphing, curve fitting, and digitizing tool. FindGraph offers 12 generic fits, including linear regression, logistic functions, fourier approximation, rationals, neural networks, B-splines and parametric curves least squares approximations, plus a library of over 300 industry-specific 2D formulas. FindGraph uses the Levenberg - Marquardt non-linear algorithm and the Simplex algorithm to fit data. A built-in Wizard helps to apply different curve fits to discover the model that best describes the data. Peak fitting features are included. There is a feature that applies Singular Spectrum Analysis (SSA) to reconstruct and to forecast data series and to extract cyclic sygnals.

  • Publisher: UNIPHIZ Lab
  • Date: 10-05-2013
  • Size: 4433 KB
  • Platform: Win98, WinME, WinNT 4.x, WinXP, Windows2000, Windows2003, Windows Vista

Corel Corporation introduced CorelDRAW Graphics Suite X5, the newest edition of the company's award-winning package of professional graphics applications. Though Adobe dominates the graphic design industry, CorelDraw has always been the first vector drawing program that springs to most PC users minds. Graphics Suite X5 combines CorelDraw with numerous extras to offer a wide ranging set of capabilities. These include the Photo-Paint image editor, theSwish miniMax2 animation tool, and the new Corel Connect media browser. The emphasis here is on quantity: a full installation requires over 6GB of disk space and will take up a whole lunch break.

  • Platform: Win7 x32, Win7 x64, WinVista, WinXP

Feature wise, Realsoft 3D is a full featured modelling, rendering, animation and simulation package. It introduces global illumination, multi-wavelength ray-traycing for accurate spectral caustics and other optical effects, sub-surface scattering for realistic human skin shading. It+s surface modeller represents the forefront of free-form modelling. On the animation front a full range of tools - from easy keyframing to event driven nonlinear animation- is supported. But you get even more :quick shadow map based on lighting, 64 bit ray-tracing technology produces superior image quality, extremely powerful Visual Shading Language allows unique shading and material effects, network distribution creates unlimited render farms over the internet.

  • Platform: Win95, Win98, WinME, WinNT 4.x, WinXP, Windows2000; Linux

We strongly recommend you this popular desktop wallpaper changer! For details please visit producer's web site now: www.wallpapers.bionixwallpaper.com Features: this wallpaper manager has a "don't disturb user" mode (through "automatic shut down" option): images will be changed automatically when Windows starts, then the program will close without user intervention. High quality resamplers: The "resampler" may not ring a bell for some users, but believe us, when you are working with images, this is the first thing you should look after! A resampler is a special algorithm used to resize an image.

  • Platform: Win2000, Win7 x32, Win7 x64, Win98, WinMobile, WinOther, WinServer, WinVista, WinVista x64, WinXP, Other

A powerful software for analysis of different kinds of microscopic images. Mainly oriented for the scanning probe microscopy 3D images processing and analysis, but can be also used for optical and electron microscopy images. Between its features are powerful 3D representation, with ability to record movies, clipboard integration, USB cameras support, Fourier analysis, pattern recognition functions. You will be able to easily measure spatial dimensions of any object, calculate the roughness parameters or build histograms. A special attention is payed to the processing of the force curves - calculation of separation curves, WLC model approximation, calculation of statistics for multiple curves.

  • Platform: Windows

Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License. Blender offers a complete range of tools to thoroughly develop 3D animations and design. Its revolutionary, non-overlapping and non-blocking UI delivers unsurpassed workflow. The powerful built-in database system allows instances, scene management, and dynamic linking multiple project files. Anti-aliased fonts feature international translation support. The modeling aspects of the program are various. A range of 3D object types including polygon meshes, NURBS surfaces, bezier and B-spline curves, metaballs, vector fonts (TrueType, PostScript, OpenType) are available.

  • Publisher: Blender
  • Date: 16-05-2012
  • Size: 27648 KB
  • Platform: Windows

X-Blender is a 3D graphics application released as free software under the GNU General Public License. It can be used for modeling, UV unwrapping, texturing, rigging, water simulations, skinning, animating, rendering, particle and other simulations, non-linear editing, compositing, and creating interactive 3D applications, including games. Modeling · A range of 3D object types including polygon meshes, NURBS surfaces, bezier and B-spline curves, metaballs, vector fonts (TrueType, PostScript, OpenType) · 'Smooth proxy' style catmull-clark subdivision surfaces · Boolean mesh functions · Editing functions such as extrude, bevel, cut, spin, screw, warp, subdivide, noise, smooth Soft selection editing tools for organic modeling · Python scripting access for custom tools Animation · Armature (skeleton) deformation with...

  • Publisher: winPenPack
  • Date: 20-08-2012
  • Size: 31130 KB
  • Platform: Windows
  • BRL-CAD
  • License: Freeware
  • Price: 0.00
  • Rating

The BRL-CAD package is a powerful Constructive Solid Geometry (CSG) solid modeling system BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation, with more than 20 years of active development. BRL-CAD includes an interactive geometry editor, parallel ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, image-processing and signal-processing tools.

  • Platform: Windows

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