Spatial

This toolbox was written by Fredrik Lingvall and Bogdan Piwakowski.The DREAM Toolbox is an open source MATLAB and Octave toolbox for simulating acoustic fields radiated from common ultrasonic transducer types and arbitrarily complicated ultrasonic transducers arrays.The toolbox includes a set of...

This script simulates the time evolution of a quantum mechanical wavepacket on the unit square with Dirichlet boundary conditions. Spatial discretization is with a Chebyshev-tau spectral method and time discretization is with a second order Crank-Nicholson method.

function W = euklid_W(ws,d,n)function W = euklid_invW(ws,d,n) PURPOSE: create an (inverse) euklidean distance spatial weight matrix (n x m 'moving-window' style matrix with distance to center cell weighted.) ------------------------------------------------------------------ USAGE: W =...


Platforms: Matlab

This collection of m-files will only get you through the very bear necessities (Look for the ...) of a single-run fMRI-analysis. Its actual aim is to illustrate the efficacy of spatial regularisation of the autocorrelation esimate in the framework of prewhitening the data to correct for serial...


Platforms: Matlab

The radially averaged power spectrum (RAPS) is the direction-independent mean spectrum, i.e. the average of all possible directional power spectra. The radially averaged power spectrum provides a convenient means to view and compare information contained in 2-D spectra in 1-D. This function...


Platforms: Matlab

I worked a lot with visual stimuli, and this function computes a measure for image activity, that is derived from the amount of edges in an image.It was proposed in ITU-T Document P.910 for single images (see pages 12, 15, 22-24 in that document). Please change the code to your own needs.Part of...


Platforms: Matlab

The power spectrum measures how much information is contained at each spatial frequency.Construction of the power spectrum takes three steps:1) Get the 2D (fftshifted) power spectrum2) Sample lines through sf=0 and rotated by 1degree intervals3) Average sampled lines to get resultThis function...


Platforms: Matlab

function [argout1 argout2 argout3 argout4]=sdindex2(data,threshold)%calculation of statistical dependence index%INPUTS%data: a two column matrix, each column is a variable, each row an observation%thresholds: reference thresholds for calculation of probability%OUTPUTS%statistical dependence...


Platforms: Matlab

Routine to send a BW BMP image (64 grey levels) to A spatial Ligh Modulator(SLM Holoeye model LC-R 1080 that counts 1200x1900 pixells ).This simple concept routine is tought to send a line onto the second screen as Holoeye SLM are controlled just as a standard second screen. For many "amplitude...


Platforms: Matlab

The header MatLab variable is generated when importing an ASCII-RASTER with the ImportAsciiRaster.m function.Here below an example:[Z h] = ImportAsciiRaster(NaN, 'h');figure;mapshow(Z, header2R(h),'DisplayType','surface');view(3), axis equal, axis off, camlight, lighting phongaxis on;...


Platforms: Matlab

IEC_Mann retrieves a 3D turbulent wind field for wind energy applications using the Mann model.Output: 4D matrix u = u[3,Nx,Ny,Nz] with* size(u,1) = turbulent components u-, v- and w-;* size(u,2) = number of points Nx in the longitudinal direction, x- ;* size(u,3) = number of points Ny in the...


Platforms: Matlab

This demo will show how to use some of the spatial transforms that is available. The peaks function is used as a basic object - but others can be used as well - such as the Matlab membrane. The peaks surface is rotating, with 2 spheres orbiting it as satellites. A third sphere is added to the...


Platforms: Matlab

The Mass Univariate ERP Toolbox is a freely available set of MATLAB functions for performing mass univariate analyses of event-related potentials (ERPs), a noninvasive measure of neural activity popular in cognitive neuroscience. A mass univariate analysis is the analysis of a massive number of...


Platforms: Matlab

The program can get spatial-time response of 2-D Continuous-Discrete systems by taking inverse 2-D Laplace-z transform [1]. The detailed algorithm is provided in Ref. [1].Copyright (C) Yang XIAO, BJTU, July 28, 2007, E-Mail: yxiao@bjtu.edu.cn.Based on recent results for 2-D continuous-discrete...


Platforms: Matlab

It can quickly process data and to visualize changes in fluorescence; or it can be used to complete multiple analyses of the data obtained in several experiments.Different spatial and temporal filters, as well as correction for bleaching can be applied. The outputs consist in fluorescence time...


Platforms: Matlab

The script adds a header at the top of the outputted file.It needs two inputs: the grid to be exported and the the header vector with the spatial information of the grid.It can save files as .txt or .asc.


Platforms: Matlab

phpPgGIS is a PHP Web system to manage PostgreSQL/PostGIS. It was developed under the phpPgAdmin and the MapServer. It's simple and makes easy to manage spatial data in PostGIS.


Platforms: PHP

phpPgGIS is a PHP Web system to manage PostgreSQL/PostGIS. It was developed under the phpPgAdmin and the MapServer. It's simple and makes easy to manage spatial data in PostGIS.


Platforms: PHP

Geobrowser is a module for browsing drupal's spatial information. It provides a google maps powered interactive viewer for location enabled nodes.An example implementation of the geobrowser module can be seen on http://mapping.uvic.caFeatures Include * Scalability to thousands of nodes * Custom...


Platforms: PHP

Provides simple functionality for positioning content and users, nodes can also be given an area. Positions are rendered using the geo microformat (http://microformats.org/wiki/geo) in full and teaser nodes and in views listings. Simple Geo can display all geotagged content on a page using Google...


Platforms: PHP