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updated 13 days ago

Geodetic Transformations Toolbox by Peter Wasmeier

Set of tools for transformation used in geodesy, especially when using GPS or mapping (ellipsoidal coordinat..., cartesian coordinates, transformation)

CART=ell2cart(ELL,ellips,FileOut)

ELL2=molodenskytrafo(ELL1,p,ellips,dir,FileOut)

ELL=cart2ell(CART,ellips,FileOut)

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updated 22 days ago

blob by Uranium

blob (determinant of hessia..., blob, affine)

I1=gauss2(theta,a,b,winsz,x0,y0)

I1=gauss21(t,O,W,c,d)

[I1]=gauss3(t,O,W,c,d)

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updated 2 years ago

Perspective Control/ Correction by Michael Chan

The objective is to give a simple demonstration on perspective control using 4 corners of a plane. (image processing, perspective, control)

Get4Points( corner_coordinates )

fast_corner_detect_9(im, threshold)

sortCoordinatesAccordToX( coordinates )

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updated 2 years ago

Affine optic flow by David Young

Estimates the parameters of an affine (first-order) optic flow model from two images. (optic flow, optical flow, affine)

Affine Optic Flow Demonstration

affine_flowdisplay(flow, im, step, col)

affine_flowedgedisplay(flow, im1, im2)

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updated almost 3 years ago

3D Rotation about Shifted Axis by Matt J

Computes/applies rotation about arbitrary 3D line. (rotation matrix, rotation, affine transform)

varargout=AxelRot(varargin)

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updated 3 years ago

B-spline Grid, Image and Point based Registration by Dirk-Jan Kroon

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

A=imresize3d(V,scale,tsize,ntype,npad)

Dlocal=jacobiandet_transform_2d_double(Ox,Oy,Isize,dx,dy)

E=strain(Ux,Uy,Uz)

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updated 3 years ago

Absolute Orientation - Horn's method by Matt J

Solves weighted absolute orientation problem using Horn's quaternion-based method. (absolute orientation, quaternion, registration)

[Bfit,report]=absorient(A,B,doScale)

[Bfit,report]=absorient(A,B,doScale)

[Bfit,report]=absorient(A,B,doScale)

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updated 3 years ago

OpenSURF (including Image Warp) by Dirk-Jan Kroon

SURF (Speeded Up Robust Features) image feature point detection / matching, as in SIFT (registration, surf, opensurf)

D=FastHessian_BuildDerivative(r,c,t,m,b)

Iout=affine_warp(Iin,M,mode)

PaintSURF(I, ipts)

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updated 4 years ago

Transform a 3d volume by using an affine transformation matrix by Martijn Steenwijk

This function transforms a volume by using an affine transformation matrix. (transformation, geometry, affine)

affine3d(old_im, M, range_x, range_y, range_z, method)

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updated 4 years ago

Lucas Kanade affine template tracking by Dirk-Jan Kroon

Lucas Kanade affine template tracking , also robust inverse in c-code. (lucas kanade, lucaskanade, affine)

[p,I_roi,T_error]=LucasKanadeAffine(I,p,I_template,Options)

[p,I_roi,T_error]=LucasKanadeInverseAffine(I,p,I_template...

TTdemo.m

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updated almost 5 years ago

Finite Iterative Closest Point by Dirk-Jan Kroon

Iterative Closest Point using finite difference optimization to register 3D point clouds affine. (affine, resize, translate)

Po=movepoints(M,P)

[Points_Moved,M]=ICP_finite(Points_Static, Points_Moving,...

fminlbfgs.m

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updated 5 years ago

Resampling volume or image with affine matrix by Jimmy Shen

Use affine matrix to convert 3D vol or 2D img to orthogonal one with corresponding affine matrix. (geometric transformat..., image registration, 3d)

affine(old_img, old_M, new_elem_size, verbose, bg, method)

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updated 6 years ago

Affine Transformation by Ibrahim El Rube'

This program facilitates the application of the affine transformation to a 2-D Image. (geometric transformat..., image registration, affine)

AffineTrnasformation(varargin)

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updated 6 years ago

Geodesic solver by Bilwaj Gaonkar

Program uses metric tensor as input and generates geodesic equations in 4 d space time as output (chemistry, physics, geodesic)

manifolds.m

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updated 7 years ago

DFM for alphabetic by andi yusuf

distribution frequency monoliteral for (statistics, probability, dfm)

cursor.m

database.m

dbtbx.m

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updated 7 years ago

Least-Squares optimal affine subspace by Ofek Shilon

Computes the affine subspace (eg, line, plane) that optimally fits the input data (approximation, interpolation, least)

lsqAffineSpace(V, SpaceDim,varargin)

lsqLine(V,varargin)

lsqPlane(V,varargin)

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updated 9 years ago

Scale by Giampiero Campa

Linear scaling. (simulink, linear, affine)

scale

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