Re: matching 3d points

reduce the problem to two dimensions, since it is only translation with
no scale or rotation (so you say). Since the z axis is assumed to be
the same direction, one can use simple correlation or other 2-d
approaches for point sets to get the x-y translation, and then search
across z. However, this will only work well if there trul;y is no
rotation or scaling involved
sachinlara@xxxxxxxxx wrote:
Hi All,
I'm facing a problem in matching two sets of points (three
dimensional) containing different number of elements. I have to find
the three translation parameters to be applied on the points of set "A"
such that it is close to the points of set "B". Is it possible to
obtain a direct closed form expression for the translation parameters
or do I have to find the Hausdorff distance for all the possible
translations and pick the optimum value? ( The points undergo only
translations, no rotations or scaling is involved ) Any suggestions or
references will be of great help.

Sachin

.

Relevant Pages

  • Re: Graphic transforms
    ... rotation is not about the desired rotation point. ... before rotating since scaling is on two different axis, ... one must apply scale, then rotate, then translation. ...
    (microsoft.public.dotnet.languages.vc)
  • Re: Properly combining a Rotation and Translation matrix? (linear algebra)
    ... Vector3 containing a translation I wish to perform, ... defining a rotation I wish to perform. ... rotates the object by the given rotation matrix, ... a single matrix multiplication unless you cheat on the notation by ...
    (sci.math)
  • Re: Cross Power Spectrum and Image Registration
    ... a separate test, for a rotated image, using phase correlation. ... When I apply both a rotation and a translation to the ... Can you please send me your code of transform and inverse transform of log polar code? ...
    (comp.soft-sys.matlab)
  • Register one image with another that has been both translated and rotated
    ... of this as the camera is moving over stationary objects). ... difference between the images will be BOTH a translation and rotation ... % Solve for phase correlation function. ...
    (comp.soft-sys.matlab)
  • Re: [c# .net 2005] problem with moving start of world
    ... > The problem i'm trying to solve is that when i rotate using yAngle, ... > bottom of my first cube. ... translation will produce a different result than translation * rotation - ...
    (microsoft.public.win32.programmer.directx.graphics)