Rank: 83 based on 467 downloads (last 30 days) and 12 files submitted
photo

David Legland

E-mail
Company/University
INRA, France

Personal Profile:

Research engineer in Image processing.

Interested in image registration problems, estimation in discrete images, and polyhedral reconstruction.

web page:
http://www.pfl-cepia.inra.fr/ (in french)

Professional Interests:
image analysis, applied statistics, geometric computing, registration

 

Watch this Author's files

 

Files Posted by David View all
  • 1 - 5 of
  • 12
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
07 Dec 2011 Screenshot image ellipsoid 3D Inertia ellipsoid of a 3D grayscale image Author: David Legland ellipsoid, image processing, inertia, image analysis 11 0
09 Nov 2011 geometric measures in 2D/3D images Measure of geometric parameters in 2D or 3D images (surface, perimeter, Euler Number...) Author: David Legland image analysis, particle analysis, region properties, minkowski functionals, intrinsic volumes, geometric measures 35 2
13 Oct 2011 Screenshot geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland geometry, 3d, geometric computing, polygon, plane, polyhedron 146 17
  • 5.0
5.0 | 9 ratings
18 Aug 2011 Screenshot Slicer Slicer for exploring 3D images (grayscale, color or vectorial) by visualizing planar slices. Author: David Legland slice, viewer, 3d, image, stack, display 61 8
  • 5.0
5.0 | 2 ratings
06 Jun 2011 Screenshot geom2d Functions for geometric computations on planar shapes (points, lines, circles, polygons...) Author: David Legland geometry, computational geometr..., display, intersection, polygon, plan 132 35
  • 3.75
3.8 | 15 ratings
Comments and Ratings by David View all
  • 1 - 5 of
  • 23
Updated File Comments Rating
25 Nov 2011 geometric measures in 2D/3D images Measure of geometric parameters in 2D or 3D images (surface, perimeter, Euler Number...) Author: David Legland

Hi Sven,
I have a code for computing inertia ellipsoid of a set of points. I can adapt it easily to compute inertia ellipsoid of a binary image. I try to package it and submit it soon !
18 Aug 2011 Slicer Slicer for exploring 3D images (grayscale, color or vectorial) by visualizing planar slices. Author: David Legland

Hi Martijn,
your suggestion is good ! I have just submitted an updated version that fixes it. I'll also try to add support for data stored in header file in a future version.

Regards,
David
22 Jul 2011 Slicer Slicer for exploring 3D images (grayscale, color or vectorial) by visualizing planar slices. Author: David Legland

@OPS:
I think the problem depends on the image you tried to visualize.

Input should be either a M*N*P 3D grayscale image, or a M*N*3*P 3D color image.

hope this helps ?
20 Jul 2011 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland

@Qais,
you should install both geom2d and geom3d, typically in the same directory. Then you have to add directories to the path, using te 'addpath' function, or the 'File->Set Path' menu). You need to add at least the directories 'geom2d', 'geom3d', 'polygons2d', 'meshes3d', and eventually 'polynomialCurves2d'.

Some demos are provided with each archive, you can run them directly, and have an idea on the syntax.

I will also try to add some info on the matGeom web page (that gathers geom2d and geom3d), at http://matgeom.sourceforge.net .

Hope this helps
06 Jun 2011 geom2d Functions for geometric computations on planar shapes (points, lines, circles, polygons...) Author: David Legland

@Frank: yes, there was a stupid bug in this function. I have submitted an enhanced version that fixes it.
Regards, David
Comments and Ratings on David's Files View all
  • 1 - 5 of
  • 83
Updated File Comment by Comments Rating
08 Feb 2012 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland Eschle, Patrik

distanceLine3d works on infinite lines a+t*b. Sometimes (collision detection) the distance between line segments AB and CD is required. A distanceSegment3d would be useful.

The same is true for points (distancePointSegment ).

Or did I just miss it?
07 Feb 2012 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland Eschle, Patrik

Nicely written, good comments - thank you!
13 Dec 2011 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland Cao, Shuhao
01 Dec 2011 Feret diameter and oriented box Compute Feret diameters and oriented bounding box from label image Author: David Legland payne, ben

Works as desired! Good documentation too.
25 Nov 2011 geometric measures in 2D/3D images Measure of geometric parameters in 2D or 3D images (surface, perimeter, Euler Number...) Author: David Legland Legland, David

Hi Sven,
I have a code for computing inertia ellipsoid of a set of points. I can adapt it easily to compute inertia ellipsoid of a binary image. I try to package it and submit it soon !
Top Tags Applied by David
  • 1 - 5 of
  • 57
display, image processing, 3d, computational geometry, geometry
Files Tagged by David View all
  • 1 - 5 of
  • 13
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
07 Dec 2011 Screenshot image ellipsoid 3D Inertia ellipsoid of a 3D grayscale image Author: David Legland ellipsoid, image processing, inertia, image analysis 11 0
09 Nov 2011 geometric measures in 2D/3D images Measure of geometric parameters in 2D or 3D images (surface, perimeter, Euler Number...) Author: David Legland image analysis, particle analysis, region properties, minkowski functionals, intrinsic volumes, geometric measures 35 2
13 Oct 2011 Screenshot geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland geometry, 3d, geometric computing, polygon, plane, polyhedron 146 17
  • 5.0
5.0 | 9 ratings
18 Aug 2011 Screenshot Slicer Slicer for exploring 3D images (grayscale, color or vectorial) by visualizing planar slices. Author: David Legland slice, viewer, 3d, image, stack, display 61 8
  • 5.0
5.0 | 2 ratings
06 Jun 2011 Screenshot geom2d Functions for geometric computations on planar shapes (points, lines, circles, polygons...) Author: David Legland geometry, computational geometr..., display, intersection, polygon, plan 132 35
  • 3.75
3.8 | 15 ratings

Contact us at files@mathworks.com