Monthly Archive: August 2012

Aug 12

Registering point clouds rigidly with scale using PCL [w/code]

Hello Sorry for the bombardment of posts, but I want to share some stuff I've been working on lately, so when I find time I just shoot the posts out. So this time I'll talk shortly about how to get an estimation of a rigid transformation between two clouds, that potentially are also of different …

Continue reading »

Share

Aug 09

Checking for co-planarity of 3D points in OpenCV [w/code]

Hiya Just catching up on some bloggin, and I wanna share a snippet of OpenCV code on how to check if your (badly) triangulated 3D points came up co-planar, and therefore a botch triangulation. It's a very simplistic method, only a few lines, and it also is part of my Structure from Motion Toy Library …

Continue reading »

Share

Aug 09

Useful ImageMagick and FFmpeg shortcuts for Win SendTo menu

shell-sendto

Hello Quickly sharing some useful scripts I've "developed" over the summer to cope with some image resizing / video ripping / transcoding, etc. Instead of using some specialized GUI software for transcoding I thought why not simply put useful options in the Windows file browser "Send To..." context menu. That way I can right-click the …

Continue reading »

Share

Aug 09

Decomposing the Essential matrix using Horn and Eigen [w/code]

Hi I've been working feverishly to straighten up the Structure from Motion Toy Library, and make it more robust. During my experiments with different methods I wanted to test out a different method for decomposing the Essential matrix to rotation R and translation t, other than that of Hartley and Zisserman using SVD. That's when …

Continue reading »

Share