- What technology do you use ? How does it Work ?
This software uses a technology called "Photogrammetry". Photogrammetry is a relatively ancient science whose principals were defined by a Frenchman : The Colonel A. Laussedat (1819-1904) in 1854.
Photogrammetry uses the triangulation principle and allows relief to be defined from two flat images of an object taken from two different positions. It's what our brain does all the time in conjunction with our eyes' retinas.
The principle is rather similar to that of the well-known GPS (Global Positioning System) which allows you to determine your position anywhere in the world to within a few meters.
The main difference (and difficulty) between Pixdim and GPS is that Pixdim doesn't know the 3D position of the cameras when the pictures are taken (whereas the exact position of the satellites is known with GPS ). This position must be calculated based on reference points on the photos before being able to make measurements.
Pixdim uses the most recently developed technology and mathematical algorithms.
Photogrammetry uses the triangulation principle and allows relief to be defined from two flat images of an object taken from two different positions. It's what our brain does all the time in conjunction with our eyes' retinas.
The principle is rather similar to that of the well-known GPS (Global Positioning System) which allows you to determine your position anywhere in the world to within a few meters.
The main difference (and difficulty) between Pixdim and GPS is that Pixdim doesn't know the 3D position of the cameras when the pictures are taken (whereas the exact position of the satellites is known with GPS ). This position must be calculated based on reference points on the photos before being able to make measurements.
Pixdim uses the most recently developed technology and mathematical algorithms.
Last Updated ( Tuesday, 24 March 2009 14:24 )