Change font size
It is currently Mon Dec 16, 2019 4:07 am


Post a new topicPost a reply Page 1 of 1   [ 2 posts ]
Author Message
PostPosted: Wed Sep 15, 2010 5:28 am 

Joined: Wed Sep 15, 2010 4:21 am
Posts: 1
hello,
well i am new to ipi software,
we plan to use the software as reference to compare our results to those retruned by IPI
we have already a successful work in marker less tracking
demo:
http://www.youtube.com/watch?v=J_kxK1hAYNs


our stereo calibration method is based on epipolar geometry ( we also use a LED in a dimly lit scene to do an easy matching) and to retreive the scene scaling factor we reference to a known object dimension in the scene,

our calibration method is strong and accurate enough, my question is simple,
is there is anyway to supply the external cameras calibration directly to ur software ( we dont need to do recalibration..), and if yes what is cooridnate system of the soft in order to do the appropriate conversion...
thx


Top
 Profile  
 
PostPosted: Fri Sep 17, 2010 3:07 am 
iPi Soft

Joined: Wed Apr 07, 2010 4:33 am
Posts: 379
Hello, you can put your calibration output to the following XML structure:

Code:
<?xml version="1.0" encoding="US-ASCII"?>
<Scene>
  <!--Positions are in meters-->
  <!--Angles are in degrees-->
  <Camera DiagonalFieldOfView="75.000000">
    <Translation value="2.417861 2.142903 1.364826" />
    <Rotation axis="1.000000 0.000000 0.000000" angle="-24.811390" />
    <Rotation axis="0.000000 1.000000 0.000000" angle="59.876560" />
    <Rotation axis="0.000000 0.000000 1.000000" angle="-1.680654" />
  </Camera>
  <Camera DiagonalFieldOfView="75.000000">
    <Translation value="0.606797 2.134588 4.207962" />
    <Rotation axis="1.000000 0.000000 0.000000" angle="-20.657410" />
    <Rotation axis="0.000000 1.000000 0.000000" angle="12.601750" />
    <Rotation axis="0.000000 0.000000 1.000000" angle="2.068917" />
  </Camera>
  <Camera DiagonalFieldOfView="75.000000">
    <Translation value="-3.125362 2.018730 0.595288" />
    <Rotation axis="1.000000 0.000000 0.000000" angle="-31.448260" />
    <Rotation axis="0.000000 1.000000 0.000000" angle="-73.953010" />
    <Rotation axis="0.000000 0.000000 1.000000" angle="10.718340" />
  </Camera>
</Scene>


Note 1: numbers here is only for example - you need to put your own.
Note 2: coordinate system is Y up based
Note 3: coordinates should be in meters, angles should be in degrees

Save this XML data as SomeFileName.scene.xml and load to the iPiStudio, using button "Load scene..." at "Scene" tab.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post a new topicPost a reply Page 1 of 1   [ 2 posts ]


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  


Powered by phpBB® Forum Software © phpBB Group
610nm Style by Daniel St. Jules of Gamexe.net