February 3rd, 2012, 04:47 AM  #1 
Newbie Joined: Feb 2012 Posts: 2 Thanks: 0  projection?
Hello , this is a problem from the real world. I have a camera , and I took a picture of a pen. I know exactly the pen's dimensions. I know the camera angle of view. I also know the exact x and y coordinates of the two ends and and the middle point of the pen's image in the photo. The coordinate system begins from the center of the image. How do I find the 3 dimensional coords of the real pen ? I suppose this is a linear algebra problem , we must find the coords of an object , knowing its perspective projection. 

Tags 
projection 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
The projection of the vector  Phatossi  Algebra  2  June 7th, 2012 08:47 AM 
Projection of a vector  aaaa202  Linear Algebra  1  November 29th, 2010 10:29 PM 
About projection  redox  Algebra  0  April 26th, 2009 11:37 AM 
Revenue Projection  gmcsmith@gmail.com  Applied Math  0  May 31st, 2007 11:27 AM 
The projection of the vector  Phatossi  Advanced Statistics  1  December 31st, 1969 04:00 PM 