My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
March 17th, 2011, 03:22 AM   #1
Newbie
 
Joined: Mar 2011

Posts: 2
Thanks: 0

Augmented reality rotation & zoom

I'm working on augmented reality engine and I have a following problem.
I'm tracking a 2D rectangle tracking picture inside an other picture (webcam stream).
I have detected all four 2D corner coordinates for that tracking picture.

Now I need to calculate from the corner coordinates how the original tracker picture has rotated (x-,y-,z-rotations) and zoomed.
Bare in mind that the coordinates doesn't create right angle quadrilateral.
Any ideas how I can do it?
Thanks for any advice.
tyrskyzz is offline  
 
March 17th, 2011, 06:42 AM   #2
Senior Member
 
Joined: Apr 2007

Posts: 2,140
Thanks: 0

If this is a geometry problem, could you find a mathematics picture by Google?
johnny is offline  
March 17th, 2011, 11:30 PM   #3
Newbie
 
Joined: Mar 2011

Posts: 2
Thanks: 0

Re: Augmented reality rotation & zoom

Here is a picture that hopefully helps to understand



Here is rectangular picture rotated in x-,y- and z-axels. Now I need to calculate how much it has rotated.
tyrskyzz is offline  
March 18th, 2011, 01:10 AM   #4
Senior Member
 
Joined: Apr 2007

Posts: 2,140
Thanks: 0

Point A (x, y) ? (x + k, y - k) and for point B (x, y) ? (x + k, y) and for point C (x, y) ? (x, y) and for point D (x, y) ? (x, y - k), where k > 0.
johnny is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
augmented, reality, rotation, zoom



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
My Favorite Fractal Zoom. hotline Art 2 December 12th, 2015 01:57 AM
Assembler and others (give me a reality check lol) futuremathwiz Computer Science 2 December 26th, 2012 10:32 PM
Augmented Matrices CherryPi Algebra 4 July 29th, 2011 02:25 AM
From relative rotation to absolute rotation in 3D space Maegfaer Algebra 1 August 27th, 2010 09:01 PM
augmented matrix kabdul02 Linear Algebra 4 March 9th, 2009 10:23 PM





Copyright © 2019 My Math Forum. All rights reserved.