Automatic camera calibration

Posted by srand on Stack Overflow See other posts from Stack Overflow or by srand
Published on 2010-03-23T17:17:04Z Indexed on 2010/03/23 17:43 UTC
Read the original article Hit count: 415

Filed under:

computer-vision

|

camera-calibration

|

calibration

|

math

From Wikipedia, camera resectioning is the process of finding the true parameters of the camera that produced a given photograph or video. Camera resectioning is also known as geometric camera calibration.

Currently I am using Camera Calibration Toolbox for Matlab for my camera calibration. The toolbox returns calibration parameters such as focal length, principle point, skew, and distortion. However, the issue with this method is that it requires an extra step in calibrating the camera by using a special calibration object like a checkerboard. Additionally, it only works for one focus of the camera.

How can I get the calibration parameters without manually calibrating? For example, how does Microsoft's Photosynth perform camera calibration on its images?

© Stack Overflow or respective owner

Related posts about computer-vision

Where should a beginner start with computer vision?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm an undergrad who finds computer vision to be fascinating. Where should somebody brand new to computer vision begin? >>> More
Embedded computer vision platforms

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi folks, I am planning to start a computer vision based project on a smart phone platform. I know iPhone ( http://niw.at/articles/2009/03/14/using-opencv-on-iphone/en ) and Andriod ( http://github.com/billmccord/OpenCV-Android ) have openCV support. I am interested in knowing how was your experience… >>> More
Computer Vision and AR libraries availabe for Android?!?!?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello I am starting out as an Android Developer, and I would like to know if there are any Computer vision libraries or Augmented Reality libraries for the Android SDK , as I am planning to use these libraries for a mobile app. I have read that if I download the NDK, I might be able to "import/use"… >>> More
How do people prove the correctness of Computer Vision methods?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'd like to pose a few abstract questions about computer vision research. I haven't quite been able to answer these questions by searching the web and reading papers. How does someone know whether a computer vision algorithm is correct? How do we define "correct" in the context of computer vision… >>> More
C++ vs Matlab vs Python as a main language for Computer Vision Research

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, Firstly, sorry for a somewhat long question but I think that many people are in the same situation as me and hopefully they can also gain some benefit from this. I'll be starting my PhD very soon which involves the fields of computer vision, pattern recognition and machine learning. Currently… >>> More

Related posts about camera-calibration

Automatic camera calibration

as seen on Stack Overflow - Search for 'Stack Overflow'
From Wikipedia, camera resectioning is the process of finding the true parameters of the camera that produced a given photograph or video. Camera resectioning is also known as geometric camera calibration. Currently I am using Camera Calibration Toolbox for Matlab for my camera calibration. The toolbox… >>> More
Why are there 3 conflicting OpenCV camera calibration formulas?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having a problem with OpenCV's various parameterization of coordinates used for camera calibration purposes. The problem is that three different sources of information on image distortion formulae apparently give three non-equivalent description of the parameters and equations involved: (1) In… >>> More
Low process priority problem

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have just set Ubuntu 12.04 64bit with Cinnamon desktop and 3.5.0-030500 kernel on my new laptop with IvyBridge i7. I decided to test its performance by running a single threaded CPU-hungry program that I often use for camera calibration. Unfortunately, it ended up running much slower than I have… >>> More
CodePlex Daily Summary for Tuesday, December 14, 2010

as seen on Code Plex - Search for 'Code Plex'
CodePlex Daily Summary for Tuesday, December 14, 2010Popular ReleasesFlickrNet API Library: 3.1.4000: Newest release. Now contains dedicated Windows Phone 7 DLL as well as all previous DLLs. Also contains Windows Help file documentation now as standard.mojoPortal: 2.3.5.8: see release notes… >>> More