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Asked by r poojitha
on 16 Nov 2012

i used sift algorithm to find features and for matching.now i want to find fundamental matrix how i can do it?

[Merged information from duplicate question]

i am interested to reconstruct 3d image from two stereo images.i dont know the camera parameters so i to find camera parameters i want to find fundamental matrix.to find this first i found the matching points now i want these matching points in the form of an 3xN array to find fundamental matrix.please help me out...

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Answer by Image Analyst
on 17 Nov 2012

I have no idea what you're asking. What is a fundamental matrix?

Answer by r poojitha
on 17 Nov 2012

i have two stereo images i want to reconstruct 3d image from these two stereo images.i want to do camera calibration for this.i took uncalibrated images so i want to obtain camera parameters for reconstruction.so i want to find fundamental matrix for this purpose..

Matt J
on 19 Nov 2012

It's a concept from computer vision

http://en.wikipedia.org/wiki/Fundamental_matrix_(computer_vision)

Answer by Matt J
on 19 Nov 2012

Edited by Matt J
on 19 Nov 2012

This might be applicable, though I haven't used it

http://www.mathworks.com/matlabcentral/fileexchange/27541-fundamental-matrix-computation

Answer by Image Analyst
on 19 Nov 2012

Have you seen the MATLAB Central submission highlighted in today's MATLAB Digest?

http://www.mathworks.com/matlabcentral/fileexchange/28522-stereo-matching?s_v1=48846382_1-1Q4UM3

" FAST MATLAB STEREO MATCHING ALGORITHM (SAD). This function performs the computationally expensive step of matching two rectified and undistorted stereo images. The output is ...."

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