how i can find fundamental matrix

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r poojitha 2012-11-16

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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 1

Image Analyst 2012-11-17

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

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Answer 2

r poojitha 2012-11-17

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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..

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Walter Roberson 2012-11-19

What is a fundamental matrix?

Matt J 2012-11-19

It's a concept from computer vision

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

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Answer 3

Matt J 2012-11-19

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编辑：Matt J 2012-11-19

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

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

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Answer 4

Image Analyst 2012-11-19

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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 ...."