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0 votes
0 answers
27 views

Image analysis with MATLAB: transforming an image taken at an angle back to direct view

I have a series of photographs taken at an angle, like this: What I would like to do is "straighten" these photographs into direct view: The above examples are taken from this Photoshop ...
Jonathan Huang's user avatar
0 votes
1 answer
287 views

Measuring objects in a photo taken by calibrated cameras, knowing the size of a reference object in the photo

I am writing a program that captures real time images from a scene by two calibrated cameras (so the internal parameters of the cameras are known to us). Using two view geometry, I can find the ...
stressed out's user avatar
2 votes
1 answer
458 views

How to arrange input as an object for Extrinsics() function of matlab?

I am trying to use extrinsics function of matlab to calculate the translation vector. As a requirement i want to give the input camera parameters. i.e. Camera matrix, distortion matrix. But when i ...
khan's user avatar
  • 531
3 votes
3 answers
3k views

Error in calculating perspective transform for opencv in Matlab

I am trying to recode feature matching and homography using mexopencv .Mexopencv ports OpenCV vision toolbox into Matlab . My code in Matlab using OpenCV toolbox: function hello close all;clear ...
motiur's user avatar
  • 1,670
0 votes
1 answer
612 views

expected point is not right in epipolar geometry

I have 2 cameras (camera 2 is translating respect camera 1) with their projection matrix P1 and P2. They took an image, I1 (camera 1) and I2 (camera 2) 512x512. P1 = -510.0686 -12.9401 -259.3765 -...
Roberto Iacono's user avatar
5 votes
2 answers
2k views

Different fundamental matrix from the same projection matrices

I use two projection matrices P1 and P2 (for example I'm using dinosaur dataset) and I need to compute the fundamental matrix F. So I use two Matlab functions: Peter Kovesi's function: www.csse.uwa....
Roberto Iacono's user avatar