Calculate reprojection error given correspondences from two images, R & T?
I have two images of the same scene (planar) but taken from different angles im1 & im2. I have 10 correspondences from both images (each correspondence has x & y location values).
I also have two matrices (Matlab):
Rotation (90 degrees about z):
R = [0 -1 0;
1 0 0;
0 0 1]
Translation
T = [0.7;
0.7;
0 ]
I need to calculate the reprojection error. What I am doing is:
- Say the first correspondence are points Point1 & Point2; where PointX belongs to image X.
- Then multiply by rotation matrix:
[Point2.x Point2.y 0] * R
The above will produce a new point Point_new.
- Now calculate the euclidean distance between the Point_new and Point1; it should be zero. Is this correct?
computer-vision reprojection-error
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I have two images of the same scene (planar) but taken from different angles im1 & im2. I have 10 correspondences from both images (each correspondence has x & y location values).
I also have two matrices (Matlab):
Rotation (90 degrees about z):
R = [0 -1 0;
1 0 0;
0 0 1]
Translation
T = [0.7;
0.7;
0 ]
I need to calculate the reprojection error. What I am doing is:
- Say the first correspondence are points Point1 & Point2; where PointX belongs to image X.
- Then multiply by rotation matrix:
[Point2.x Point2.y 0] * R
The above will produce a new point Point_new.
- Now calculate the euclidean distance between the Point_new and Point1; it should be zero. Is this correct?
computer-vision reprojection-error
add a comment |
I have two images of the same scene (planar) but taken from different angles im1 & im2. I have 10 correspondences from both images (each correspondence has x & y location values).
I also have two matrices (Matlab):
Rotation (90 degrees about z):
R = [0 -1 0;
1 0 0;
0 0 1]
Translation
T = [0.7;
0.7;
0 ]
I need to calculate the reprojection error. What I am doing is:
- Say the first correspondence are points Point1 & Point2; where PointX belongs to image X.
- Then multiply by rotation matrix:
[Point2.x Point2.y 0] * R
The above will produce a new point Point_new.
- Now calculate the euclidean distance between the Point_new and Point1; it should be zero. Is this correct?
computer-vision reprojection-error
I have two images of the same scene (planar) but taken from different angles im1 & im2. I have 10 correspondences from both images (each correspondence has x & y location values).
I also have two matrices (Matlab):
Rotation (90 degrees about z):
R = [0 -1 0;
1 0 0;
0 0 1]
Translation
T = [0.7;
0.7;
0 ]
I need to calculate the reprojection error. What I am doing is:
- Say the first correspondence are points Point1 & Point2; where PointX belongs to image X.
- Then multiply by rotation matrix:
[Point2.x Point2.y 0] * R
The above will produce a new point Point_new.
- Now calculate the euclidean distance between the Point_new and Point1; it should be zero. Is this correct?
computer-vision reprojection-error
computer-vision reprojection-error
asked Nov 25 '18 at 21:24
user6877269
add a comment |
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