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estimateRigidTransform returns an empty matrix

Hey all,

I'm trying to use estimateRigidTransform in my program to find the best transformation matrix between two point sets using only translation, rotation & uniform scaling.

My two point sets are of type

MatOfPoint2f mPointSetA;
MatOfPoint2f mPointSetB;

and are both of size 20. (They do have 20 rows) For those who wonder, I get them like this:

LinkedList<Point> listOfPointsA;
// fill list with points...

mPointSetA.fromList(ListOfPointsA);

Now I'm calling:

Mat R = Video.estimateRigidTransform(mPointSetA, mPointSetB, false);

But the R that I get is of size 0x0! Could anybody tell me what I'm missing here?

Thanks in advance for any help! Isa

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updated 2014-03-19 10:32:36 -0500

berak gravatar image

estimateRigidTransform returns an empty matrix

Hey all,

I'm trying to use estimateRigidTransform in my program to find the best transformation matrix between two point sets using only translation, rotation & uniform scaling.

My two point sets are of type

MatOfPoint2f mPointSetA;
MatOfPoint2f mPointSetB;

and are both of size 20. (They do have 20 rows) For those who wonder, I get them like this:

LinkedList<Point> listOfPointsA;
// fill list with points...

mPointSetA.fromList(ListOfPointsA);

Now I'm calling:

Mat R = Video.estimateRigidTransform(mPointSetA, mPointSetB, false);

But the R that I get is of size 0x0! Could anybody tell me what I'm missing here?

Thanks in advance for any help! Isa