Keypoints for a Projective Transformation

Start with a set of images:

In[1]:=

images=ResourceData["Example""Keypoints to Find Projective Transformation","ImageList"]

Out[1]=



,



Find the set of matching interest points in the two images using

:

In[2]:=

matches=ImageCorrespondingPoints[images〚2〛,images〚1〛,Method"ORB"];

Then compute the geometric transformation matrix:

In[3]:=

{err,mat}=FindGeometricTransform@@matches;mat

Out[3]=

TransformationFunction



Highlight the shapes of the two arcs in the first image:

In[4]:=

arcs={164,3},

...

,{948,5},

...

;

In[5]:=

HighlightImageimages1,Polygon[arcs],

...



Out[5]=

Using the estimated transformation matrix, find transformed arc regions in the second image:

In[6]:=

HighlightImageimages2,Polygon[mat/@arcs],

...



Out[6]=

Related Symbols