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template matching angle and scale invariant

asked 2013-10-01 07:07:30 -0500

grobian gravatar image

Hello,

I have another question concerning the image matching. It seems so to be that opencv does not support angle and scale invariant template matching?

Cheers, Gordon

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that's right. template matching is neither scale nor rotation invariant.

(that's why there's all those SURF/SIFT/ORB things)

what do you actually want to do ?

berak gravatar imageberak ( 2013-10-01 07:49:09 -0500 )edit

Hi,

I have old scripts (middle age) and I would like to find similar objects in the manuscripts. (This is a challenge due to the fact that also "identical" objects have small differences....

grobian gravatar imagegrobian ( 2013-10-02 02:29:10 -0500 )edit

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answered 2013-10-01 08:16:24 -0500

updated 2013-10-01 08:23:54 -0500

Take a look at Rotation, Scale, Translation-Invariant Template Matching

"We conducted several experiments to compare grayscale and color Ciratefis with SIFT, C-color-SIFT and EasyMatch algorithms in many different situations. The results attest that grayscale and color Ciratefis are more accurate than the compared algorithms and that color-Ciratefi outperforms grayscale Ciratefi most of the time. However, Ciratefi is slower than the other algorithms" (taken from Ciratefi: An RST-Invariant Template Matching with Extension to Color Images)

[rotation (R), scale (S) and translation (T)]

edit: i think that source code can be downloaded from here (i didn't try it)

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Thanks for answer! I will give it try.

grobian gravatar imagegrobian ( 2013-10-02 02:30:29 -0500 )edit

Hi grobian, Did you have any luck with this? Please let me know when you get a chance.

Samjakar gravatar imageSamjakar ( 2014-07-15 01:58:20 -0500 )edit
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Asked: 2013-10-01 07:07:30 -0500

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Last updated: Oct 01 '13