Pattern matching with rotation

I need to perform pattern matching 360 degrees.

Basically, the template is 80 * 120, and the image is 640 * 480 shades of gray (8 bits).

For non-rotation, I use opencv cvmatchtemplate, which works very well.

I tried a rotating template from different angles and made a cvmatchtemplate, it worked, but it took too much time.

For normal pattern matching, 12 ms is required, and for 360 degrees less than 50 ms.

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