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I encountered the same issue in EMsoft-5.0.20200909.-Win64 in Win10 (ryzen 3960X 24 cores). Failed to use number of threads for parallel execution greater than 1. It generally take more than...

Thanks for your reply. Yes, a value of 1/3 make patterns brighter. But the inclination angle of the Kikuchi belt is more important. Experimental: ![image](https://user-images.githubusercontent.com/57243350/98135504-de969580-1efa-11eb-8315-b407a211c90b.png) Simulation: ![image](https://user-images.githubusercontent.com/57243350/98135625-fff78180-1efa-11eb-9a5f-c53a9d68ff8b.png)

I get pattern center, piexel size from Aztec (a software provided by Oxford). I calculate the pattern based on the equations according to https://doi.org/10.1007/s40192-019-00137-4. ![image](https://user-images.githubusercontent.com/57243350/98138575-3682cb80-1efe-11eb-940e-30d5cfca20b3.png)

I try tilt angle from 0 to 10, but always get poor performance. The tilt angle is not included in the Oxford software(Aztec), ctf and cpr file. Maybe I didn't...

Thanks for all reply. But I'm still confused about how to calculate pattern center. Pattern center after flipped: EMsoft_pcx = 1 - 0.48 - pu EMsoft_pcy = 1 - 0.54...

I tried several combinations of pcx, pcy and tilt angle. Finally, I use the following parameters. But it seems the parameters I selected are very different from those given in...

I mean the parameters I selected are very different from the parameters calculated by equations in reference https://doi.org/10.1007/s40192-019-00137-4.

Thanks for your kind attention. I also think the pattern centers provided by Aztec are not accurate. Now I use the pattern centers optimized by Genetic algorithm that has been...

Yes, it is right the Oxford defines its pattern center in relation to the image width. So I think the right way to calculate the pattern center is: y* =...