At 09:05 PM 9/12/2011, opticsed wrote:
> I guess this question is for Michael. How useable is the PSI
> software especially for guys like me who can't program their VCR
> much less computer code? How do you input the numerous
> igrams? Digital cameras can take short movies, would these be useful?
> Have you thought about making it into a saleable product?
The software directly supports input from jpeg or tiff files. Any
still camera will output at least jpegs. There is lots of software
out there to convert between graphics formats. For example just
recently a group member posted a short avi video clip that both Dale
and I converted to jpegs, and those were easily batch processed.
As for making something "saleable," who would buy it?
When I started writing software to do PSI analysis I had the idea
that relatively sophisticated users would use it (or software they
wrote themselves for that matter) to do exploratory data analysis,
and if things panned out someone whose first name begins with D would
incorporate it into canned software for production testing. That
could still happen -- the phase computation (using least squares)
isn't that hard, and once you have a phase estimate what you do with
it is the same regardless of the algorithm that generated it.
>I have a Zygo-GH non phase shifting interferometer. The laser tube
>is non-stabilized and phases a lot until it reaches final temperature.
I've looked at batches of data from 3 people who've successfully done
PSI this way (one of them being me). I'd be happy to take a look at
yours if you don't mind sharing it.