Re: C3088 CMOS Imaging Sensor Questions

Assuming the PIC can keep up with normally 8.68MHz * 2 bytes transfers
during an image caputure, what else do you want it to do? Because it will be
almost permanently locked in that interupt routine doing NOTHING else.

I'd like to (a) take spatial (x & y), and temporal derivatives and (b)
incorporate thos derivatives into another equation.

Are you sure your PIC has enough RAM for your program variables and at least
a buffer 356 x 292 x 2 bytes EACH! Your PIC does have 256kB of RAM at least
I take it. Normally you need at least two buffers for image processing on
whole images so double that memory requirement to 0.5MB!

Can you please explain why you need two buffers when doing image
processing (I'm new at this)? My PIC has 3.94 KB of RAM and I probably
won't be processing the entire image...more like a 100 x 292 image.

You will NOT be able to process on the fly.

I didn't think I'd be able to get an algorithm working at 30 fps, but I
was hoping for at least 5. Do you still not think this is feasible?

Why a PIC?

I'm use to working with them...besides is the AVR that much different
than the PIC I'm working with (PIC18F8722)?

Work out what image capture size and update rate you need first.

Work out what algorithms you need to run and how much memory and time they
are likely to use, then when they need to complete by.

When you have worked all that out, THEN and ONLY THEN think about how
you are going to capture it, into what memory, THEN see what is the best
micro match to perform the function.

Great suggestions...thanks!

.

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