#apertus IRC Channel Logs

morning folks!

thank you !

so what is going on there?

moinsen

hey FergusL

long time no see

hey guys, i ve been looking for a good battery charger and found this german guy ( http://www.akku-selekt.de/ ) who is adapting, tuning and selling a battery charger. he is providing tons of information in german about batteries and their charging habits. as he is a big fan of eneloop batteries, maybe one could get him involved into development, so the axiom could get shippid with some kind of batterypack, where the people could

derWalter: go crazy, make contact, motivate him to participate in development ...

i just took out the battery from my nikon d800 and compared it to 4 AA eneloops

4.8V is a little low, you want to get above 6V

8 of them in a case, you end up with a package around 110mm x 60mm x 17mm

sounds good, you can buy an x8 box from your electronic shop and simply attach it

yes, that was my idea

i also very much like the idea atomos realized with two packs attached at the same time, would be nice to be able to "stack" them, so you can attach em to each other. but if you need sooo much power you will end up with some external solution anyways i guess...

/s/evel /even

the come in all shapes and sizes, just search for battery holder xN (where N is the number of batteries)

i was thinking about something like this: http://www.ebay.com/itm/2x-8AA-Battery-Holder-Case-Sockets-Holding-8pcs-AA-2A-12V-R03-LR03-Box-plastic-/131271149055?pt=LH_DefaultDomain_0&hash=item1e905ec5ff

what's that for?

i can instantly read into topics i am interessted in

even if they offer it for free, all kind of things can happen, like sudden charges, termination of service, drastic feature changes, etc

yes, 2.5" SSDs are slightly larger than the planned AXIOM Beta

mSATA MO-300A and Half Slim MO-297 would work as well

Hey there. Sorry for the connection issues.

Quick question, do you already have a 3D lookup table implemented within the camera?

do you write 3D lookup tables for FPGAs?

ah, yeah, that would indeed be very helpful

VHDL

I don't have any xilinx experience so I'd have to look how much effort it takes to port to a zynq

is there a pdf available of your thesis? is the code already public? if so, what license?

I'm not quite done writing the thesis, but it will be entirely public once I'm done with my degree in a few weeks.

I can give you a preliminary PDF by tomorrow if you like. I just stumbled over your Projekt and wanted to ask if you are interested.

yeah, we wondered for some time as well, but there are actually several ways in the AXIOM Beta

yes, the sensor does raw bayer images at up to 300 FPS

Well, after a 3D LUT you would probably want to stick to a 3 Compotent color space. And 1,2 giga pixels per second at 30 bit per pixel or more is quite a lot.

so with a good debayer, we might end up with 4096x3072 pixels at up to (realistically) 150FPS

but on the other hand, if we can't get it to work with more than 600M pixel/s, that would still be enough for the typical 4K @ 30 FPS applications

or maybe just optimize the pipeline structures

as I said, we can start simple, we do not need to have every feature at the beginning

Thanks for now, I'll be back tomorrow.

@derWalter just read your calculation about the eneloops. Am I right that the batteries in serial have the sum of the voltages but the same capacity as one cell?

dakor1 is right about the eneloops, in series the voltage add up but capacity stay the same, in parallel capacity add up but voltage stay the same, 4x eneloops only have 9.6Wh

hahaha, yeah, right :D

thats allready a lot, the lowest when writing was about 1 watts by an intel msata ssd drive... average ~3watts, so 5 watts seems to be fair enough :)!! )

am i right that the whole system would use 10-12 watts while recording to an ssd?

back now ...

derWalter: it really depends on what the camera is doing, the typical minimum is about 2 Watt for the MicroZed, which can go up to roughly 12W max

the remaining electronics should stay below 1W