Global shutter cameras for oak modules

msharad19

Hi, we're using oak D Lite cameras. But the default camera has a rolling shutter, which causes motion blur for moving objects. Is there a possibility of swapping the camera in the module with global shutter ones? If yes, can you recommend any options please? And do we just physically swap them out and run (or do we need any fw/sw changes)?

I see one option from Arducam here, but I'm not sure if this process will work

Additionally, are there oak d cameras with global shutter cameras by default?

Thanks!
Sharad

erik

Hi msharad19 ,
Color cam on OAK-D-Lite (IMX214) is rolling shutter, but stereo cams are global shutter. For color global shutter, either AR0234 (that you linked) or OV9782 would work. The IMX214 is connected via short FPC connector (see below), so any other sensor that has the same connector would work (supported by deptahi, see docs here). Note that AR0234 is much larger, and wouldn't fit onto the PCB/into enclosure, but should work. Procedure to change CCM here. If you want something easier, I would just suggest using any Series 2 cam with Wide FOV and OV9782 already onboard. THoughts?
Thanks, Erik

msharad19

Hi Erik,
Thanks for your reply.
Can we currently buy series 2 camera with wide FOV OV9782 off the shelf in Germany? I only see series 2 with IMX378 here

Thanks,
Sharad

msharad19

I got one
https://shop.luxonis.com/collections/usb/products/oak-d-w?variant=43905772552415
I don't see it in European online shops though 🙁
Thanks,
Eric

erik

Hi msharad19 ,
It's quite a new addition to our variants, and as such we don't have large storage and I think we haven't yet got these to our distributors (best to check though). Maybe best to ask support@Luxonis.com for ETA on availability🙂
Thanks, Erik

AidanMontag

Hi everyone! I just wanted to let you know that switching from a rolling shutter to a mechanical shutter won't decrease motion blur. Motion blur is an effect of the shutter speed (how long the sensor collects light), and acts the same on both rolling and global shutters. If you are able to adjust the camera settings on your oak device, you could manually set your shutter speed to a faster one the the automatic (I would start at 1/96 of a second) and then correct exposure by increasing your iso. This will make your image grainier while in darker lighting conditions, but should lower motion blur greatly! Hope this helps!

erik

Hi AidanMontag ,
You are right, and for rolling shutter this motion blur will get weirder, as lower parts of the image will be shifted, so in some cases this will be worse: