• OAK-1-MAX Trouble with HDR frames @15 fps

Hi. I am trying to capture images at 15 fps with HDR enabled using the OAK-1-MAX camera. Specifically, I am using the depthai-python/utilities/cam_test.py script as suggested in this page.

There are two issues:

  1. At 12 MP resolution, when I enable the options -misc hdr-exposure-ratio=4 hdr-local-tone-weight=75 , I can only capture a maximum of 3 fps.
  2. I also tried to reduce the resolution to 4k and 1080 with the above HDR options, and in those cases the fps went to 10 but the images were blank (screenshot below)

Any help getting me to to 15 fps HDR images is highly appreciated.

Thanks in advance

  • erik replied to this.
    8 days later

    Hi hemanthkorrapati ,
    We apologize for the delay. 15FPS HDR hasn't been supported yet on the IMX582, we will support it in the coming weeks. Please create an issue on depthai-core so you can be notified when support is added.
    Thanks, Erik

        2 years later

        Hello @erik

        currently what is the maximum frame rate with HDR?

        Thanks!

        Hi @AlessandroB , it's 10fps with RVC2 (at 12mp), but on RVC4 with IMX586 (almost the same as imx582) we got ~ 25fps (qbc hdr, as mentioned here, so 12mp).

        @erik , ok perfect. But if I use OAK-1-MAX I can get 10 fps (at 12 MP), right?

        Hi @erik, do you know which framerate I can achieve at 5 MP with HDR?

        Are the images taken in sequence or do you use some more "clever" ways to reduce the the overall acquisition time?

        @AlessandroB I believe HDR is only supported on 12mp due to our driver if you mean the IMX582 on RVC2.

        @Erik, it seems to me that IMX582 needs to acquire multiple images to create HDR, while IMX586 acquires all the images at the same time, so reducing blurring. Am I correct?

        If so, what is the overall acquisition time for IMX582 at 10 fps?

        Moreover, do you know the dynamic range for both sensors?