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Camera lag

Discussion in 'Phantom 2 Vision Discussion' started by Rangio, Dec 24, 2013.

  1. Rangio

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    Hi Guys

    Just bench testing my new Vision before first flight (and after following the forum for a few months). The only problem I have encountered so far is that the camera view on the iPhone is very slow to update - several seconds of lag. I am using a 3 year old iPhone 4, and my Vision appears to be one of the earlier ones because the USB is inside the transmitter. I can't update the camera firmware yet as I don't have a microSD adapter.

    Has anyone else seen or heard of a similar issue?
     
  2. Rangio

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    Experimenting, a new iPhone 5S seems to be much faster. Even restoring the iPhone 4 to original settings and wiping everything didn't improve it's performance. An original iPad Mini works fine too. Must be the processor in the iPhone 4 is too slow - I read somewhere that there's been a 32x increase in processor speed from the 4 to the 5S.
     
  3. iDrone

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    Location:
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    4S or later is good. You can also lower the Preview res & frame rate in the Vision app to help smooth it out.

    iDrone
     
  4. Richhealth

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    I used as iphone 4 for a while without issue, once I reduced the preview quality to the absolute minimum in the app settings. It should work for you, though its not one of the recommended devices.

    Rich
     
  5. garygid

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    Location:
    Laguna Hills, Orange county, CA 92653
    Trying to use the Kyocera eVent android smartphone as a small tablet,
    it seems like there was not enough processing power to decode the
    640x480 at 15 fps, and major picture defects and freezing were overly
    obvious and abundant.

    When I reduced the preview format to 320x240 at 15 fps, it seemed
    to work fine, but I have not yet tried it sufficiently.

    At some point the phone froze, and had to be rebooted.
    All this in Airplane mode, to minimize other RF energies
    in the phone.
     
  6. garygid

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    Location:
    Laguna Hills, Orange county, CA 92653
    The camera video lag with the Kyocera eVent was less than
    about 0.2 seconds, I estimate.