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Thread: Feedback from forum about hit and run

  1. #1

    Default Feedback from forum about hit and run

    https://jalopnik.com/new-orleans-pol...-se-1820115744



    Looks to be output from a projector, color seems to indicate HID. I think its a 2007-2012 Lexus ES350 but the chrome window trim seems to be only at the bottom.

  2. #2

    Default Re: Feedback from forum about hit and run

    That left headlamp is aimed WAY too low. Maybe that's part of why the driver hit the pedestrian.

  3. #3

    Default Re: Feedback from forum about hit and run

    The video seems to show HID lighting as well as use of the high beam. Any vehicles that you know of that came with an HID projector and high beam HID as well?
    Last edited by JMSinMD; 11-06-2017 at 08:08 PM.

  4. #4

    Default Re: Feedback from forum about hit and run

    Quote Originally Posted by JMSinMD View Post
    The video seems to show HID lighting
    Maybe and maybe not. It is very difficult to tell halogen from HID or LED on video. Always has been. Maybe it's changing now with HD video, but that security-cam footage isn't anything like HD or we wouldn't be having this discussion. Take a look at movies from the '70s and '80s and you'll see even sealed beams have that blue-white look.

    as well as use of the high beam.
    It does not look to me like the high beams are on. The dynamic range of video, especially low-definition video, is a whole lot less than that of the human eye; that's why the whole headlamp lens appears to be lit up.

    Any vehicles that you know of that came with an HID projector and high beam HID as well?
    If you mean separate HID low and HID high beam, VW Phaeton, and that's about the end of the list.

  5. #5

    Default Re: Feedback from forum about hit and run

    Based on the back shot in the attached smaller pics looks like either a chrysler or cadillac....(wild guess though)

  6. #6

    Default Re: Feedback from forum about hit and run

    In this case you can tell whether it is halogen or not as you can guess the CCT in relation to the other light in the scene. It is higher CCT and is low enough in level to know it is not saturating the camera.

    As the motion of the vehicle is fixed, with the right image processing you can deblur the vehicle in the picture quite a bit not to mention get a fairly good speed estimate.

    There is also enough information in the picture that with the pole spacing and camera lens data you could calculate the wheel base with fairly high accuracy. Probably vehicle length too.
    Last edited by ssanasisredna; 11-18-2017 at 07:46 AM.

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