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Buggy speed sign detection in AP

Discussion in 'Tesla' started by tescroft, Aug 16, 2017.

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  1. tescroft

    tescroft In Musk, we trust.

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    #1 tescroft, Aug 16, 2017
    Last edited: Aug 16, 2017
    There are several occations where Autopilot speed assist does not recognize speed signs correctly. There is an example that is reproducable, every time a pass this area, the speed sign on both sides of the road are not detected and not applied to the dashboard. The error rate of Tesla speed assist is to high to rely on IMO. This way, the feature is almost useless.

    FullSizeRender.jpg

    This is AP1 with mobile eye. Since this did not improve with the latest software updates, I wonder if this is a limitation of the mobile eye chip and cannot be improved with software updates. I own a BMW i3 as well, with the same mobile eye chip, and it does not regognize this signs as well.

    What are your experiences with AP speed sign regognition?
     
    • Informative x 1
  2. ZERO260

    ZERO260 Member

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    Similar problem in Ap1
     
  3. AnxietyRanger

    AnxietyRanger Well-Known Member

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    Does it happen on both lanes?

    One thing that is a problem with AP1 is the small FoV of the sole camera. For example in your picture the sign seems to be further away from the lane due to the blocking patterns on the road and the bend that maybe the camera just doesn't see it (close enough) physically?

    Do you always drive on the left when this issue happens, or does it happen driving on the right as well?

    Not ruling out MobilEye either, maybe it is the chip. Just pondering the camera limits of many current implementations. Maybe it could be, for example, the chip being confused about the additional sign underneath and dismissing the speed limit for that reason or something.

    AP2 in theory could see wider, but of course does not use its wide camera(s) yet, nor does it have speed sign recognition at all.
     
  4. zmarty

    zmarty Member

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    Can AP1 detect speed signs at all? At least in AP2 this is all based on speed limits stored in the maps, not detected visually.
     
  5. dprisoner

    dprisoner Member

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    I have AP1, and part of my commute is getting on to a 40mph road, but it doesn't adjust the icon until I've passed the first limit sign, so I assume it is reading the sign and not relying on GPS data.
     
  6. tescroft

    tescroft In Musk, we trust.

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    Yes, it does happen on both lanes. Also the sign on the right is not recognized if I am driving on the right lane. So this seems not to have anything to do with the blocking patterns.
     
    • Informative x 1
  7. AnxietyRanger

    AnxietyRanger Well-Known Member

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    Thank you @tescroft, interesting example.
     

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