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ToF Sensor Model (w.r.t. unmeasured points)

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  • Rowan DempsterR Offline
    Rowan DempsterR Offline
    Rowan Dempster
    Regular
    wrote on last edited by
    #1

    When the ToF is looking at empty space, it seems to return that "no measurement" information via a (0,0,0) point value. But when it is looking at occupied space some of the points returned are still "no measurement" points (0,0,0). Is there any way of separating between returns that just never hit something, or points that hit something but the sensor is not confident enough to report a location for?

    For the purposes of occupancy mapping it's very useful to know that subtlety of "unknown yes or no the ray hit something" vs. "known empty space along this ray".

    ModeratorM 1 Reply Last reply
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    • Rowan DempsterR Rowan Dempster

      When the ToF is looking at empty space, it seems to return that "no measurement" information via a (0,0,0) point value. But when it is looking at occupied space some of the points returned are still "no measurement" points (0,0,0). Is there any way of separating between returns that just never hit something, or points that hit something but the sensor is not confident enough to report a location for?

      For the purposes of occupancy mapping it's very useful to know that subtlety of "unknown yes or no the ray hit something" vs. "known empty space along this ray".

      ModeratorM Offline
      ModeratorM Offline
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      ModalAI Team
      wrote on last edited by
      #2

      @Rowan-Dempster I think it is safest to just not use data that reads 0,0,0 as the sensor cannot measure that close anyways

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