Comment by robotresearcher

19 days ago

The depths you are trying to estimate are to the other cars, people, turnings, obstacles, etc. Could be 100m away or more on the highway.

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robotresearcher

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cyanydeez  19 days ago

ok, but the point trying to be made is based on human's depth perception, but a car's basic limitation is the width of the vehicle, so there's missing information if you're trying to figure out if a car can use cameras to do what human eyes/brains do.

  • acomjean  19 days ago

    Humans are very good at processing the images that come into our brain. Each eye has a “blind spot” but we don’t notice. Our eyes adjust color (fluorescent lights are weird) and the amount of light coming in. When we look through a screen door or rain and just ignore it, or if you look outside a moving vehicle to the side you can ignore the foreground.

    If you increase the distance of stereo cameras you probably can increase depth perception.

    But a lidar or radar sensor is just sensing distance.

    • robotresearcher  19 days ago

      Radar has a cool property that it can sense the relative velocity of objects along the beam axis too, from Doppler frequency shifting. It’s one sense that cars have that humans don’t.

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  • robotresearcher  19 days ago

    The width of your own vehicle is (pretty much) a constant, and trivial to know. Ford F150 is ~79.9 inches. Done. No sensors needed.

    All the shit out there in the world is another story.