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Can lidar say what colour is traffic light?
by dzhiurgis 10mo ago
Can lidar say what colour is traffic light?
- pyrolistical 10mo agoIt’s not either lifar or regular cameras. Use both and combine the information to exceed the humans
- dzhiurgis 10mo agoWhat proportion is camera data and what is LIDAR? Must be solved problem and something you should buy already? Right?
- jenebiiit 10mo ago[dead]
- comfysocks 10mo agoMost practical navigation systems employ some form of sensor fusion. It’s more the norm than not. I’m sure even Tesla’s FSD does too for fusing vision, inertial sensors, wheel speed, multiple etc.
- Gibbon1 10mo agoSomething I've seen noises about is time of flight systems for traffic. I think the idea is you can put those systems on traffic lights, cars, bicycles, and pedestrians and then cars can know where those things are.
- SapporoChris 10mo agoI believe traffic lights currently use three bulbs, red, yellow and green. Even without color a computer system can easily determine when each light is lit. If there are single bulbs displaying red, green and yellow please give clear examples.
- bluGill 10mo agoFlashing lights over rural intersections often do that. There is only one color there (yellow or red), but position is not a signal
- dzhiurgis 10mo agoHow about turn signal vs brake lights?
- JumpCrisscross 10mo ago> How about turn signal vs brake lights? Potentially as extraneous as range to a surface that a camera can’t tell apart from background. More to the point, everyone but Tesla is doing cameras plus Lidar. It’s increasingly looking like the correct bet.
- dzhiurgis 10mo ago> doing cameras plus Lidar At what proportion? Is it mostly lidar or mostly cameras? Or 50/50? > Potentially as extraneous as range to a surface that a camera can’t tell apart from background. I guess yeah for backside of the car you'd probably better off measuring actual actions. How about when you come 4 way stop. LIDAR is useless as it wouldn't recognize anyones turn signals.
- lkois 10mo agoWhat do you mean by proportion? They are different data sources, and their usage is determined by system design. eg A driving decision system needs to know object distances AND traffic light colours. It doesn't particularly need to know the source of either. You could have a camera-only system that accurately determines colour and fuzzy-determines distance. Or you could have a LIDAR-only system that accurately determines distance and fuzzy-determines colour. Or you use both, get accurate LIDAR-distance and accurate camera-colour and skip all the fuzzy-determination steps. Or keep the fuzzy stuff and build a layer of measurement-agreement for redundancy. So then the question becomes, what's your proportion when deciding whether to stop at a traffic light? Is it mostly light colour or mostly distance to other objects? Or 50/50? I'd say it's 100/100.