Can Self-Driving Cars Be Tricked? Let's Talk About Mark Rober's Video! - Tech Explanation

Can Self-Driving Cars Be Tricked? Let's Talk About Mark Rober's Video!

Have you seen Mark Rober's YouTube video, 'Can You Fool A Self Driving Car?' It's got people talking!

In his video, Mark tests a Tesla (which uses cameras) against a car with lidar. If you haven't seen it, basically, he tries to trick both cars to see how well they handle different situations.

In this post, we'll cover:

  1. What cameras and lidar are.
  2. What Mark's test showed.
  3. Why not all self-driving cars use lidar.

This is for anyone curious about self-driving cars, Tesla owners, or anyone who doesn't have a lot of technical know-how!

Cameras: Like Our Eyes!

We all know cameras! We use them to take photos and videos. In self-driving cars, computers look at the camera's pictures and videos to figure out what's around the car. Just like when we take photos in bright or dark places, cameras on cars can have trouble too. Sometimes, they need to adjust for light. And just like our own cameras, they can have trouble with focus. Even with smart AI, cameras on cars can still have the same problems we do.

Lidar: Laser Vision!



Lidar might be new to you. But if you have an iPhone Pro, you've seen it! Lidar uses lasers to see how far away things are. Imagine a laser beam spinning around, checking the distance of everything in all directions. That's lidar!

What Mark's Test Showed

Mark's test might have been a little scary! It looked like the Tesla's camera system struggled in some situations. But remember, cameras can have problems, just like ours. If we can't see something clearly, a car's camera probably can't either.

Does Lidar Always Work?

Nope! Lidar uses lasers, and lasers can bounce off or go through shiny or see-through things like mirrors and windows. Also, some materials can absorb the laser's light, making them hard to see. So, both cameras and lidar have their own strengths and weaknesses.

Why Don't All Cars Use Lidar?

Result from perplexity on price range

When Apple put lidar in iPhones, it was only in the expensive Pro models. Why? Because lidar is expensive! A good lidar system can cost more than a car. Cameras are much cheaper.

Also, for robots inside buildings, cameras are often better than lidar. Lidar has trouble with windows and glass. So, lidar is often used to help with fine distance measurements, but cameras usually make the main decisions.

In short, both camera and Lidar have their place, but cost and environmental factors affect what is used.



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