See how lidar works and why it's coming to your next car
See how lidar works and why it's coming to your next car
4:13

See how lidar works and why it's coming to your next car

Car Tech
[MUSIC] If you're at all interested in self-driving cars you've heard the term LIDAR. It's a contraction of light detection and ranging, or it's this. Inside is one or more laser emitter that send out a signal to bounce off objects in the real world. In this case, as the unit spins. Sending out the laser signals in a 360 degree array, into has multiple lasery meters, to aim low, high and mostly in the middle. That's ideal for a car that's moving, trying to track object around it that are moving, and do that in 3D. Glader is the best in telling you the distance to a future, and clear that its covering the mapping the entire area. Lidar is simply used for HD Maps, when you hear mapping referred to with lidar, we're not talking about navigational maps. But rather, contour maps, or what they call in the lidar business, Point Clouds. But know, that when you see these cool lidar visualizations, those are just for you. The computer in a self-driving car sees a vast array of mathematical relations. Inches. It really is about features, the position of the road and the lanes on a road relative to curves and things like that. And relative to buildings and other landmarks. Wheras the maps we use for navigating typically aren't that acurate. And they're more about points of interest, street names, and really picking a route. Well this was the first sensor, I think, that anybody ever made, whose output was intended to be used by a computer. David Hall is founder and CEO of Velodyne. He has the patent on 360 3D Lydar What does the computer want to see? He says well, it wants to see something that's really unambiguous. It's either a one or a zero. None of this stuff in between. And at a distance, how far it is away are some of the hardest things to get on camera because you don't really know, and you kinda tell from a camera. Well, it's about this far. So the laser told you the distance. And actually, I just told you, they'll send the laser beams out. If they never came back, there was nothing there. Nothing there for you to run into, the car can just go like hell. In the end, our cars will continue to embrace an array of sensors, not just lidar. Radar remains strong at being affordable, working at long ranges, and quickly figuring out the distance to an object. But not too accurately it's shape and contours or classification. Cameras excel in other areas. Detecting the color of objects and their shading, recognizing the contours of text or picking up painted lane lines that have almost no physical presence but mostly a visual one Camera data is different than light r data which is different than radar data. And so how you process that data is different and then what you do later on in the stages of the pipeline or how you communicate to the cloud with that data is also different. What's next for automotive lidar? First, cost. Lidar is still measured in thousands of dollars per unit. Seemingly cheap for what it does but try hiding that in the MSRP of a VW Jetta. Packaging, the LIDAR units spinning on top of a car today looks cool but carmakers want them to vanish eventually. I see those cars throughout the town and I see that thing spinning up there and I said, there's a good looking car. So I'm a little bit reluctant to go and hide the thing inside the body. It's like, come on, it's my car That probably means the push towards lighter units that have a fixed view of 70 or 80 degrees, but mounting several of those around the car, behind dark lenses. And cohesion, the auto industry likes to use a whole lot of one or two types of art, but I recently lost count of about 40 companies that are developing some kind of lighter for the car business And range. There's a push to move LiDAR from today's laser wavelength that can damage retinas, unless the power is limited, to a different wavelength that cannot damage eyes. Allowing the laser power to rise and LiDAR range to go up with it. Maybe the most impressive aspect of the LIDAR is until recently it was a hundred thousand dollar component too delicate to imagine being on the road other than technology trial. Today it's given in cars of the near future not just to help [INAUDIBLE] but also better versions of todays driver are safe. [BLANK_AUDIO]

Up Next

Crash Testing New Electric Cars Proves They're Typically Safer
ev-crash-tests-00-02-09-11-still260

Up Next

Crash Testing New Electric Cars Proves They're Typically Safer

See What Makes the Best Tire for Your Electric Car
ion-evo-as-suv-ih01a-motion-graphics-mp4-00-02-48-12-still001

See What Makes the Best Tire for Your Electric Car

Why Are So Many Electric Cars, Scooters and Bikes Burning?
ev-battery-fires-00-02-02-15-still243

Why Are So Many Electric Cars, Scooters and Bikes Burning?

Seen the New 2023 Prius? Here's Why It's Turning Heads
2023-prius-reveal-b-roll-toyota-mp4-00-00-39-19-still001

Seen the New 2023 Prius? Here's Why It's Turning Heads

The Bestselling EVs of 2022
best-selling-evs-2022-00-02-00-17-still233

The Bestselling EVs of 2022

Best Dash Cams: A Buying Guide
cnet-buyers-guide-dashcams-2022-00-00-27-07-still086

Best Dash Cams: A Buying Guide

GM's Electric Pickups Head On: Comparing the Sierra EV to the Silverado EV
b-roll-gmc-sierra-ev-denali-edition-1-gmc-mp4-00-03-33-14-still003

GM's Electric Pickups Head On: Comparing the Sierra EV to the Silverado EV

Meet a Mind-Bending Hybrid: The Sono Sion Solar-Grid EV
sono-sion-00-09-01-10-still220

Meet a Mind-Bending Hybrid: The Sono Sion Solar-Grid EV

These Are the Cars That Qualify Now for the New Tax Credit
large-15747-2023-id-4-volkswagen

These Are the Cars That Qualify Now for the New Tax Credit

Don't Buy an EV Until You See the Most Important Ones Coming in 2023
221007-yt-electrified-best-evs-coming-in-2023-3

Don't Buy an EV Until You See the Most Important Ones Coming in 2023

Tech Shows

The Apple Core
apple-core-w

The Apple Core

Alphabet City
alphabet-city-w

Alphabet City

CNET Top 5
cnet-top-5-w

CNET Top 5

The Daily Charge
dc-site-1color-logo.png

The Daily Charge

What the Future
what-the-future-w

What the Future

Tech Today
tech-today-w

Tech Today

Latest News All latest news

OnePlus Watch 2 Review: A Big Battery, But Falls Short in Other Ways
240223-site-oneplus-watch-2-v2

OnePlus Watch 2 Review: A Big Battery, But Falls Short in Other Ways

Samsung Galaxy Ring: Our First Glimpse of Samsung's Health-Tracking Wearable
samsung-galaxy-ring-00-01-28-12-still002.png

Samsung Galaxy Ring: Our First Glimpse of Samsung's Health-Tracking Wearable

This Concept Laptop from Lenovo Has a Transparent Display
240225-site-lenovo-translucent-laptop-concept-v3

This Concept Laptop from Lenovo Has a Transparent Display

Motorola's Rollable Concept Phone Wraps on Your Wrist
240225-site-motorola-rollable-concept

Motorola's Rollable Concept Phone Wraps on Your Wrist

Apple Vision Pro vs. Meta Quest 3: Breaking Down the Hype
240221-site-vision-pro-versus-meta-quest-3-v1

Apple Vision Pro vs. Meta Quest 3: Breaking Down the Hype

Apple Sports Is the Next Step in Apple's Big Sports Plans
240222-site-one-more-thing-apple-sports-v2

Apple Sports Is the Next Step in Apple's Big Sports Plans

Most Popular All most popular

First Look at TSA's Self-Screening Tech (in VR!)
innovation

First Look at TSA's Self-Screening Tech (in VR!)

Samsung Galaxy S24 Ultra Review: More AI at a Higher Cost
240123-site-samsung-galaxy-s24-ultra-review-4

Samsung Galaxy S24 Ultra Review: More AI at a Higher Cost

'Circle to Search' Lets Users Google From Any Screen
circlesearchpic

'Circle to Search' Lets Users Google From Any Screen

Asus Put Two 14-inch OLEDs in a Laptop, Unleashes First OLED ROG Gaming Laptop
asus-preces-00-00-25-11-still003

Asus Put Two 14-inch OLEDs in a Laptop, Unleashes First OLED ROG Gaming Laptop

Samsung Galaxy Ring: First Impressions
samsung-galaxy-ring-clean

Samsung Galaxy Ring: First Impressions

Best of Show: The Coolest Gadgets of CES 2024
240111-site-best-of-ces-2024-1

Best of Show: The Coolest Gadgets of CES 2024

Latest Products All latest products

This Concept Laptop from Lenovo Has a Transparent Display
240225-site-lenovo-translucent-laptop-concept-v3

This Concept Laptop from Lenovo Has a Transparent Display

Motorola's Rollable Concept Phone Wraps on Your Wrist
240225-site-motorola-rollable-concept

Motorola's Rollable Concept Phone Wraps on Your Wrist

See Adobe Lightroom on the Apple Vision Pro
adobe-lightroom-00-02-58-03-still006-1

See Adobe Lightroom on the Apple Vision Pro

This $400 Cane Has a Built-In Phone
p1022441-mp4-15-35-32-23-still001

This $400 Cane Has a Built-In Phone

Apple Vision Pro: Unboxed and Set Up
vlcsnap-2024-01-29-14h38m03s627.png

Apple Vision Pro: Unboxed and Set Up

Samsung Galaxy Ring: First Impressions
samsung-galaxy-ring-clean

Samsung Galaxy Ring: First Impressions

Latest How To All how to videos

Tips and Tricks for the Galaxy S24 Ultra
240216-site-galaxy-s24-ultra-tips-and-hidden-features-2

Tips and Tricks for the Galaxy S24 Ultra

TikTok Is Now on the Apple Vision Pro
tiktok-on-vision-pro-clean

TikTok Is Now on the Apple Vision Pro

Get Your TV Ready for the Big Game: Super Bowl Setup Tips
superbowl-tv-settings-thumb1

Get Your TV Ready for the Big Game: Super Bowl Setup Tips

How to Use a Quest 3 Like the Vision Pro
240202-site-spatial-computing-on-meta-quest-3

How to Use a Quest 3 Like the Vision Pro

How to Make a GPT in ChatGPT-4
howto-createyourowngpt-clean

How to Make a GPT in ChatGPT-4

Tips and Tricks for the Galaxy Watch 6
231120-site-tips-tricks-and-hidden-features-v2

Tips and Tricks for the Galaxy Watch 6