The system uses a camera to track the motion of raindrops and snowflakes and then applies a computer algorithm to predict where those particles will be just a few milliseconds later. The light projection system then adjusts to deactivate light beams that would otherwise illuminate the particles in their predicted positions.And if the system fails, the lights will still function as normal headlights. More
“A human eye will not be able to see that flicker of the headlights,” Narasimhan said. “And because the precipitation particles aren’t being illuminated, the driver won’t see the rain or snow either.”
To people, rain can appear as elongated streaks that seem to fill the air. To high-speed cameras, however, rain consists of sparsely spaced, discrete drops. That leaves plenty of space between the drops where light can be effectively distributed if the system can respond rapidly, Narasimhan said.
In their lab tests, Narasimhan and his research team demonstrated that their system could detect raindrops, predict their movement and adjust a light projector accordingly in 13 milliseconds. At low speeds, such a system could eliminate 70 to 80 percent of visible rain during a heavy storm, while losing only 5 or 6 percent of the light from the headlamp.
Welcome to ...
The place where the world comes together in honesty and mirth.
Windmills Tilted, Scared Cows Butchered, Lies Skewered on the Lance of Reality ... or something to that effect.
Windmills Tilted, Scared Cows Butchered, Lies Skewered on the Lance of Reality ... or something to that effect.
Saturday, July 14, 2012
New Headlights Make Raindrops Disappear
Do
you ever have trouble driving through rain at night because every
raindrop reflects your headlights? Carnegie Mellon’s Robotics Institute
has developed a new type of car headlight that reduces glare from
falling rain or snow. The technology is akin to running between the
raindrops -with light! Associate robotics professor Srinivasa Narasimhan
explained:
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment