Self-driving cars: Where do they go from here? (pictures)
The road to the future is unmanned. Here are some of the robo-vehicles that have helped to pave the way.
Google's self-driving car
One of Google's self-driving cars maneuvers through the streets of in Washington, D.,C., in May 2012. The system on a modified Toyota Prius combines information gathered from Google Street View with artificial intelligence software that combines input from video cameras inside the car, a LIDAR sensor on top of the vehicle, radar sensors on the front of the vehicle and a position sensor attached to one of the rear wheels that helps locate the car's position on the map.
Photo by: Karen Bleier/AFP/GettyImages / Caption by:
Lexus LS Integrated Safety self-driving car
A Lexus LS Integrated Safety self-driving car is displayed at the Lexus booth during the 2013 International CES at the Las Vegas Convention Center on January 8, 2013 in Las Vegas, Nevada.
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"The Boss" of DARPA Urban Challenge
Using a combination of LIDAR, radar, vision and mapping GPS technologies to see the world around it, this unmanned Chevrolet Tahoe known as "The Boss" used only electronics to drive itself through a 60-mile urban course in November 2007 to win the prestigious U.S. Defense Department sponsored competition, DARPA Urban Challenge.
Photo by: David Paul Morris/Getty Images / Caption by:
International Intelligent Vehicle symposium
Passengers take part in a test drive of an "intelligent vehicle" at the International Intelligent Vehicle symposium at the Technical University of Eindhoven in June 2008. More than 30 vehicles participated from several international universities. The vehicles were designed to improve safety in traffic and comfort of drivers.
Photo by: Robin Utrecht/AFP/Getty Images / Caption by:
Stanford's self-driving Audi TTS, Shelley
Stanford's self-driving Audi TTS, Shelley, hit 120 mph on track test seen here in August 2012. Using new research on professional drivers' brain activity, Stanford hopes to improves the car's self-driving abilities.
A 2006 Volkswagen Passat Station wagon diesel, heavily modified and robotized by a team from Stanford University, begins the second stage of the DARPA urban challenge in Victorville, California on November 3, 2007.
Photo by: Tangi Quemener/AFP/Getty Images / Caption by: