Cambridge team develops new autonomous driving systems
A team of researchers from the University of Cambridge has developed two new systems to aid autonomous driving, which use a combination of simple smartphone technology and machine learning.
The first system, known as SegNet, takes an image of a street scene and sorts the components into 12 different categories, such as roads, street signs, pedestrians, buildings and cyclists. Using a base set of 5,000 images in which every pixel was labelled by a team of Cambridge undergraduates, SegNet learns by example, continually improving. According to the researchers, the system currently has a 90 per cent accuracy rate.
"It's remarkably good at recognising things in an image, because it's had so much practice," said Alex Kendall, a PhD student in Cambridge’s Department of Engineering. "However, there are a million knobs that we can turn to fine-tune the system so that it keeps getting better."
For now, SegNet’s capabilities are limited primarily to highway and urban environments, although testing has also been successfully undertaken in other conditions and landscapes. While it is not yet ready to control a vehicle, it could be used as an early warning system, and is also significantly cheaper than the sensor technology widely used in today’s autonomous cars and trucks.
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