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Facts about Artificial Cartilage

July 12, 2020

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Designing a 4D camera for robots

Stanford engineers have developed a 4D camera with an extra-wide field of view. They believe this camera can be better than current options for close-up robotic vision and augmented reality. A new camera that builds on technology first described by Stanford researchers more than 20 years ago could generate the kind of information-rich images that robots need to navigate the world. This camera, which generates a four dimensional image, can also capture nearly 140 degrees of information. With robotics in mind, Dansereau and Gordon Wetzstein, assistant professor of electrical engineering, along with colleagues from the University of California, San Diego have created the first-ever single-lens, wide field of view, light field camera, which they are presenting at the computer vision conference CVPR 2017 on July 23. Robots might use this to see through rain and other things that could obscure their vision. The extremely wide field of view, which encompasses nearly a third of th

Google Has Started Adding Imagination to Its DeepMind AI

Researchers have started developing artificial intelligence with imagination – AI that can reason through decisions and make plans for the future, without being bound by human instructions. Another way to put it would be imagining the consequences of actions before taking them, something we take for granted but which is much harder for robots to do. The team working at Google-owned lab DeepMind says this ability is going to be crucial in developing AI algorithms for the future, allowing systems to better adapt to changing conditions that they haven’t been specifically programmed for. Insert your usual fears of a robot uprising here. The researchers found their new ‘imaginative’ AI solved 85 percent of the levels it was given, compared with 60 percent for AI agents using older approaches. “The imagination-augmented agents outperform the imagination-less baselines considerably,” say the researchers. “They learn with less experience and are able to deal with the imperf

Astronomers find that the sun’s core rotates four times faster than its surface

The sun’s core rotates nearly four times faster than the sun’s surface, according to new findings by an international team of astronomers. Scientists had assumed the core was rotating like a merry-go-round at about the same speed as the surface. “The most likely explanation is that this core rotation is left over from the period when the sun formed, some 4.6 billion years ago,” said Roger Ulrich, a UCLA professor emeritus of astronomy, who has studied the sun’s interior for more than 40 years and co-author of the study that was published today in the journal Astronomy and Astrophysics. “It’s a surprise, and exciting to think we might have uncovered a relic of what the sun was like when it first formed.” The rotation of the solar core may give a clue to how the sun formed. After the sun formed, the solar wind likely slowed the rotation of the outer part of the sun, he said. The rotation might also impact sunspots, which also rotate, Ulrich said. Sunspots can be enormous; a sin

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