News

New Method Combats Virtual Reality Sickness

Views of the virtual environment before and after subtle, dynamic FOV modification. (Photo: Ajoy Fernandes and Steve Feiner) Researchers have developed a method of combating virtual reality (VR) sickness that can be applied to consumer head-worn VR displays such as the Sony PlayStation VR. The approach dynamically, yet subtly, changes the user’s field of view (FOV) in response to visually perceived motion.

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Soft Actuator Provides Gentle Strength for Robots

Compliant electrodes are attached to each side of the membrane and cause it to stretch when voltage is applied. A membrane switches from its more compact state to its stretched state when voltage is applied to its electrodes. (©Alejandro Posada) Researchers at the Max Planck Institute for Intelligent Systems in Stuttgart developed a motion system that is compliant and can be integrated in robots thanks to its space-saving design. The device consists of a dielectric elastomer actuator (DEA), which is a membrane made of hyperelastic material like a latex balloon with flexible electrodes attached to each side. The stretching of the membrane is regulated by means of an electric field between the electrodes.

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Technique Controls Autonomous Vehicles in Extreme Conditions

Georgia Tech researchers are using an electric-powered autonomous vehicle to help driverless vehicles maintain control at the edge of their handling limits. (Photo: Rob Felt) Researchers have devised a novel way to help keep a driverless vehicle under control as it maneuvers at the edge of its handling limits. The new technology is being tested by racing, sliding, and jumping one-fifth-scale, fully autonomous auto-rally cars at the equivalent of 90 mph. The technique – model predictive path integral control (MPPI) – was developed to address the nonlinear dynamics involved in controlling a vehicle near its friction limits.

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System Makes Airport Surface Traffic More Efficient

Researchers are attempting to improve the control tower software system using mathematics and optimization techniques. (Photo: ThinkStock) Researchers have developed an optimization system that identifies the optimal timing and taxiing sequences for runway use by a given aircraft. It plans detailed taxiing routes, recommends new routes automatically, and responds to a continuous stream of updated information. The model takes into account the basic rules and physical restrictions that apply at all airports, such as safety zones around turning aircraft and one-way taxiing routes.

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NASA Tests Technologies to Increase Drone Uses

Photo: NASA/David C. Bowman NASA researchers and drone industry representatives foresee a day when small unmanned aircraft systems (UAS) are used in wildfire spotting, precision agriculture, wildlife monitoring, and small package delivery.

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Will VR be the new way to watch sports?

This week's Question: Fox Sports offered virtual-reality streams from last week's U.S. Open, a major golf championship in Oakmont, PA. Sports fans who owned the right devices could watch the golf event on the television while using VR for enhancements: game recaps, highlights of a particular play, features, and brief cut-ins to live play. Virtual reality still faces adoption challenges. Viewers need to buy special equipment to view the broadcast, and the users may find the devices too inconvenient and cumbersome to wear regularly. What do you think? Will VR be the new way to watch sports?

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Will AI improve vehicle safety by 2020?

This week's Question: As the competition to develop self-driving cars intensifies, Toyota Motor Corp. announced that over the next five years the company will spend $1 billion on the integration of artificial intelligence (AI). Gill Pratt, CEO of Toyota Research Institute, recently said Toyota aims to improve car safety by enabling vehicles to anticipate and avoid potential accident situations. While today's driver assistance systems largely use image sensors to avoid obstacles within the car’s lane, Pratt said TRI was looking at AI solutions to enable "the car to be evasive beyond the one lane."

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