Institute of medical and human genetics, Research institute in Darlinghurst, Australia

Melbourne [Australia], June 14 : Researchers have developed little devices that see and remember in the same manner that people do, in a promising step towards one day having apps that can make quick, complicated judgements, such as self-driving automobiles.The neuromorphic device is a single chip powered by a doped indium oxide sensing element hundreds of times thinner than a human hair and requires no additional parts to function.RMIT University engineers in Australia led the work, with contributions from researchers at Deakin University and the University of Melbourne.The team's research demonstrates a working device that captures, processes and stores visual information. With precise engineering of the doped indium oxide, the device mimics a human eye's ability to capture light, pre-packages and transmits information like an optical nerve, and stores and classifies it in a memory system like the way our brains can.Collectively, these functions could enable ultra-fast decision making, the team says.Team leader Professor Sumeet Walia said the new device can perform all necessary functions - sensing, creating and processing information, and retaining memories - rather than relying on external energy-intensive computation, which prevents real-time decision making."Performing all of these functions on one small device had proven to be a big challenge until now," said Walia from RMIT's School of Engineering."We've made real-time decision making a possibility with our invention, because it doesn't need to process large amounts of irrelevant data and it's not being slowed down by data transfer to separate processors."The new device was able to demonstrate an ability to retain information for longer periods of time, compared to previously reported devices, without the need for frequent electrical signals to refresh the memory. This ability significantly reduces energy consumption and enhances the device's performance.Their findings and analysis are published in Advanced Functional Materials.First author and RMIT PhD researcher Aishani Mazumder said the human brain used analog processing, which allowed it to process information quickly and efficiently using minimal energy."By contrast, digital processing is energy and carbon intensive, and inhibits rapid information gathering and processing," she said."Neuromorphic vision systems are designed to use similar analog processing to the human brain, which can greatly reduce the amount of energy needed to perform complex visual tasks compared with today's technologiesThe team used ultraviolet light as part of their experiments, and are working to expand this technology even further for visible and infrared light - with many possible applications such as bionic vision, autonomous operations in dangerous environments, shelf-life assessments of food and advanced forensics."Imagine a self-driving car that can see and recognise objects on the road in the same way that a human driver can or being able to able to rapidly detect and track space junk. This would be possible with neuromorphic vision technology."Walia said neuromorphic systems could adapt to new situations over time, becoming more efficient with more experience."Traditional computer vision systems - which cannot be miniaturised like neuromorphic technology - are typically programmed with specific rules and can't adapt as easily," he said."Neuromorphic robots have the potential to run autonomously for long periods, in dangerous situations where workers are exposed to possible cave-ins, explosions and toxic air."The human eye has a single retina that captures an entire image, which is then processed by the brain to identify objects, colours and other visual features.The team's device mimicked the retina's capabilities by using single-element image sensors that capture, store and process visual information on one platform, Walia said."The human eye is exceptionally adept at responding to changes in the surrounding environment in a faster and much more efficient way than cameras and computers currently can," he said."Taking inspiration from the eye, we have been working for several years on creating a camera that possesses similar abilities, through the process of neuromorphic engineering."Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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