Image sensors convert light into electrical signals. Scientific and industrial cameras used to rely on charged coupled device (CCD) detectors – and there still are areas in astronomy and scientific imaging where CCDs are used – but now most machine vision cameras will integrate a complementary metal-oxide semiconductor (CMOS) detector.

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Inspired by the human retina, Prophesee’s event-based Metavision sensor comprises 300,000 independent and asynchronous pixels that are responsive to low contrast, transient events. These pixels are essentially relative-change detectors, and activate independently according to any change in contrast detected in a scene. When activated, the pixels create a stream of time-stamped events in which their location within the sensor and the direction of the change in brightness - event-on or event-off - are encoded.

‘We have software algorithms that mimic the way the brain leverages visual information... Each intelligent pixel is triggered by motion and decides when to activate,’ explained Guillaume Butin, marketing director at Prophesee. ‘One pixel activating is an event, and we only see what moves.’

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Tracking space debris among projects by event-based inventors

Prophesee has highlighted development work using neuromorphic sensing with the launch of its Inventors Community.

The first five projects Prophesee features include Gensight Biologics’ work to restore sight to blind patients; a project at the National University of Singapore to give robots a human sense of touch; and tracking space debris by researchers at Western Sydney University.

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SynSense and Prophesee, two leading neuromorphic technology companies, today announced a partnership that will see the two companies leverage their respective expertise in sensing and processing to develop ultra-low-power solutions for implementing intelligence on the edge for event-based vision applications.

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Both the award winners at this year's Vision show in Stuttgart – Prophesee for the Vision Award and GrAI Matter Labs for best start-up – were AI devices. In fact, of the 15 young companies pitching for best start-up, 10 mentioned AI.

Neural networks have become a phenomenon and the solutions addressing industrial imaging and the pain points associated with production lines – the lack of pictures of defects and the challenges of annotating data – are multiplying.

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Prophesee has won this year’s Vision Award for its neuromorphic processor. The prize, presented at Vision Stuttgart today, recognises innovation in machine vision.

Prophesee is making great strides with its event-based sensing, which operates differently to frame-based approaches.

Martin Wäny of the judging panel called event-based vision a 'new paradigm' in imaging technology, one that's been worked on for 20 years, but is now coming to fruition through the efforts of Prophesee.

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