Event driven sensor boosts eye tracking smart glasses
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A neuromorphic, event driven sensor developed in France is being used for eye tracking in the latest industrial smart glasses.
The GenX320 sensor from Prophesee allows eye movement sampling rate of up to 1000Hz in the aSee glasses-developed by 7invensun of China.
Using event driven processing for eye tracking rather than full frame AI analysis enables more responsive feedback with lower power as it only uses changes in the image. This enables the device to accurately capture even the most minute eye movements, such as rapid saccades and microsaccades.
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The aSee glasses are aimed at industrial and medical diagnostics and assistive devices, as well as automotive and aviation safety, and smart eyewear.
“This is a significant validation of our technology’s applicability in the wearables market. 7invensun is a leader in eye-tracking solutions, and by enabling ultra-fast, high-efficiency tracking in the aSee platform, we help improve responsiveness and ensure more accurate and detailed eye-tracking analysis at the user’s point of focus. Our efficient sensor design also reduces the physical footprint and weight of the device, extending wearability and usage time,” said Luca Verre, CEO and co-founder of Prophesee.
The device supports use with contact lenses and features detachable lenses, catering to the needs of users with different vision requirements.
In laboratory neuroscience the glasses can accurately capture eye movements at high frame rates, aiding in the analysis of correlations between pupil changes and brain region activity, and studying microsaccade patterns in dyslexia.
In sports science, the glasses can be used to study athletes’ visual strategies during high-speed movements, such as decision-making pathways before serving in table tennis and observation/decision-making behaviors regarding environmental factors and opponents’ actions during play.
“The collaboration with Prophesee is a combination of strengths, as we are able to leverage the performance, efficiency, and size of the sensors to enable the precision eye-tracking capabilities required by this device, as well as its lightweight and power-efficient design. The launch of aSee Glasses-EVS marks a significant step forward in our journey to decode human cognition through eye movement,” said Huang Tongbing, Founder & CEO of 7invensun.
Prophesee is heavily backed by several Chinese companies, including smartphone maker Xiaomi as well as Inno-Chip, an investment firm backed by Will Semiconductor, owner of camera sensor maker OmniVision, and Sinovation Ventures, which saw its first investment in a European startup.
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