μWAI
Unlocking devices upon face recognition for a few additional micro watts
CEA-Leti’s autonomous imager μWAI activates any device upon recognition of a specific pattern—e.g., unlocking a smartphone upon the recognition of a face. It is the first highly efficient, compact and ultra-low power smart awaken system designed for everyday small appliances:
- Consuming 10,000 × less than low-power camera plus processor set
- Highly compact: €1 coin
- Privacy-compliant AI-based recognition: near human detection performance (95%)
- wide operating lightening condition
- “Always-on” CR1025 Battery lifetime: 5 years
- 3-6 μW operation
Applications
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What's new?
μWAI features a novel readout and processing architecture co-designed
with an optimized algorithmic pipeline providing ultra-low power wake-up
modes and compact silicon implementation. It is the first smart image sensor jointly featuring: - Auto-exposure for all lightening condition and 88dB dynamic range,
- Motion detection and feature extraction for event based functioning,
- AI-based object recognition triggering highly reliable identification.
These key features enable highly reliable decision taking for few tens
of pJ/pixel/frame, outperforming the best “off-the-shelf” solutions.
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What’s next?
The core of CEA-Leti’s autonomous imager is its recognition engine. CEA-Leti’s team is working hand in hand with an industrial partner towards the development of specific smart imager products.
This technology can be applied to other use cases, leveraging the institute expertise in integrating a compact recognition engine within a smart image sensor. CEA-Leti tailors competitive solutions to meet the requirements of its partners.