Image sensor brings in-cabin monitoring to mainstream vehicles
The OV9284 global shutter image sensor, says the company, is ideal for in-cabin camera modules in passenger vehicles, where driver state monitoring (DSM) and passenger-monitoring cameras need to be extremely small and unobtrusive, while complying with stringent safety regulations. DSM is used in semiautonomous vehicles to track the driver’s eye gaze and allow the vehicle to take control when the driver becomes drowsy or distracted.
Currently available in high-end cars, the feature is expected to migrate into mainstream vehicles, a market segment that is much more cost-sensitive.
“Upcoming mandates will require that all vehicles sold in the EU come equipped with driver-state monitoring, beginning with 2022 models,” says Thilo Rausch, product marketing manager at OmniVision. “The OV9284 is the industry’s first image sensor with the right balance of cost effectiveness, high-quality imaging, and advanced features, meeting the needs of the mainstream automotive market.”
The OV9284 features a near-infrared (NIR) quantum efficiency (QE) of 12% at 940 nm – the industry’s best in a driver-monitoring image sensor the company says – which allows designers to achieve sufficient illumination with fewer LEDs, thus reducing total system cost and power consumption. The sensor consumes 90 mW at 60 frames per second (fps), which is 30% lower than the nearest competitor.
In addition, the high-speed global shutter sensor with OmniPixel3-GS technology offers 1280 x 800 resolution at video speeds of up to 120 fps. The sensor is available in a compact automotive chip-scale package measuring 5237 x 4463 µm for smaller lens designs.
Its 27-degree chief ray angle with a low z height requirement provides a wider viewing angle in a thinner package, allowing for greater flexibility with camera placement. The OV9284 image sensor is available now.
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