Bosch’s Smart Visor Tracks the Sun While You Drive

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Bosch’s Smart Visor Tracks the Sun While You Drive
Bosch, finally, has a better idea: An AI-enhanced liquid crystal display (LCD) screen that links with a driver-monitoring camera to keep the sun out of your eyes without blocking the outward view.
The Virtual Visor project began when Ryan Todd, a Bosch engineer in suburban Detroit, started daydreaming about what TV he wanted to buy during his sun-stroked commute: Eastbound every morning, westbound every afternoon.
He thought to himself, ‘Wow, I wish I could block out just this part of the sun, just like an LCD does.’”
The visor links a simple, honeycomb-pattern LCD screen, reinforced with polycarbonate, with a driver-facing RGB camera and an electronic control unit (ECU) running an algorithm and AI program.
The camera detects a driver’s face—eyes, nose, forehead—and the shadows the sun creates on the face.
“So we understand the position and layout of the driver’s face on every frame that comes into the camera,” Zink says.
AI tracks those facial landmarks, along with the sun’s relative position in the vehicle environment.
That AI, Zink says, employs neural networks and histogram of oriented gradients methods, with Bosch-trained models for those two AI techniques.
Difficult edge cases include faces being obscured by other objects: “Sunglasses don’t obscure much of the user’s face,” Zink says, but large hats, scarves, or medical-style facemasks all present challenges to algorithms that must locate the user, understand facial details, and analyze where shadows are being cast.
The actual sun-blocking, Zink says, is relatively easy: A patented algorithm pinpoints the driver’s eye position, and selectively darkens or lightens portions of the screen to ensure drivers aren’t blinded.
The proprietary algorithm determines the shadows and where to block corresponding sections of the visor surface

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