Driving assistance systems

The driving assistance device combines visible and far-infrared cameras with machine learning to enhance pedestrian recognition and distance estimation in low-light conditions, ensuring accurate collision avoidance.

JP2026090982APending Publication Date: 2026-06-03TOYOTA JIDOSHA KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2024-11-22
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Existing driving assistance devices struggle to accurately recognize pedestrians and determine their distance in low-light conditions using visible light cameras, as infrared cameras have lower resolution and reduced recognition accuracy at longer distances.

Method used

A driving assistance device equipped with both a visible light camera and a far-infrared camera uses trained machine learning models to generate bounding boxes on both camera images, allowing for accurate pedestrian recognition and distance estimation even in dark environments by coordinating the image regions between the two cameras.

Benefits of technology

Enables precise pedestrian detection and distance measurement in low-light conditions, ensuring timely braking actions to avoid collisions.

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Abstract

Even in dark environments, the system accurately recognizes the presence of pedestrians from visible light camera images and determines the distance to them. [Solution] The driving assistance device for a vehicle (1) is equipped with a visible light camera (3a) and a far-infrared camera (3b). A bounding box (32) is generated on the image (30) of the far-infrared camera (3b) that surrounds an image region recognized as a candidate for a pedestrian. A bounding box (43) is generated at a position surrounding the image region on the image (40) of the visible light camera (3a) that corresponds to this image region on the image (3b) of the far-infrared camera (3b). The presence of a pedestrian is identified from the image within the bounding box (43) generated on the image (40) of the visible light camera (3a). The distance to the pedestrian is determined from the image including the bounding box (43) generated on the image of the visible light camera (3a), or from the distance measurement result of a distance measuring device that detects the distance to the pedestrian.
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