Environmental recognition device and program

The environment recognition device addresses the challenge of false recognition due to illumination light reflections by estimating the three-dimensional position of the lighting device and excluding the road surface reflection area from the recognition process, ensuring accurate environment recognition.

JP7649418B2Active Publication Date: 2025-03-19AISIN CORP +1
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Patent Information

Application Number
JP2024503139
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-02-24
Filing Date
2023-02-20
Publication Date
2025-03-19
Estimated Expiration
2043-02-20

AI Technical Summary

Technical Problem

Existing environment recognition technologies struggle to accurately estimate the environment when the illumination light from a lighting device is reflected on the road surface, especially if the lighting device is not visible in the image.

Method used

The proposed environment recognition device includes a three-dimensional position estimating unit, a position information acquisition unit, a road surface reflection area estimating unit, and an environment recognition unit. These units work together to estimate the three-dimensional position of the lighting device, acquire position information, estimate the road surface reflection area, and recognize the environment by excluding the reflection area, thereby preventing false recognition.

Benefits of technology

This solution effectively prevents false recognition of the environment caused by the reflection of illumination light from the lighting device on the road surface, regardless of whether the lighting device is visible in the image, ensuring accurate environment recognition.

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Abstract

This environment recognition device is provided with: a three-dimensional position estimation unit that estimates the three-dimensional position of a lighting device in the environment from an image captured by an image capture device that is mounted on a moving body and that captures images of the environment surrounding the moving body; a position information acquisition unit that acquires position information of the moving body; a road surface reflection area estimation unit that, on the basis of the three-dimensional position of the lighting device as estimated from an image captured by the image capture device of the moving body at a first time point and on the basis of the position information of the moving body at a second time point, estimates a road reflection area that appears in an image captured by the image capture device at the second time point and that reflects illumination light emitted from the lighting device; and an environment recognition unit that recognizes the environment from the area of the image excluding the road surface reflection area, which reflects the illumination light.
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