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Patent Searching and Data


Title:
TRAFFIC LIGHT RECOGNITION METHOD AND TRAFFIC LIGHT RECOGNITION DEVICE
Document Type and Number:
Japanese Patent JP2023150749
Kind Code:
A
Abstract:
To provide a traffic light recognition method and a traffic light recognition device that can distinguish between an object resembling a traffic light and a traffic light among traffic light candidates included in an image that captures ahead of a vehicle.SOLUTION: A traffic light recognition method and a traffic light recognition device include the steps of: extracting traffic light candidates from an image that captures ahead of a vehicle in a traveling direction; calculating, as a first change history, a model for a direction history corresponding to a traffic light candidate for the vehicle in a static mode based on travel information including the amount of movement and the amount of change in attitude angle of the vehicle; calculating, as a second change history, a direction history of the vehicle in the static mode based on positional trajectories of the traffic light candidates on the image; and identifying, as an identified traffic light candidate, only the traffic light candidates for which a difference between the first change history and the second change history is equal to or less than a prescribed amount.SELECTED DRAWING: Figure 1

Inventors:
NAGASE MASANOBU
MATSUO HARUO
Application Number:
JP2022060005A
Publication Date:
October 16, 2023
Filing Date:
March 31, 2022
Export Citation:
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Assignee:
NISSAN MOTOR
RENAULT SAS
International Classes:
G06T7/246; G06T7/00; G08G1/16
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu