TRAFFIC LIGHT RECOGNITION DEVICE AND TRAFFIC LIGHT RECOGNITION METHOD

Title:

TRAFFIC LIGHT RECOGNITION DEVICE AND TRAFFIC LIGHT RECOGNITION METHOD

Document Type and Number:

WIPO Patent Application WO/2017/009933

Kind Code:

A1

Abstract:

A traffic light recognition device is provided with a camera (11) that captures an image of the vicinity of a vehicle, a map information acquisition unit (17) that acquires map information for the vicinity of the vehicle, a current vehicle position detection unit (12) that detects the current position of the vehicle on a map, and a traffic light position estimation unit (21) that estimates the position of the traffic light in the image on the basis of the current vehicle position and the map information. The traffic light recognition device is additionally provided with an imaging orientation setting unit (23) that sets the imaging direction of the camera on the basis of the position of the traffic light in the image and the future direction of movement of the traffic light in the image, a camera orientation control unit (24) that changes the imaging direction of the camera to an imaging direction set by an imaging direction setting unit, and a traffic light recognition unit (14) that recognizes the traffic light from the image captured by the camera in the imaging direction. The present invention makes it possible to highly accurately detect the lighting state of a traffic light without being affected by the orientation of a camera.

Inventors:

YAMANOI DAIKI (JP)
MATSUO HARUO (JP)
OKI TAKAHIKO (JP)
SUZUKI AKIRA (JP)

Application Number:

PCT/JP2015/070041

Publication Date:

January 19, 2017

Filing Date:

July 13, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NISSAN MOTOR (JP)

International Classes:

G08G1/16; H04N5/225

Domestic Patent References:

WO2014162797A1	2014-10-09
WO2008038370A1	2008-04-03

Foreign References:

JP2007288444A	2007-11-01
JP2003151042A	2003-05-23

Other References: