Traffic sign recognition system

Patent metadata

Field	Value
Publication number	US-9865165-B2
Application number	US-201615354100-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 26, 2015
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A traffic sign recognition system includes a display for displaying caution information of a traffic light, and a processor configured to execute a traffic light detecting module for detecting a traffic light, a bypass lane detecting module for detecting a bypass lane, a line of sight detecting module for detecting a line of sight of a driver, and a vehicle behavior determining module for detecting a traveling direction of a vehicle. The processor controls the display to display caution information when the line of sight is different from a direction of the traffic light, and controlling the display to refrain from displaying the caution information when the detected line of sight matches the direction of the traffic light. The display is refrained from displaying the caution information when the bypass lane is detected and the traveling direction is toward the bypass lane, regardless of the line of sight.

First claim

What is claimed is:

1. A traffic sign recognition system, comprising:
a traffic light detecting module for detecting a traffic light ahead of a vehicle;
a display unit for displaying, for a driver of the vehicle, caution information regarding the traffic light; and
a processor configured to execute:
a bypass lane detecting module for detecting a bypass lane bypassing a road intersection where the detected traffic light is installed, at a position slightly before the vehicle reaches the traffic light;
a line of sight detecting module for detecting a line of sight of the driver;
a vehicle behavior determining module for detecting a traveling direction of the vehicle; wherein
the processor is configured to control the display unit to display the caution information regarding the traffic light when the detected line of sight of the driver is different from a direction of the traffic light, and controlling the display unit to refrain from displaying the caution information when the detected line of sight of the driver matches with the direction of the traffic light,
wherein the processor controls the display unit to refrain from displaying the caution information when the bypass lane is detected at the position slightly before the vehicle reaches the traffic light and the detected traveling direction is toward the bypass lane, regardless of the line of sight of the driver.

2. The system of claim 1 , wherein the processor controls the display unit to display the caution information when the line of sight of the driver is different from the direction of the traffic light and the vehicle has passed an entrance of the bypass lane.

3. The system of claim 1 , wherein the vehicle behavior determining module detects whether the vehicle travels toward the bypass lane based on an operation state of a direction indicator of the vehicle.

4. The system of claim 1 , wherein the bypass lane is for one of left turn and right turn.

Assignees

• Mazda Motor

Inventors

• Moritani Takayuki
• Otsubo Yasutaka
• Arinaga Tsuyoshi

Classifications

• G06K9/00818

  Physics · mapped topic

• G08G1/096783 Primary

  where the origin of the information is a roadside individual element · CPC title

• G06V20/582 Primary

  of traffic signs · CPC title

• G06V20/597

  Recognising the driver's state or behaviour, e.g. attention or drowsiness · CPC title

• G08G1/09623

  Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle (G08G1/0967 takes precedence) · CPC title