Traffic sign recognition system

Patent metadata

Field	Value
Publication number	US-2017154227-A1
Application number	US-201615352949-A
Country	US
Kind code	A1
Filing date	Nov 16, 2016
Priority date	Nov 26, 2015
Publication date	Jun 1, 2017
Grant date	—

Abstract

A traffic sign recognition system is provided, which includes a display unit for displaying, for a driver of a vehicle, caution information regarding a traffic sign, and a processor configured to execute a specific traffic sign detecting module for detecting a specific traffic sign ahead of the vehicle, the specific traffic sign indicating that traveling of the vehicle in a given direction is allowed, and a vehicle behavior determining module for detecting a traveling direction of the vehicle. The processor controls the display unit to display caution information regarding the specific traffic sign when the detected traveling direction of the vehicle is different from the given direction, and controls the display unit not to display the caution information when the detected traveling direction of the vehicle matches with the given direction of the detected specific traffic sign.

First claim

What is claimed is:

1 . A traffic sign recognition system, comprising:
a display unit for displaying, for a driver of a vehicle, caution information regarding a traffic sign; and a processor configured to execute:
a specific traffic sign detecting module for detecting a specific traffic sign ahead of the vehicle, the specific traffic sign indicating that traveling of the vehicle in a given direction is allowed; and
a vehicle behavior determining module for detecting a traveling direction of the vehicle; wherein
the processor is configured to control the display unit in response to an output of the specific traffic sign detecting module by controlling the display unit to display caution information regarding the specific traffic sign when the detected traveling direction of the vehicle is different from the given direction, and controlling the display unit to refrain from displaying the caution information when the detected traveling direction of the vehicle matches with the given direction of the detected specific traffic sign.

2 . The system of claim 1 , further comprising:
an alarm device for issuing an alarm for the driver of the vehicle, wherein the processor is further configured to execute a viewing state detecting module for detecting whether the specific traffic sign is viewed by the driver of the vehicle, and wherein when the specific traffic sign is detected as not viewed by the driver in the case where the traveling direction of the vehicle is different from the given direction, the processor controls the display unit to display the caution information regarding the specific traffic sign and controls the alarm device to issue the alarm.

3 . The system of claim 2 , wherein when the specific traffic sign is detected as viewed by the driver in the case where the traveling direction of the vehicle is different from the given direction, the processor controls the display unit to display the caution information regarding the specific traffic sign without controlling the alarm device to issue the alarm.

4 . The system of claim 2 , wherein when the specific traffic sign is detected as viewed by the driver in the case where the traveling direction of the vehicle is different from the given direction, the processor controls the display unit to refrain from displaying the caution information regarding the specific traffic sign and controls the alarm device to refrain from issuing the alarm.

5 . The system of claim 1 , wherein the vehicle behavior determining module detects the traveling direction of the vehicle based on an operation status of a direction indicator.

Assignees

• Mazda Motor

Inventors

• Moritani Takayuki
• Otsubo Yasutaka
• Arinaga Tsuyoshi

Classifications

• G08G1/056 Primary

  with provision for distinguishing direction of travel · CPC title

• G06K9/00818 Primary

  Physics · mapped topic

• G08G1/0967

  Systems involving transmission of highway information, e.g. weather, speed limits (transmission of navigation instructions to the vehicle G08G1/0968) · CPC title

• G06V20/582 Primary

  of traffic signs · 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