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Time correction method, device, equipment and storage medium for traffic signal lights

A technology of traffic signal lights and time correction, which is applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of unstoppable braking, sudden braking, and affecting the reliability and safety of vehicles, so as to reduce errors, improve accuracy, Effect of increasing driving reliability and safety

Active Publication Date: 2021-11-02
GUANGZHOU WERIDE TECH LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the driving process of the vehicle, an error of 1 second is enough to cause sudden braking or inability to brake, which seriously affects the driving reliability and safety of the vehicle.

Method used

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  • Time correction method, device, equipment and storage medium for traffic signal lights
  • Time correction method, device, equipment and storage medium for traffic signal lights
  • Time correction method, device, equipment and storage medium for traffic signal lights

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] figure 1 It is a flow chart of a method for correcting the time of traffic lights provided by Embodiment 1 of the present invention. This embodiment is applicable to the situations of automatic driving and assisted driving of vehicles. Specifically, it is suitable for identifying the time information of traffic lights and using the The time information assists the travel planning of the vehicle. The method can be executed by a time correction device of traffic signal lights, and the time correction device of traffic signal lights can be integrated in the vehicle, or can be used as an external device of the vehicle.

[0077] refer to figure 1 , the method specifically includes the following steps:

[0078] S110. Acquire multiple frames of target images with time stamps, where traffic lights are included in the target images.

[0079] In an embodiment, the time correction device for traffic lights may also be equipped with a vehicle toX (V2X) system. Specifically, for...

Embodiment 2

[0105] Figure 2A It is a flow chart of a method for correcting the time of a traffic signal light provided by Embodiment 2 of the present invention. Figure 2B It is a flow chart of a sub-method for establishing a candidate state sequence provided by Embodiment 2 of the present invention.

[0106] This embodiment is further refined on the basis of the foregoing embodiments. Specifically, the identified state information may be managed in a manner of candidate state sequences.

[0107] refer to Figure 2A , the method specifically includes the following steps:

[0108] S210. Acquire multiple frames of target images with time stamps, where traffic lights are included in the target images.

[0109] S220. Identify the status information of the traffic signal light from each frame of the target image, where the status information includes passage indication information and time information for maintaining the passage indication information.

[0110] It should be noted that the...

Embodiment 3

[0140] image 3 It is a structural diagram of a time correction device for traffic signal lights provided by Embodiment 3 of the present invention. This embodiment can be applied to the situations of automatic driving and assisted driving of vehicles. Specifically, it is suitable for identifying the time information of traffic signal lights, and using the The time information assists the travel planning of the vehicle. The device can be integrated in the time correction device of the traffic signal lamp, and the time correction device of the traffic signal lamp can be integrated in the vehicle, or can be used as an external device of the vehicle.

[0141] refer to image 3 , the device specifically includes the following structures: a target image acquisition module 310 , a state information identification module 320 and a correction module 330 .

[0142] The target image acquisition module 310 is configured to acquire multiple frames of target images with time stamps, and t...

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PUM

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Abstract

The embodiment of the invention discloses a time correction method, device, equipment and storage medium of a traffic signal light. The method obtains multiple frames of target images with time stamps, and the target images have traffic lights; from each frame of the target image, the state information of the traffic lights is identified, and the state information includes traffic indication information, maintenance The time information of the passage indication information; using multiple time stamps belonging to the same passage indication information to correct the accuracy of the time information of the target image in the current frame, to solve the problem that only integer precision time information can be obtained through image processing technology The time error problem brought about can improve the accuracy of time information, thereby reducing the error of time information for identifying traffic lights, and increasing the driving reliability and safety of vehicles.

Description

technical field [0001] Embodiments of the present invention relate to automatic driving technologies, and in particular to a method, device, device and storage medium for time correction of traffic lights. Background technique [0002] In general, the recognition technology of the digital state in traffic lights can be used in technical fields such as vehicle automatic driving, assisted driving, and driving safety. [0003] It should be noted that during the driving process, the vehicle can obtain the countdown of the traffic lights, so that the auxiliary vehicle can make a more comfortable driving plan according to the countdown. For example, when the vehicle encounters a red light, the driving speed of the vehicle can be planned according to the countdown displayed by the traffic signal light. Exemplarily, the countdown is 20 seconds. If the vehicle continues to drive at the original driving speed and the vehicle can reach the red light stop area within 20 seconds, the ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/32
CPCG06V20/41G06V20/584G06V20/63G06V30/10
Inventor 李子贺雷雨苍黄章帅钟华韩旭
Owner GUANGZHOU WERIDE TECH LTD CO