A visual parking space detection method that can eliminate the influence of strong reflected light on the ground

Abstract

The invention relates to the technical field of automobile control, in particular to a visual parking space detection method capable of eliminating the influence of strong reflected light on the ground. After the vehicle parking system is started, use the camera outside the vehicle to obtain the ground image information of the parking position, and judge whether there is a strong reflection area on the ground at the parking position. If there is a strong reflection area, adjust the camera angle to obtain the ground image again information, until the reacquired image information eliminates the influence of strong reflected light, the parking system detects the parking space line frame, outputs the parking space coordinates, and completes the parking space detection. The invention obtains the ground image information of the parking position through the camera with an adjustable angle, and adjusting the rotation angle of the camera can eliminate the interference of the strong reflected light on the ground to the ingested information, and avoid the inability to obtain the accurate parking space line due to the influence of the strong reflected light on the surrounding view image If the frame problem occurs, the present invention can adapt to various ground reflection conditions, and the parking space recognition is more accurate.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a visual parking space detection method capable of eliminating the influence of strong reflected light on the ground. Background technique [0002] During the parking process, there are three types of existing parking space detection schemes. One is the detection method based on ultrasonic radar. This scheme uses ultrasonic radar arranged around the vehicle to send out and receive reflected ultrasonic waves to detect parking spaces, but This scheme relies on the reflected waves of obstacles around the target parking space to complete. The second is a detection scheme based on visual images, which uses the surround-view images presented by four fisheye cameras arranged in front, rear and left and right sides of the vehicle (such as figure 1 ), through the image processing method to detect and recognize the line frame of the parking space, but the image parking space is...

AI Technical Summary

Problems solved by technology

[0002] During the parking process, there are three types of existing parking space detection schemes. One is based on ultrasonic radar detection. This scheme uses ultrasonic radar arranged around the vehicle to send out and receive reflected ultrasonic waves to detect parking spaces, but This scheme relies on the reflected waves of obstacles around the target parking space to complete

The second is a detection scheme based on visual images, which uses the surround-view images presented by four fisheye cameras arranged in front, rear and left and right sides of the vehicle (such as figure 1 ), through image processing methods to detect and recognize the line frame of the parking space, but the image parking space is too affected by factors such as light and weather

The third solution is the fusion of ultrasonic radar and visual parking space, which can combine the advantages of visual parking space and radar parking space, and more accurately detect the parking space line frame and obstacle information, but when the ground reflection in the open parking garage When the light affects the presentation of the camera image, the visual image and the detection function of the ultrasonic radar will be affected

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