Image processing method of parking assist system

Abstract

The invention relates to an image processing method of a parking assist system, comprising the steps: 1) a distortion formula is acquired according to an acquired vertical distorted image, and a distortion correcting enquiry form corresponding to the distortion formula is set up; 2) a road coordinate system and an image coordinate system are set on a horizontal distorted image according to the acquired horizontal distorted image, the horizontal distorted image is corrected by utilizing the distortion correcting enquiry form obtained in the step 1), and the mapping relation between the road coordinate system and the image coordinate system is acquired in the corrected horizontal image; 3) by utilizing the mapping relation between the road coordinate system and the image coordinate system inthe step 2), the calculated packing track of the expected parking travel is mapped and is displayed on the image undergoing distortion correction. The invention provides accurate image of environmentbehind the car for the drivers and displays the expected parking guiding line on the image, thus improving the safety of parking.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image processing method of an auxiliary reversing system. Background technique [0002] In order to assist the driver to back up and park the car better and faster, the reversing radar and visual reversing system that have emerged in recent years have given the driver some help, but the feedback information of the system is not convenient for the driver to quickly understand the reversing environment. Since most of the existing auxiliary reversing systems based on vision technology directly display the rear view images without any processing to the driver, especially in order to obtain a wider field of view behind the vehicle, the angle of view of the camera used in the auxiliary reversing system is relatively large. If it is large, it will distort the captured image and distort the geometric position information, so that the driver cannot truly understand the environment behind t...

AI Technical Summary

Problems solved by technology

[0002] In order to assist the driver to reversing and parking into the garage better and faster, the reversing radar and visual reversing system that have emerged in recent years, although they can help the driver to a certain extent, the feedback information of the system is not convenient for the driver to quickly understand the reversing environment.

Since most of the existing auxiliary reversing systems based on vision technology directly display the rear view images without any processing to the driver, especially in order to obtain a wider field of view behind the vehicle, the angle of view of the camera used in the auxiliary reversing system is relatively large. Large, this will distort the captured image and distort the geometric position information, so that the driver cannot truly understand the environment behind the car and affect the safety of reversing

Even if some assisted reversing systems show the reversing guide track or obstacles on the image, this is only displayed on the distorted image

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