A parking space feature screening method based on binocular vision

A feature screening and binocular vision technology, applied in the parking field, can solve the problems of poor recognition and screening effects of image filtering technology, and achieve the goal of screening out interference features and irrelevant features, reducing feature quantities, and accurately identifying and ranging Effect

Active Publication Date: 2022-02-01
CHONGQING UNIV
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AI Technical Summary

Problems solved by technology

[0004] When performing feature extraction on the binocular parking space image, due to ground reflections, differences in the field of view of the left and right cameras, etc., there are a large number of interference feature points and irrelevant feature points in the extraction results. Screening effect is poor

Method used

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  • A parking space feature screening method based on binocular vision
  • A parking space feature screening method based on binocular vision
  • A parking space feature screening method based on binocular vision

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Embodiment Construction

[0052] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0053] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The invention discloses a method for screening parking space features based on binocular vision. The method comprises the following steps: respectively extracting corner points of parking space images collected by left and right cameras; screening the extracted corner points; identifying parking space signs The line and the straight line of the profile of the car block; extract the color feature area of ​​the car block; match the straight line segment with the corner point; match the color with the corner point. The present invention proposes a feature screening method based on epipolar constraints and multi-feature synthesis of parking spaces, which can effectively screen out interference features and irrelevant features, and greatly reduce the amount of features, which is convenient for quickly and accurately realizing the identification and recognition of target parking spaces. ranging.

Description

technical field [0001] The invention relates to the field of parking, in particular to a method for screening features of parking spaces based on binocular vision. Background technique [0002] According to relevant foreign statistical analysis, 8% of traffic accidents are caused by drivers reversing, and 11% of traffic accident fatalities are caused by reversing accidents. The automatic parking system can complete the detection and control of the vehicle parking position, which can not only completely liberate the driver's hands, but also avoid parking accidents caused by the driver's personal factors, and has a very broad application prospect. [0003] Existing parking environment perception technologies are mainly based on ultrasonic waves, millimeter-wave radar and machine vision. Ultrasonic or millimeter-wave radar must rely on the reflection of obstacles to determine the orientation of obstacles. It is powerless for some plane targets (such as parking lines, water sur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V20/56G06V10/44G06V10/48
CPCG06V20/586G06V10/44G06V10/48
Inventor 程森林周志伟韩雨松余小清
Owner CHONGQING UNIV
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