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Detection method and system based on visual driving area

A driving area and detection method technology, applied in the field of detection methods and systems based on visual drivable areas, can solve the problems of detection segmentation algorithm interference and low accuracy, and achieve fast response, high detection accuracy, and safe braking distance. long effect

Pending Publication Date: 2022-05-17
BEIJING JINGWEI HIRAIN TECH CO INC
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Problems solved by technology

It will cause a lot of interference to the detection and segmentation algorithms, and the accuracy is not high

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  • Detection method and system based on visual driving area
  • Detection method and system based on visual driving area
  • Detection method and system based on visual driving area

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Embodiment Construction

[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in conjunction with the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0073] It should be noted that the terms "include" and "have" in the embodiments of this specification and the drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other step...

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Abstract

The embodiment of the invention provides a detection method and system based on a visual drivable area, and the method comprises the steps: obtaining a real-time fisheye image in a video stream signal of a vehicle camera, and determining a first longitude and latitude unfolded image corresponding to the real-time fisheye image according to a first preset mapping relation, the first preset mapping relation is a mapping relation from the fisheye image to the longitude and latitude expanded image; taking the first longitude and latitude expanded image as input of a deep network model to obtain a pixel-level classification result of the first longitude and latitude expanded image; traversing the pixel-level classification result through a boundary search algorithm to obtain a plurality of boundary points of the drivable area; and determining a real distance between the vehicle and the real position corresponding to each boundary point according to a second preset mapping relation, wherein the second preset mapping relation comprises a mapping relation between each pixel point in the longitude and latitude expanded image and the real distance between the vehicle and the real position corresponding to the pixel point. According to the invention, transverse and longitudinal potential dangers of the vehicle can be effectively pre-warned, and omnibearing pre-warning is realized.

Description

technical field [0001] The present invention relates to the technical field of driving detection, in particular to a detection method and system based on a visual drivable area. Background technique [0002] With the continuous development of science and technology and the improvement of living standards, users have higher and higher requirements for the safety performance of vehicles. During the driving process of the vehicle, due to the limitation of the cab's visible range, longitudinal rear-end collision and lateral collision accidents may occur, which pose certain safety hazards to the occupants in the vehicle and cause certain property losses. In order to avoid the above-mentioned accidents, the traditional method mainly uses millimeter-wave radar for detection, but it is greatly interfered by factors such as weather and environment, or the method of monocular camera is used, but the lateral danger cannot be detected. At present, the method in the prior art adopts the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/56G06V10/774G06V10/82G06K9/62G06N3/04G06T3/00
CPCG06N3/045G06F18/214G06T3/047
Inventor 张典民王世崇
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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