Automatic parking-oriented parking space visual identification system and identification method thereof

An automatic parking and visual recognition technology, applied in the traffic control system, traffic control system, character and pattern recognition of road vehicles, etc., can solve the problem that the target parking space cannot be effectively identified, the detection deviation of the target parking space, and the parking position is biased towards the target parking space. It can avoid the detection of redundant straight lines and interference straight lines, improve the robustness, and reduce the false detection rate.

Pending Publication Date: 2019-10-15
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the parking space detection technology based on ultrasonic radar is too dependent on the environment around the target parking space. When there are no parked vehicles around the target parking space or the parked vehicles only exist on the front, rear or left and right sides of the target parking space, the target cannot be effectively identified. parking space
Moreover, after the parking process is over, the parking position of the vehicle is affected by the parking positions of the vehicles parked around the target parking space. The parking position deviates to one side of the target parking space or even exceeds the target parking space, resulting in parking failure
At the same time, the detection accuracy of ultrasonic radar is affected by environmental factors such as weather, temperature, and noise. Under harsh environmental conditions, there is a large deviation in the detection of the target parking space, which will have a negative impact on the final parking accuracy.

Method used

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  • Automatic parking-oriented parking space visual identification system and identification method thereof
  • Automatic parking-oriented parking space visual identification system and identification method thereof
  • Automatic parking-oriented parking space visual identification system and identification method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A parking space visual recognition system for automatic parking, such as figure 1 As shown, it includes a parking space image acquisition module, a parking space image recognition processing module, a parking space tracking module and a parking space display module. Each module is described below:

[0047] The parking space image acquisition module transmits the parking space video images collected in the parking lot to the parking space image recognition processing module. Such as figure 2 As shown, the parking space image acquisition module includes two wide-angle cameras, and each wide-angle camera has a base for its matching installation. Each camera can rotate 360 ​​degrees on the base and can adjust its own posture and shooting angle as required. The parking space image acquisition module is installed on the edge of the roof above the B-pillars on both sides of the vehicle as a whole, and is responsible for collecting parking space images in the parking lot.

...

Embodiment 2

[0052] Based on the above-mentioned parking space visual recognition system for automatic parking, a parking space visual recognition method for automatic parking comprises the following steps:

[0053] Step 1. The parking space image collection module collects the parking space images in the parking lot, and transmits the collected parking space video images to the parking space image recognition processing module.

[0054] Step 2. The parking space image recognition processing module recognizes and processes the received parking space video images frame by frame until a complete parking space is identified in a certain frame of video image, and determines the complete parking space identified in this frame of video image. The location is the target parking space, and the image coordinates of the four corners of the target parking space are passed to the parking space tracking module.

[0055] Such as image 3 As shown, when the parking space image recognition processing mod...

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Abstract

The invention relates to an automatic parking-oriented parking space visual identification system and an identification method thereof. The system comprises: a parking space image acquisition module for acquiring parking space images in a parking lot; a parking space image recognition processing module which is used for sequentially carrying out recognition processing on the received parking spacevideo images according to frames; a parking space tracking module which is used for tracking and identifying the target parking space identified by the parking space image identification processing module; and a parking space display module which is used for displaying the coordinate information of the target parking space and the target parking space transmitted by the parking space tracking module in a world coordinate system in real time. The design is reasonable, the target parking space can be accurately identified in different environments; and the recognition process is not affected byparking vehicles around the target parking space, so that the automatic parking process is more accurate, and the system has the characteristics of being relatively low in cost, relatively high in parking space recognition accuracy, capable of adapting to different environments, relatively good in robustness and the like, and has good market application prospects and popularization and use values.

Description

technical field [0001] The invention belongs to the technical field of computer image recognition, in particular to a parking space visual recognition system for automatic parking and a recognition method thereof. Background technique [0002] The prosperity and development of the economy and the progress of science and technology have pushed the automobile industry towards the direction of automation and intelligence. With the continuous increase of car ownership, a series of problems such as "difficulty in parking" have been caused. In order to make full use of the limited parking spaces in urban space and improve parking efficiency, automatic parking technology has emerged as the times require. As one of the key technologies of automobile intelligence, automatic parking technology has more accurate parking path and simpler parking operation than manual parking process, and can minimize scratches, collisions and other accidents caused by human error, making parking The c...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/10G08G1/14
CPCG08G1/141G06T7/10G06V20/586G06V20/588
Inventor 张小俊张玉峰孙凌宇张明路
Owner HEBEI UNIV OF TECH
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