A Vision-Based Opening Method of Automobile Electric Tailgate

A technology for electric tailgates and automobiles, applied in power supplies, door/window accessories, power control mechanisms, etc., can solve the problems of limited wide application and high cost, achieve high recognition accuracy, reduce equipment costs, and reduce computing resources.

Active Publication Date: 2020-10-02
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent requires the vehicle to install an additional motion sensing module to intelligently control the tailgate, which is costly and limits its wide application in various types of vehicles

Method used

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  • A Vision-Based Opening Method of Automobile Electric Tailgate
  • A Vision-Based Opening Method of Automobile Electric Tailgate
  • A Vision-Based Opening Method of Automobile Electric Tailgate

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The invention relates to a vision-based method for opening an electric tailgate of an automobile. The method utilizes a vehicle-mounted surround-view camera to detect and identify the opening action of the electric tailgate. The method includes the following steps:

[0034] Step 1. Use the vehicle-mounted surround view camera to obtain specific action videos of people outside the vehicle in advance, and use the acquired specific action video images as training data. Specific actions are predefined actions that can trigger the opening of the tailgate. Considering the actual use requirements, the present invention defines two specific actions that can trigger the opening of the tailgate, including:

[0035] (1) Lifting the legs facing the tailgate: Stand upright facing the car's surround-view camera, straighten the legs and lift up, wit...

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Abstract

The invention relates to a vision-based method for opening an electric tailgate of an automobile, which is used to identify specific actions of people outside the vehicle to determine whether to open the electric tailgate. Specific action videos of external personnel are used as training data; 2) Preprocessing and feature extraction are performed to obtain training action primitive sequences; 3) Turn on the car’s surround-view camera to capture and process the current action; 4) Acquire action features from the current video image 5) Match the current action sequence with the training action primitive sequence to obtain the average distance between the two sequences; 6) Compare the average distance with the set threshold, if the average distance is less than the set , then it is determined that an action has occurred and the tailgate is opened; otherwise, it is determined that no specific action has been detected. Compared with the prior art, the invention has the advantages of reduced cost, high recognition accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of automobile electronics, in particular to a vision-based method for opening an electric tailgate of an automobile. Background technique [0002] The traditional car electric tailgate opening is mainly capacitive, that is, it needs to install a special capacitor, and it needs to be close to the car to open the tailgate. The patent with application number CN201621351899.2 has designed a new type of kick-sensing automatic tailgate opening device, which includes a kick-sensing device and an electric tailgate control ECU. The kick sensor designed by this patent is based on a capacitive method. People need to stand in a suitable position to kick their feet. It cannot be triggered if it is too close or too far away from the car. . The recognition accuracy of this electric tailgate opening method is poor, the operation is not intelligent enough, and because a special capacitor is required for detection, the equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F15/73G06K9/00
CPCE05F15/73E05Y2900/532E05Y2900/548E05Y2400/86E05Y2400/858E05F2015/767G06V40/20
Inventor 罗怡桂丁炜毅
Owner TONGJI UNIV
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