Non-standard parking behavior recognition method and device

A recognition method and behavior technology, applied in the field of image recognition, can solve the problems of low accuracy of pose estimation, influence of target extraction effect, poor robustness, etc.

Pending Publication Date: 2020-08-21
NANJING NORMAL UNIVERSITY
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Problems solved by technology

Lv Fenghua (Lv Fenghua. Research on Vehicle Classification Method Based on SVM Considering Tilt Angle [D]. Kunming: Kunming University of Science and Technology, 2011) used Freeman linked list to track and extract the vehicle outline, and then obtained the center of the front and rear wheels of the vehicle through the circle detection method, and calculated the vehicle The tilt angle between the image and the horizontal direction, this method only uses the external geometric features of the vehicle to identify the vehicle, and the classification recognition rate is easily affected by image shadows and mutual occlusion between vehicles; ZhangZ (Zhang Z et al.Three-dimensional deformable-model-based localization and recognition of road vehicles[J].IEEE Transactions on Image Processing,2012,21(1):1-13) pro

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  • Non-standard parking behavior recognition method and device
  • Non-standard parking behavior recognition method and device

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Embodiment Construction

[0090] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0091] See figure 1 , which shows the irregular parking behavior recognition method of the present invention.

[0092] Step 1: Prepare related equipment.

[0093] The monitoring camera model that the present invention uses is DS-2CD2T55 (D) 5,000,000 infrared cylindrical network cameras.

[0094] The second step: video scene spatialization and vehicle detection.

[0095] Select the feature points to calibrate and correct the distortion of the camera, and establish the connection between the parking scene and the surveillance video. Select 5 feature points in the parking lot scene, and take the lower left corner of the current parking space line as the coordinate origin, the short side of the car as the x-axis, the long side of the parking space as the y-axis, and the z-axis perpendicular to the ground ( figure 2 ). Then ...

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Abstract

The invention discloses a method for realizing non-standard parking behavior identification by using a monitoring video. A high-point camera is combined with a GIS and a computer vision technology torealize rapid, accurate and real-time identification of various non-standard parking behaviors according to parking postures. The method mainly comprises the steps of constructing a non-standard parking behavior rule base, extracting spatialized parking space poses of a video scene based on an improved Vibe algorithm, an SSD convolutional neural network model and a CSRT tracking algorithm, and finally realizing accurate detection of non-standard parking behaviors in combination with a geometrical relationship between parking spaces and parking features. The invention further provides a devicebased on the method, and the invention is high in recognition precision and high in real-time performance.

Description

technical field [0001] The invention relates to an image recognition method, in particular to an irregular parking behavior recognition method and device. Background technique [0002] The phenomenon of irregular parking occurs from time to time, resulting in a series of phenomena such as vehicle scratches and traffic jams. At present, there are mainly two ways to detect irregular parking behaviors: manual identification and sensor identification. Manual identification is mainly through on-site law enforcement, which consumes a lot of manpower and material resources. Sensor detection methods can be divided into two types: intrusive detection and non-invasive detection. The magnetic induction coil method is the most widely used in intrusion detection. It uses coils and capacitive devices laid underground to generate an oscillating circuit. When a vehicle passes by, the metal parts will cause the circuit to change and thus be detected (Kong Q J.An Approach to Urban Traffic S...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06T7/136G06T7/194G06T7/215G06T7/246G06T7/80G06T5/00G08G1/017
CPCG06T7/136G06T7/194G06T7/215G06T7/246G06T7/80G06T5/006G08G1/0175G06T2207/10016G06T2207/20081G06T2207/20084G06T2207/30241G06V20/42G06V20/46G06V20/52G06V10/44G06V2201/08
Inventor 刘学军李展王美珍袁昊余锦慧
Owner NANJING NORMAL UNIVERSITY
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