Parking lot ground Chinese sign recognition method and system and storage medium

Abstract

The invention discloses a parking lot ground Chinese sign recognition method and system and a storage medium, and the method comprises the steps: obtaining a parking space image, and carrying out thepreprocessing; performing Chinese character recognition on the preprocessed image by using a neural network model; when the Chinese character does not exist in the image, enabling the neural network model to output an identification result without the Chinese character; when the Chinese characters exist in the image, enabling the neural network model to extract a text region image containing the Chinese characters and outputsthe text region image; when the neural network model outputs a recognition result without Chinese characters, ending the process; and when the neural network model outputsa text region image, performing text correction on the text region image, performing character segmentation on the corrected text region image to obtain a plurality of character region images, classifying the plurality of character region images, and outputting an identification result of the ground Chinese sign. According to the invention, the ground Chinese sign of the parking lot can be identified, and the vehicle is prevented from being parked in an improper area during parking.

Description

technical field [0001] The invention relates to the technical field of intelligent driving perception, in particular to a method for recognizing Chinese signs on the ground of a parking lot, a system thereof, and a storage medium. Background technique [0002] For automatic driving functions in parking lot scenarios such as autonomous valet parking, the vehicle's perception of the surrounding environment of the parking lot (parking spaces, lane lines, obstacles, and various traffic signs and ground signs) will directly determine the parking success rate and accuracy. Among these environmental information, ground marks are one of the most easily overlooked important information. For many domestic parking lots, ground signs are often used to provide some restrictions on vehicle driving and parking, and there are various types, especially some ground signs with Chinese fonts, such as figure 1 Disabled parking spaces shown, figure 2 EV charging bays shown, image 3 The spec...

AI Technical Summary

Problems solved by technology

For many domestic parking lots, ground signs are often used to provide some restrictions on vehicle driving and parking, and there are various types, especially some ground signs with Chinese fonts, such as figure 1 Disabled parking spaces shown, figure 2 EV charging bays shown, image 3 The special parking spaces for shared cars shown, etc.; the existing recognition models often do not optimize the scenes of these Chinese ground signs, resulting in parking the car in an inappropriate area

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