Nameplate automatic identification method and device, computer equipment and storage medium
The invention relates to an automatic nameplate recognition method and device, computer equipment and a storage medium. The method comprises the steps: obtaining a to-be-identified nameplate image; performing perspective transformation processing on the nameplate image to obtain a corrected image; e...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to an automatic nameplate recognition method and device, computer equipment and a storage medium. The method comprises the steps: obtaining a to-be-identified nameplate image; performing perspective transformation processing on the nameplate image to obtain a corrected image; extracting a character region in the corrected image to obtain a text image; based on convolutional recurrent neural network processing, performing conversion processing on the text image to obtain character information. According to the method, the perspective correction is performed on the nameplate image in the preprocessing stage to obtain the corrected image, and the accuracy of subsequent text recognition is improved. The text image in the corrected image is extracted through the text extraction box, the subsequent recognition range is narrowed, and the retrieval efficiency is improved. The convolutional network and the recurrent neural network are used to effectively identify the intrinsic context information |
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