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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Hauptverfasser: ZHANG PU, YANG KUNSONG, YOU YUCHEN, LIU YUNHUA, ZHENG YUANBIN, ZHANG WENJIAN, YUE JIANKUN, LI ZHUORAN, LAI JIANGYU, WANG SHUQING, FU TIANREN, WANG MIN, SUN QIUSHUANG, DENG ZEQUAN, FENG XIAO, LI YAOJIA, WENG ZIHAO, CHEN XIAOLONG, LUO JINGXIN, CHEN YIHUANG, CHEN XIAOQING, WANG WEIYIN, MA WEIDONG
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