An end-to-end image text entity extraction method
CN115346218BActive Publication Date: 2026-04-03GUANGZHOU INSTITUTE OF TECHNOLOY XIDIAN UNIVERSITY
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-12
- Publication Date
- 2026-04-03
AI Technical Summary
Technical Problem
[0004]现有的技术在识别图片中的文字的重要的实体的时候,一般先通过图片文字识别的方法提取出图片中的文字,然后再利用命名实体识别的方法对提取出的文字进行命名实体识别,但是这样做识别效率低下,而且并不是端到端的训练方法,导致识别准确率较低
Benefits of technology
[0035]本发明的有益效果:本发明利用了卷积神经网络+bert模型+深层双向LSTM神经网络+CRF模型的网络架构,不仅能够处理图片中不定长的序列,而且也可以端到端进行训练,提高了模型的识别准确性和鲁棒性。
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Abstract
This invention discloses an end-to-end image text entity extraction method, comprising: Step 1: acquiring the image to be recognized, and extracting feature vectors from the image through the convolutional layer in a preset network model; Step 2: the encoding layer in the preset network model performs feature fusion on the extracted feature vectors from the image, fusing global knowledge into each feature vector to obtain global information, adding residuals, and then compressing the dimension through the feedforward layer in BERT to obtain the output feature dimension. The features output by BERT are then processed by a deep bidirectional LSTM neural network to extract text sequence information; Step 3: the decoding layer in the preset network model decodes the text sequence information in the encoding layer to obtain the final recognition result. This invention utilizes a network architecture of convolutional neural network + BERT model + deep bidirectional LSTM neural network + CRF model, which improves the recognition accuracy and robustness of the model.
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