Computer Science ›› 2022, Vol. 49 ›› Issue (9): 139-145.doi: 10.11896/jsjkx.220600032

• Computer Graphics & Multimedia • Previous Articles     Next Articles

Cross-image Text Reading Method Based on Text Line Matching

DAI Yu, XU Lin-feng   

  1. School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China
  • Received:2022-06-02 Revised:2022-07-08 Online:2022-09-15 Published:2022-09-09
  • About author:DAI Yu,born in 1998,Ph.D.His main research interests include text detection and text recognition.
    XU Lin-feng,born in 1976,Ph.D,asso-ciate professor.His main research in-terests include visual attention,saliency detection,image and video coding,visual signal processing,and multimedia communication system.
  • Supported by:
    National Natural Science Foundation of China(62071086),Sichuan Science and Technology Program(2021YFG0296) and Science and Technology Innovation(Seedling Project) Cultivation and Invention Creation Project in Sichuan Province(2021015).

Abstract: Reading text with a camera can help the computer understand the text content.However,due to the limited field of view of the camera and the complexity of Chinese text recognition,it is sometimes difficult for the computer to read complete text content from a single text image with the camera.Thus,we define the cross-image text reading task,which aims to read the complete text content of a pair of overlapping text images.For the cross-image text reading task,we propose the cross-image text reading method via text line matching.We first adopt a text detection network to crop text lines.Then,we design the text line matching network with the multi-head self-attention mechanism to predict the matching relationships of text lines.Finally,the editing-based text reading network is proposed to remove overlapping texts and read complete text content.We also construct the cross-image Chinese text reading(CCTR) dataset for training and evaluation.Experiment results on CCTR dataset demonstrate that the proposed method achieves higher reading performance than the pixel-level stitching and recognition methods,which proves the superiority of the proposed method.

Key words: Cross-image text reading, Cross-image Chinese text reading dataset, Text line matching, Editing-based text reading, Attention mechanism

CLC Number: 

  • TP391
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