Inicio  /  Future Internet  /  Vol: 14 Par: 6 (2022)  /  Artículo
ARTÍCULO
TITULO

Toward Semi-Supervised Graphical Object Detection in Document Images

Goutham Kallempudi    
Khurram Azeem Hashmi    
Alain Pagani    
Marcus Liwicki    
Didier Stricker and Muhammad Zeshan Afzal    

Resumen

The graphical page object detection classifies and localizes objects such as Tables and Figures in a document. As deep learning techniques for object detection become increasingly successful, many supervised deep neural network-based methods have been introduced to recognize graphical objects in documents. However, these models necessitate a substantial amount of labeled data for the training process. This paper presents an end-to-end semi-supervised framework for graphical object detection in scanned document images to address this limitation. Our method is based on a recently proposed Soft Teacher mechanism that examines the effects of small percentage-labeled data on the classification and localization of graphical objects. On both the PubLayNet and the IIIT-AR-13K datasets, the proposed approach outperforms the supervised models by a significant margin in all labeling ratios (1%, 5%" role="presentation">(1%, 5%(1%, 5% ( 1 % ,   5 % , and 10%)" role="presentation">10%)10%) 10 % ) . Furthermore, the 10%" role="presentation">10%10% 10 % PubLayNet Soft Teacher model improves the average precision of Table, Figure, and List by +5.4,+1.2" role="presentation">+5.4,+1.2+5.4,+1.2 + 5.4 , + 1.2 , and +3.2" role="presentation">+3.2+3.2 + 3.2 points, respectively, with a similar total mAP as the Faster-RCNN baseline. Moreover, our model trained on 10%" role="presentation">10%10% 10 % of IIIT-AR-13K labeled data beats the previous fully supervised method +4.5" role="presentation">+4.5+4.5 + 4.5 points.

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