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Table Detection Using Boundary Refining via Corner Locating

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Pattern Recognition and Computer Vision (PRCV 2019)

Part of the book series: Lecture Notes in Computer Science ((LNIP,volume 11857))

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Abstract

Table detection based on bounding-box method has achieved remarkable results. However, there still exists inaccurate table boundary locating. In this paper, a table detection method is proposed. Firstly, coarse table detection is implemented through Faster R-CNN. Secondly, corner locating is implemented through RPN and refined through Fast R-CNN. Corner grouping and filtering are implemented through post-processing algorithms. Therefore, unreliable corners are filtered. Thirdly, table boundaries are refined via reliable corners. Experimental results show that the proposed method obviously improves the precision of table boundary locating. We test on ICDAR2017 POD dataset, our method achieves an F-measure of 95.3%. Compared to Faster R-CNN method, the proposed method significantly increases by 3.2% in F-measure. Moreover, our method increases by 3.3% at pixel-level localization.

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Acknowledgment

This work was supported by the Natural Science Foundation of Tianjin (Grant No. 18JCYBJC85000).

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Correspondence to Yuanping Zhu .

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Sun, N., Zhu, Y., Hu, X. (2019). Table Detection Using Boundary Refining via Corner Locating. In: Lin, Z., et al. Pattern Recognition and Computer Vision. PRCV 2019. Lecture Notes in Computer Science(), vol 11857. Springer, Cham. https://doi.org/10.1007/978-3-030-31654-9_12

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  • DOI: https://doi.org/10.1007/978-3-030-31654-9_12

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