Document dewarping via text-line based optimization

作者：

Highlights：

• Document dewarping is an important problem in camera-based OCR.

• We formulate the dewarping as an optimization problem.

• The proposed method performs dewarping in a fully automatic manner.

• The proposed method can handle various layouts of documents.

• Our method yields the improved OCR performances compared with other methods.

摘要

Highlights•Document dewarping is an important problem in camera-based OCR.•We formulate the dewarping as an optimization problem.•The proposed method performs dewarping in a fully automatic manner.•The proposed method can handle various layouts of documents.•Our method yields the improved OCR performances compared with other methods.

论文关键词：Document image,Document rectification,Document dewarping,Generalized cylindrical surface,Optical character recognition,Text-line based dewarping

论文评审过程：Received 1 November 2014, Revised 9 April 2015, Accepted 27 April 2015, Available online 9 May 2015, Version of Record 16 July 2015.

论文官网地址：https://doi.org/10.1016/j.patcog.2015.04.026