Geometric rectification of document images using adversarial gated unwarping network

X Liu, G Meng, B Fan, S Xiang, C Pan - Pattern Recognition, 2020 - Elsevier
Document images captured in natural scenes with a hand-held camera often suffer from
geometric distortions and cluttered backgrounds. In this paper, we propose a simple yet …

Document dewarping via text-line based optimization

BS Kim, HI Koo, NI Cho - Pattern Recognition, 2015 - Elsevier
This paper presents a new document image dewarping method that removes geometric
distortions in camera-captured document images. The proposed method does not directly …

Goal-oriented rectification of camera-based document images

N Stamatopoulos, B Gatos, I Pratikakis… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
Document digitization with either flatbed scanners or camera-based systems results in
document images which often suffer from warping and perspective distortions that …

Robust document image dewarping method using text-lines and line segments

T Kil, W Seo, HI Koo, NI Cho - 2017 14Th IAPR international …, 2017 - ieeexplore.ieee.org
Conventional text-line based document dewarping methods have problems when handling
complex layout and/or very few text-lines. When there are few aligned text-lines in the …

Metric rectification of curved document images

G Meng, C Pan, S Xiang, J Duan… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
In this paper, we propose a metric rectification method to restore an image from a single
camera-captured document image. The core idea is to construct an isometric image mesh by …

Adaptive dewarping of severely warped camera-captured document images based on document map generation

CH Nachappa, NS Rani, PB Pati… - International Journal on …, 2023 - Springer
Automated dewarping of camera-captured handwritten documents is a challenging research
problem in Computer Vision and Pattern Recognition. Most available systems assume the …

Exploiting vector fields for geometric rectification of distorted document images

G Meng, Y Su, Y Wu, S Xiang… - Proceedings of the …, 2018 - openaccess.thecvf.com
This paper proposes a segment-free method for geometric rectification of a distorted
document image captured by a hand-held camera. The method can recover the 3D page …

[PDF][PDF] Document Image Dewarping using Deep Learning.

VKB Ramanna, SS Bukhari, A Dengel - ICPRAM, 2019 - pdfs.semanticscholar.org
The distorted images have been a major problem for Optical Character Recognition (OCR).
In order to perform OCR on distorted images, dewarping has become a principal …

Segmentation of text lines using multi-scale CNN from warped printed and handwritten document images

A Dutta, A Garai, S Biswas, AK Das - International Journal on Document …, 2021 - Springer
Paper documents are ideal sources of useful information and have a profound impact on
every aspect of human lives. These documents may be printed or handwritten and contain …

[PDF][PDF] Adaptive binarization of unconstrained hand-held camera-captured document images.

SS Bukhari, F Shafait, TM Breuel - J. Univers. Comput. Sci., 2009 - dll.seecs.nust.edu.pk
This paper presents a new adaptive binarization technique for degraded hand-held camera-
captured document images. The state-of-the-art locally adaptive binarization methods are …