A comprehensive survey of mostly textual document segmentation algorithms since 2008

S Eskenazi, P Gomez-Krämer, JM Ogier - Pattern recognition, 2017 - Elsevier
In document image analysis, segmentation is the task that identifies the regions of a
document. The increasing number of applications of document analysis requires a good …

Text-line extraction in handwritten chinese documents based on an energy minimization framework

HI Koo, NI Cho - IEEE Transactions on Image Processing, 2011 - ieeexplore.ieee.org
Text-line extraction in unconstrained handwritten documents remains a challenging problem
due to nonuniform character scale, spatially varying text orientation, and the interference …

[HTML][HTML] 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 …

Persian printed text line detection based on font size

A Fateh, M Rezvani, A Tajary, M Fateh - Multimedia Tools and …, 2023 - Springer
Text line segmentation is an essential step in the process of converting document images
into text. In OCR systems, text line segmentation affects the character segmentation stage …

State estimation in a document image and its application in text block identification and text line extraction

HI Koo, NI Cho - Computer Vision–ECCV 2010: 11th European …, 2010 - Springer
This paper proposes a new approach to the estimation of document states such as interline
spacing and text line orientation, which facilitates a number of tasks in document image …

A new efficient binarization method: application to degraded historical document images

Z Hadjadj, M Cheriet, A Meziane, Y Cherfa - Signal, Image and Video …, 2017 - Springer
Binarization is an important step in reading text documents automatically through optical
character recognition. Old document images often suffer from degradations that make their …

[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 …

Text-line detection in camera-captured document images using the state estimation of connected components

HI Koo - IEEE Transactions on Image Processing, 2016 - ieeexplore.ieee.org
Camera-based text processing has attracted considerable attention and numerous methods
have been proposed. However, most of these methods have focused on the scene text …

Coupled snakelets for curled text-line segmentation from warped document images

SS Bukhari, F Shafait, TM Breuel - International Journal on Document …, 2013 - Springer
Camera-captured, warped document images usually contain curled text-lines because of
distortions caused by camera perspective view and page curl. Warped document images …

Textline information extraction from grayscale camera-captured document images

SS Bukhari, TM Breuel, F Shafait - 2009 16th IEEE …, 2009 - ieeexplore.ieee.org
Cameras offer flexible document imaging, but with uneven shading and non-planar page
shape. Therefore camera captured documents need to go through dewarping before being …