Page segmentation using the description of the background
Computer Vision and Image Understanding - Special issue on document image understanding and retrieval
Segmentation of page images using the area Voronoi diagram
Computer Vision and Image Understanding - Special issue on document image understanding and retrieval
Feature Detection with Automatic Scale Selection
International Journal of Computer Vision
Fast Approximate Energy Minimization via Graph Cuts
IEEE Transactions on Pattern Analysis and Machine Intelligence
The Document Spectrum for Page Layout Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Cylindrical Surface Model to Rectify the Bound Document Image
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Machine Printed Text and Handwriting Identification in Noisy Document Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Flattening Curved Documents in Images
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Handwriting Segmentation Contest
ICDAR '07 Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 02
Script-Independent Text Line Segmentation in Freestyle Handwritten Documents
IEEE Transactions on Pattern Analysis and Machine Intelligence
Performance Evaluation and Benchmarking of Six-Page Segmentation Algorithms
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Two-Step Dewarping of Camera Document Images
DAS '08 Proceedings of the 2008 The Eighth IAPR International Workshop on Document Analysis Systems
Segmentation of Curled Textlines Using Active Contours
DAS '08 Proceedings of the 2008 The Eighth IAPR International Workshop on Document Analysis Systems
Coupled Snakelet Model for Curled Textline Segmentation of Camera-Captured Document Images
ICDAR '09 Proceedings of the 2009 10th International Conference on Document Analysis and Recognition
Composition of a dewarped and enhanced document image from two view images
IEEE Transactions on Image Processing
e-PCP: A robust skew detection method for scanned document images
Pattern Recognition
Textline information extraction from grayscale camera-captured document images
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Digitization of deformed documents using a high-speed multi-camera array
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part II
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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 processing. The proposed method can be applied to spatially varying states as well as invariant ones, so that general cases including images of complex layout, cameracaptured images, and handwritten ones can also be handled. Specifically, we find CCs (Connected Components) in a document image and assign a state to each of them. Then the states of CCs are estimated using an energy minimization framework, where the cost function is designed based on frequency domain analysis and minimized via graph-cuts. Using the estimated states, we also develop a new algorithm that performs text block identification and text line extraction. Roughly speaking, we can segment an image into text blocks by cutting the distant connections among the CCs (compared to the estimated interline spacing), and we can group the CCs into text lines using a bottom-up grouping along the estimated text line orientation. Experimental results on a variety of document images show that our method is efficient and provides promising results in several document image processing tasks.