Outputs (21)

Effective geometric restoration of distorted historical documents for large-scale digitization (2017)
Journal Article
Yang, P., Antonacopoulos, A., Clausner, C., Pletschacher, S., & Qi, J. (2017). Effective geometric restoration of distorted historical documents for large-scale digitization. IET Image Processing, 11(10), 841-853. https://doi.org/10.1049/iet-ipr.2016.0973

Due to storage conditions and material’s non-planar shape, geometric distortion of the 2-D content is widely present in scanned document images. Effective geometric restoration of these distorted document images considerably increases character recog... Read More about Effective geometric restoration of distorted historical documents for large-scale digitization.

Quality prediction system for large-scale digitisation workflows (2016)
Presentation / Conference Contribution

The feasibility of large-scale OCR projects can so far only be assessed by running pilot studies on subsets of the target document collections and measuring the success of different workflows based on precise ground truth, which can be very costly to... Read More about Quality prediction system for large-scale digitisation workflows.

Europeana newspapers OCR workflow evaluation (2015)
Presentation / Conference Contribution

This paper summarises the final performance evaluation results of the OCR workflow which was employed for large-scale production in the Europeana Newspapers project. It gives a detailed overview of how the involved software performed... Read More about Europeana newspapers OCR workflow evaluation.

ICDAR2015 competition on recognition of documents with complex layouts - RDCL2015 (2015)
Book Chapter
Antonacopoulos, A., Clausner, C., Papadopoulos, C., & Pletschacher, S. (2015). ICDAR2015 competition on recognition of documents with complex layouts - RDCL2015. In 2015 13th International Conference on Document Analysis and Recognition (ICDAR) (1151-1155). IEEE. https://doi.org/10.1109/ICDAR.2015.7333941

This paper presents an objective comparative evaluation of page segmentation and region classification methods for documents with complex layouts. It describes the competition (modus operandi, dataset and evaluation methodology) held in the context o... Read More about ICDAR2015 competition on recognition of documents with complex layouts - RDCL2015.

Document representation refinement for precise region description (2014)
Presentation / Conference Contribution

Precise description of layout entities (content regions on a page) is crucial for all but the most trivial document analysis and recognition applications. The output of layout analysis methods and state-of-the-art OCR systems varies significantly, fr... Read More about Document representation refinement for precise region description.

The IMPACT dataset of historical document images (2013)
Presentation / Conference Contribution

Representative and comprehensive datasets are a prerequisite for any research activity, from studying specific types of problems through training of algorithms to evaluating results of actual implementations. This paper describes an invaluable resour... Read More about The IMPACT dataset of historical document images.

The significance of reading order in document recognition and its evaluation (2013)
Presentation / Conference Contribution

Reading order detection and representation is an important task in many digitisation scenarios involving the preservation of the logical structure of a document. The corresponding need for the evaluation of reading order results generated by layout a... Read More about The significance of reading order in document recognition and its evaluation.

Aletheia - An advanced document layout and text ground-truthing system for production environments (2011)
Presentation / Conference Contribution

Large-scale digitisation has led to a number of new possibilities with regard to adaptive and learning based methods in the field of Document Image Analysis and OCR. For ground truth production of large corpora, however, there is still a gap in terms... Read More about Aletheia - An advanced document layout and text ground-truthing system for production environments.

Aletheia - An advanced document layout and text ground-truthing system for production environments (2011)
Presentation / Conference Contribution

Large-scale digitisation has led to a number of new possibilities with regard to adaptive and learning based methods in the field of Document Image Analysis and OCR. For ground truth production of large corpora, however, there is still a gap in terms... Read More about Aletheia - An advanced document layout and text ground-truthing system for production environments.

The PAGE (Page Analysis and Ground-Truth Elements) format framework (2010)
Presentation / Conference Contribution

There is a plethora of established and proposed document representation formats but none that can adequately support individual stages within an entire sequence of document image analysis methods (from document image enhancement to layout analysis to... Read More about The PAGE (Page Analysis and Ground-Truth Elements) format framework.