Not registered? - Request an account here

Christian Clausner

Christian Clausner

Room 318, Peel Building

E-mail: c.clausner (append "@salford.ac.uk")

University of Salford
School of Science, Engineering & Environment
Salford
Greater Manchester, M5 4WT
United Kingdom

Tel: Tel: +44-(0)161-295 6749


Christian Clausner is a Research Fellow at the Pattern Recognition and Image Analysis (PRImA) research lab which is part of the School of Science, Engineering and Environment at the University of Salford, UK. He joined the research group in 2009. His main responsibilities are software engineering as well as general research, including publications. He has a PhD degree in computer science.


Research interest and software development skills

  • Document Analysis
  • Pattern Recognition
  • Image Processing
  • Digitisation
  • Optical Character Recognition
  • Performance Evaluation
  • Scientific Workflows
  • C++ and Java development
  • User interface design
  • Web application development
  • Web services
  • Mobile/wearable app development

Workshops and Conferences

  • HIP2019 - Program Chair
  • ICDAR-OST 2019 - Keynote Speaker


Publications for Christian Clausner

Refereed Papers

2021

A survey of OCR evaluation tools and metrics

C. Neudecker, K. Baierer, C. Clausner, A. Antonacopoulos, S. Pletschacher

In The 6th International Workshop on Historical Document Imaging and Processing (HIP '21). Association for Computing Machinery, New York, NY, USA, 13–18.

Details »  Download PDF 


2020

Flexible character accuracy measure for reading-order-independent evaluation

C. Clausner, S. Pletschacher, A. Antonacopoulos

Pattern Recognition Letters, Volume 131, March 2020, Pages 390-397

Details »  Download PDF 


2019

A cloud-hosted MapReduce architecture for syntactic parsing

Y. Woldemariam, S. Pletschacher, C. Clausner, J. Bass

Proceedings of EUROMICRO 45th Conference on Software Engineering and Advanced Applications (SEAA)

Details » 


Efficient and Effective OCR Engine Training

C. Clausner, A. Antonacopoulos, S. Pletschacher

International Journal on Document Analysis and Recognition (IJDAR), 23(1), 73-88

Details » 


ICDAR2019 Competition on Recognition of Early Indian Printed Documents – REID2019

C. Clausner, A. Antonacopoulos, T. Derrick, S. Pletschacher

Proceedings of the 15th International Conference on Document Analysis and Recognition (ICDAR2019), Sydney, Australia, September 2019, pp. 1527-1532

Details »  Download PDF 


ICDAR2019 Competition on Recognition of Documents with Complex Layouts – RDCL2019

C. Clausner, A. Antonacopoulos, S. Pletschacher

Proceedings of the 15th International Conference on Document Analysis and Recognition (ICDAR2019), Sydney, Australia, September 2019, pp. 1521-1526

Details »  Download PDF 


Crowdsourcing Historical Tabular Data – 1961 Census of England and Wales

C. Clausner, J. Hayes, A. Antonacopoulos

Proceedings of the 2019 Workshop on Historical Document Imaging and Processing (HIP2019), Sydney, Australia, September 2019, pp. 42-47

Details »  Download PDF 


Highlights of the novel Dewaterability Estimation Test (DET) Device

M. Scholz, S. Almuktar, C. Clausner, A. Antonacopoulos Miklas Scholz, Suhad Almuktar, Christian Clausner, Apostolos Antonacopoulos

Environmental Technology

Details »  Download PDF 


Towards the Extraction of Statistical Information from Digitised Numerical Tables - The Medical Officer of Health Reports Scoping Study

C. Clausner, A. Antonacopoulos, C. Henshaw, J. Hayes

Proceedings of Third International Conference on Digital Access to Textual Cultural Heritage (DATeCH 2019), Brussels, Belgium, 08 - 10 May 2019

Details »  Download PDF 


2018

ICFHR 2018 Competition on Recognition of Historical Arabic Scientific Manuscripts - RASM2018

C. Clausner, A. Antonacopoulos, N. McGregor

Proceedings of the 17th International Workshop on Frontiers in Handwriting Recognition (ICFHR2018), Niagara Falls, USA, August 2018, pp. 471-476

Details »  Download PDF 


Ontology and Framework for Semantic Labelling of Document Data and Software Methods

C. Clausner, A. Antonacopoulos

Proceedings of the 13th IAPR International Workshop on Document Analysis Systems (DAS2018), Vienna, Austria, April 24-27, 2018, pp. 73-78

Details »  Download PDF 


Continuous Competition on Recognition of Documents with Complex Layouts - RDCL

C. Clausner, A. Antonacopoulos

Short Paper Booklet of the 13th International Association for Pattern Recognition (IAPR) Workshop on Document Analysis Systems (DAS2018), Vienna, Austria, April 2018, pp. 19-20

Details »  Download PDF 


2017

Effective Geometric Restoration of Distorted Historical Document for Large-Scale Digitization

P. Yang, A. Antonacopoulos, C. Clausner, S. Pletschacher, J. Qi

IET Image Processing


ICDAR2017 Competition on Recognition of Early Indian Printed Documents – REID2017

C. Clausner, A. Antonacopoulos, T. Derrick, S. Pletschacher

Proceedings of the 14th International Conference on Document Analysis and Recognition (ICDAR2017), Kyoto, Japan, November 2017, pp. 1411-1416

Details »  Download PDF 


ICDAR2017 Competition on Recognition of Documents with Complex Layouts – RDCL2017

C. Clausner, A. Antonacopoulos, S. Pletschacher

Proceedings of the 14th International Conference on Document Analysis and Recognition (ICDAR2017), Kyoto, Japan, November 2017, pp. 1404-1410

Details »  Download PDF 


Creating a Complete Workflow for Digitising Historical Census Documents: Considerations and Evaluation

C. Clausner, J. Hayes, A. Antonacopoulos, S. Pletschacher

Proceedings of the 2017 Workshop on Historical Document Imaging and Processing (HIP2017), Kyoto, Japan, November 2017, pp. 83-88

Details »  Download PDF 


Unearthing the Recent Past: Digitising and Understanding Statistical Information from Census Tables

C. Clausner, J. Hayes, A. Antonacopoulos, S. Pletschacher

Proceedings of Second International Conference on Digital Access to Textual Cultural Heritage (DATeCH 2017), Goettingen, Germany, 01 - 02 June 2017

Details »  Download PDF 


2016

Quality Prediction System for Large-Scale Digitisation Workflows

C. Clausner, S. Pletschacher, A. Antonacopoulos

Proceedings of the 12th IAPR International Workshop on Document Analysis Systems (DAS2016), Santorini, Greece, April 11-14, 2016

Details »  Download PDF 


2015

The ENP Image and Ground Truth Dataset of Historical Newspapers

C. Clausner, C. Papadopoulos, S. Pletschacher, A. Antonacopoulos

Proceedings of the 13th International Conference on Document Analysis and Recognition (ICDAR2015), Nancy, France, August 2015, pp. 931-935

Details »  Download PDF 


ICDAR2015 Competition on Recognition of Documents with Complex Layouts – RDCL2015

A. Antonacopoulos, C. Clausner, C. Papadopoulos, S. Pletschacher

Proceedings of the 13th International Conference on Document Analysis and Recognition (ICDAR2015), Nancy, France, August 2015, pp. 1151-1155

Details »  Download PDF 


Europeana Newspapers OCR Workflow Evaluation

S. Pletschacher, C. Clausner, A. Antonacopoulos

Proceedings of the 2015 Workshop on Historical Document Imaging and Processing (HIP2015), Nancy, France, August 2015, pp. 39-46

Details »  Download PDF 


2014

Document Representation Refinement for Precise Region Description

C. Clausner, S. Pletschacher, A. Antonacopoulos

Proceedings of the First International Conference on Digital Access to Textual Cultural Heritage (DATeCH2014), Madrid, Spain, May 2014, pp. 9-13

Details »  Download PDF 


Efficient OCR Training Data Generation with Aletheia

C. Clausner, S. Pletschacher, A. Antonacopoulos

Short Paper Booklet of the 11th International Association for Pattern Recognition (IAPR) Workshop on Document Analysis Systems (DAS2014), Tours, France, April 2014, pp. 19-20

Details »  Download PDF 


2013

The Significance of Reading Order in Document Recognition and its Evaluation

C. Clausner, S. Pletschacher, A. Antonacopoulos

Proceedings of the 12th International Conference on Document Analysis and Recognition (ICDAR2013), Washington DC, USA, August 2013, pp. 688-692

Details »  Download PDF 


ICDAR2013 Competition on Historical Newspaper Layout Analysis – HNLA2013

A. Antonacopoulos, C. Clausner, C. Papadopoulos, S. Pletschacher

Proceedings of the 12th International Conference on Document Analysis and Recognition (ICDAR2013), Washington DC, USA, August 2013, pp. 1486-1490

Details »  Download PDF 


ICDAR2013 Competition on Historical Book Recognition – HBR2013

A. Antonacopoulos, C. Clausner, C. Papadopoulos, S. Pletschacher

Proceedings of the 12th International Conference on Document Analysis and Recognition (ICDAR2013), Washington DC, USA, August 2013, pp. 1491-1495

Details »  Download PDF 


The IMPACT Dataset of Historical Document Images

C. Papadopoulos, S. Pletschacher, C. Clausner, A. Antonacopoulos

Proceedings of the 2013 Workshop on Historical Document Imaging and Processing (HIP2013), Washington DC, USA, August 2013, pp. 123-130

Details »  Download PDF 


2012

A robust hybrid approach for text line segmentation in historical documents

C. Clausner, A. Antonacopoulos, S. Pletschacher

Proceedings of the 21st International Conference on Pattern Recognition (ICPR2012), Tsukuba, Japan, November 11-15, 2012, IEEE-CS Press, pp. 335-338

Details »  Download PDF 


2011

Scenario Driven In-Depth Performance Evaluation of Document Layout Analysis Methods

C. Clausner, S. Pletschacher, A. Antonacopoulos

Proceedings of the 11th International Conference on Document Analysis and Recognition (ICDAR2011), Beijing, China, September 2011, pp. 1404-1408

Details »  Download PDF 


Aletheia - An Advanced Document Layout and Text Ground-Truthing System for Production Environments

C. Clausner, S. Pletschacher, A. Antonacopoulos

Proceedings of the 11th International Conference on Document Analysis and Recognition (ICDAR2011), Beijing, China, September 2011, pp. 48-52

Details »  Download PDF 


Historical Document Layout Analysis Competition

A. Antonacopoulos, C. Clausner, C. Papadopoulos, S. Pletschacher

Proceedings of the 11th International Conference on Document Analysis and Recognition (ICDAR2011), Beijing, China, September 2011, pp. 1516-1520

Details »  Download PDF 


Grid-Based Modelling and Correction of Arbitrarily Warped Historical Document Images for Large-Scale Digitisation

P. Yang, A. Antonacopoulos, C. Clausner, S. Pletschacher

Proceedings of the 2011 Workshop on Historical Document Imaging and Processing (HIP2011), Beijing, China, September 2011, pp. 106-111

Details »  Download PDF