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Text Detection and Pose Estimation for a Reading Robot

Autor: Lambert Schomaker, M. Bulacu, Nobuo Ezaki

Publikováno v: Motion Planning

This chapter presents two basic processes needed in a vision system for a mobile robot which is capable of reading the textual content encountered in its environment. We describe the general system outline and we present the structure and the experim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eda4644f4d78f885560a01ceacafd06e
http://www.intechopen.com/articles/show/title/text_detection_and_pose_estimation_for_a_reading_robot

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Writer identification using directional ink-trace width measurements

Autor: Lambert Schomaker, Axel Brink, J. Smit, M. Bulacu

Publikováno v: Pattern recognition, 45(1), 162-171. ELSEVIER SCI LTD

As suggested by modern paleography, the width of ink traces is a powerful source of information for off-line writer identification, particularly if combined with its direction. Such measurements can be computed using simple, fast and accurate methods

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2e37d468d530a7571b8ea508e801532
https://doi.org/10.1016/j.patcog.2011.07.005

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Effects of pulling velocity and temperature revealed in polymer pull-out simulations

Autor: van der Erik Giessen, M. Bulacu

Publikováno v: Europhysics Letters, 93(6):63001. IOP PUBLISHING LTD

We present a molecular dynamics study of pulling-out polymer chains from ensembles of entangled polymers, with possible applications in single-molecule pulling techniques. The effects of pulling velocity and temperature are identified separately in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::effbd2b4ea6e8be4b7c797939a80bed4
https://research.rug.nl/en/publications/17b9f771-4107-462f-976b-999e381e3b42

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Recognition of handwritten numerical fields in a large single-writer historical collection

Autor: Lambert Schomaker, Tijn van der Zant, M. Bulacu, Axel Brink

Publikováno v: STARTPAGE=808;ENDPAGE=812;TITLE=2009 10th International Conference on Document Analysis and Recognition
ICDAR

This paper presents a segmentation-based handwriting recognizer and the performance that it achieves on the numerical fields extracted from a large single-writer historical collection. Our recognizer has the particularity that it uses morphing during

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09de032b175c6e423810e00b1f7943d6
https://research.rug.nl/en/publications/bc331002-9a78-42ac-b15b-98b509cafecb

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Automatic writer identification using connected-component contours and edge-based features of uppercase Western script

Autor: Lambert Schomaker, M. Bulacu

Publikováno v: Ieee transactions on pattern analysis and machine intelligence, 26(6), 787-798. IEEE COMPUTER SOC
University of Groningen

In this paper, a new technique for offline writer identification is presented, using connected-component contours (COCOCOs or CO/sup 3/s) in uppercase handwritten samples. In our model, the writer is considered to be characterized by a stochastic pat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91d2cd86ed53e70ead1656e5f57fad2c
https://pubmed.ncbi.nlm.nih.gov/18579938

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How Much Handwritten Text Is Needed for Text-Independent Writer Verification and Identification

Autor: Axel Brink, M. Bulacu, Lambert Schomaker

Publikováno v: 19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOLS 1-6, 2519-2522
STARTPAGE=2519;ENDPAGE=2522;TITLE=19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOLS 1-6
ResearcherID
ICPR
University of Groningen

The performance of off-line text-independent writer verification and identification increases when the documents contain more text. This relation was examined by repeatedly conducting writer verification and identification performance tests while gra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a4fbda541505050bf1aea60ff02988c
https://research.rug.nl/en/publications/9acc05f5-049e-4ffe-8b12-f765e370552f

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Text-Independent Writer Identification and Verification on Offline Arabic Handwriting

Autor: M. Bulacu, Lambert Schomaker, Axel Brink

Publikováno v: ICDAR
University of Groningen
ResearcherID

In this paper, we evaluate the performance on Arabic handwriting of the text-independent writer identification methods that we developed and tested on Western script in recent years. We use the IFN/ENIT data in the experiments reported here and our t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c10c86dbd70a03ca65bb23890c6fdd9
https://doi.org/10.1109/icdar.2007.4377019

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Layout Analysis of Handwritten Historical Documents for Searching the Archive of the Cabinet of the Dutch Queen

Autor: Lambert Schomaker, T. van der Zant, R. van Koert, M. Bulacu

Publikováno v: ICDAR
University of Groningen

In this paper, we describe the structure and the performance of a layout analysis system developed for processing the handwritten documents contained in a large historical collection of very high importance in the Netherlands. We introduce a method b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::688b9ff1074fac425de67d9e0c74472c
https://doi.org/10.1109/icdar.2007.4378732

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Towards Explainable Writer Verification and Identification Using Vantage Writers

Autor: M. Bulacu, Lambert Schomaker, Axel Brink

Publikováno v: ICDAR
University of Groningen
ResearcherID

In this paper, a new method for off-line writer verification and identification is proposed which encodes writer features as a mix of typical handwriting styles, written by so-called vantage writers. Since their handwriting can be shown to the user,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbdd228cf7c10f3c8fdefd8bfd4f7e02
https://doi.org/10.1109/icdar.2007.4377030

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Using codebooks of fragmented connected-component contours in forensic and historic writer identification

Autor: Katrin Franke, Lambert Schomaker, M. Bulacu

Publikováno v: Pattern Recognition Letters, 28(6), 719-727. ELSEVIER SCIENCE BV

Recent advances in 'off-line' writer identification allow for new applications in handwritten text retrieval from archives of scanned historical documents. This paper describes new algorithms for forensic or historical writer identification, using th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ee339e196a7b3a5a14d4997409b504c
https://hdl.handle.net/11370/7a99d19c-5bbd-4c24-862b-8aafdb5537b6

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