News Archives - Page 13 of 17 - IMPACT Centre of Competence

BSB/ÖNB Demo Day – Videos online!

It took us a bit longer than expected, but all videos of our dual event “Turning Historical Documents into Digital Full Texts” (11 – 12 October 2011) are now online and embedded into the relevant blog posts. For the firstday, you’ll find them here on the IMPACT blog. For the second day, please visit the blog … Continue reading

IMPACT/myGrid Taverna Hackathon – Taverna Server as a Portal

Clemens Neudecker leads a session on using Taverna Server as a portal, using IMPACT workflows to demonstrate the functionality.

IMPACT Final conference

24-25 October the final conference of the IMPACT project took place at the British Library in London. The whole conference was blogged and photographed with presentations uploaded to Slideshare. These are also embedded within the IMPACT project blog at impactocr.wordpress.com

IMPACT Final Conference – Introduction to the IMPACT Centre of Competence

Aly Conteh (BL), Hildelies Balk-Pennington De Jongh (KB) and Lieke Ploeger (KB) introduced and launched the IMPACT Centre of Competence!

IMPACT Final Conference – Evaluation Tools, Ground Truth and Datasets: Stefan Pletschacher

Stefan Pletschacher (University of Salford) began by presenting an overview of the digitisation workflow and the issues at each stage. These stages are usually given as scanning (whatever goes wrong here is hard to recover later) image enhancement, layout analysis, OCR and post processing. He explained that you should evaluate at each step but should … Continue reading

IMPACT Final Conference – Experiences in Mass Digitisation with the California Digital Library

Paul Fogel, Technical Lead of the Mass Digitisation team at the California Digital Library (CDL), presented digitisation experiences and challenges faced by CDL when dealing with OCR document text extraction. Fogel emphasised the difficulties and obstacles posed by bad OCR during the mass indexing and digitisation processes of cultural records: marginalia, image-text misinterpretations and fonts, … Continue reading

IMPACT Final Conference – Case study: Scanning Parameters

Apostolos Antonacopoulos’ (University of Salford) session presented and analysed the effects of scanning parameters on OCR quality, as well as the issues regarding storage and maintenance costs for Content Holders. Different experiments were carried out in order to establish scanning effects on OCR quality, including colour vs greyscale vs bitonal, effects on resolution and the … Continue reading

IMPACT Final Conference – BL 24-25th October 2011 British Library

Today is the IMPACT Final Conference to be held at the British Library. The IMPACT team will be blogging summaries of all the main sessions. The programme is available from the IMPACT Web site.

Centre of Competence

Hildelies Balk – Pennington de Jongh from the Koninklijke Bibliotheek, the National Library of the Netherlands, and project leader of the IMPACT project, outlined the Centre of Competence and the services it will offer. The CoC will be tasked with sustaining the developments of the IMPACT project into the future, and will officially be opened at the … Continue reading

Evaluierungswerkzeuge

Stefan Pletschacher from the University of Salford presented methods to evaluate OCR results. For a proper evaluation, ‘ground truth’, that is almost 100% correct text is needed. But a big challenge lies in how to calculate the gravity of different kinds of errors. Will character or word accuracy be used? Do errors in heading count … Continue reading