Title :
Ground-Truth Production in the Transcriptorium Project
Author :
Gatos, Basilis ; Louloudis, Georgios ; Causer, Tim ; Grint, Kris ; Romero, Veronica ; Sanchez, J.A. ; Toselli, Alejandro Hector ; Vidal, Enrique
Author_Institution :
Inst. of Inf. & Telecommun., Nat. Centre for Sci. Res. Demokritos, Athens, Greece
Abstract :
Tran Scriptorium is a 3-years project that aims to develop innovative, cost-effective solutions for the indexing, search and full transcription of historical handwritten document images, using Handwritten Text Recognition (HTR) technology. The production of ground-truth (GT) of a dataset of handwritten document images is among the first tasks. We address novel approaches for the faster production of this GT based on crowd-sourcing and on prior-knowledge methods. We also address here a novel low-cost semi-supervised procedure for obtaining pairs of correct line-level aligned detected/extracted text line images and text line transcripts, specially suitable for training models of the HTR technology employed in Tran Scriptorium.
Keywords :
document image processing; handwritten character recognition; indexing; information retrieval; HTR technology; Transcriptorium Project; crowd-sourcing; ground-truth production; handwritten text recognition; historical handwritten document image full transcription; historical handwritten document image indexing; historical handwritten document image searching; text line image detection; text line image extraction; text line transcripts; Hidden Markov models; Image segmentation; Layout; Production; Standards; Training; Document Image Processing; Handwritten Text Recognition Technology; alignment between ground-truth transcripts and text line images; tranScriptorium Union Europe Project;
Conference_Titel :
Document Analysis Systems (DAS), 2014 11th IAPR International Workshop on
Conference_Location :
Tours
Print_ISBN :
978-1-4799-3243-6
DOI :
10.1109/DAS.2014.23
