Utilizing digital archives of historical documents is an important task for researchers of archaeology and history. We are providing a crossover retrieval method of character patterns as the concierge of the historical documents archives. The cros...
In ancient wooden tablet research, it is described about the possibility and subject how the method and style of information practical use change by introducing an information technology.
Adaptation of normalization process to historical mokkan images and update of support system to support reading historical mokkans
IPSJ SIG Notes (2013-CH-97(7)) 1-6 Jan 2013 [Refereed]
Character shapes extracted from historical documents with stains, damages and time-related degradations contain much noise. General-purpose image processing for noise reduction often shaves off the detail of the character shapes. We have implement...
In Nara National Research Institue for Cultural Properties, "Mokkan Jiten" and "Bokushodoki Jiten" are exhibited. In the development of them,we have confirmed the importance of reflecting the characteristic of each data on a database. The cooperat...
Character pattern retrieval in historical documents for seamless computing
Akihito Kitadai,Keiichiro Shirai,Satoshi Inoue,Noriko Kurushima,Hajime Baba ,Akihiro Watanabe,Masaki Nakagawa
2012(7) 85-92 Nov 2012 [Refereed]
Improvements of image processing and character pattern retrieval methods to support reading historical mokkans
Similarity evaluation for character pattern retrieval is feasible by using handwritten character recognition methods. However, too much deformation by non-linear normalization becomes a problem when the key of the retrieval is a character pattern ...
Technical report of IEICE. PRMU 105(615) 85-90 Feb 2006
Most of handwritten character patterns on wooden tablets are damaged. If a reader supplements information on missing part, damaged character patterns are better recognized. We propose a method that applies non-linear normalization and feature extr...
Technical report of IEICE. Thought and language 104(740) 169-174 Mar 2005
This paper describes a method of handwritten character pattern recognition for partially missing patterns on a Mokkan. "Mokkan" is a wooden tablet on which character patterns are written by a brush in India ink. Since unearthed mokkans have been s...
Technical report of IEICE. Thought and language 104(740) 163-168 Mar 2005
This paper presents a method to remove background color, texture and grain of a wooden tablet and extract handwritten characters written by a brush in black Indian ink. Smoothing removes texture and decreases its effect on handwriting extraction. ...
Technical report of IEICE. PRMU 104(742) 169-174 Mar 2005
This paper describes a method of handwritten character pattern recognition for partially missing patterns on a Mokkan. "Mokkan" is a wooden tablet on which character patterns are written by a brush in India ink. Since unearthed mokkans have been s...
Technical report of IEICE. PRMU 104(742) 163-168 Mar 2005
This paper presents a method to remove background color, texture and grain of a wooden tablet and extract handwritten characters written by a brush in black Indian ink. Smoothing removes texture and decreases its effect on handwriting extraction. ...
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