Kangying Li ; Biligsaikhan Batjargal ; Akira Maeda - Character Segmentation in Asian Collector's Seal Imprints: An Attempt to Retrieval Based on Ancient Character Typeface

jdmdh:6102 - Journal of Data Mining & Digital Humanities, January 11, 2021, HistoInformatics - https://doi.org/10.46298/jdmdh.6102
Character Segmentation in Asian Collector's Seal Imprints: An Attempt to Retrieval Based on Ancient Character Typeface

Authors: Kangying Li ; Biligsaikhan Batjargal ORCID-iD; Akira Maeda

    Collector's seals provide important clues about the ownership of a book. They contain much information pertaining to the essential elements of ancient materials and also show the details of possession, its relation to the book, the identity of the collectors and their social status and wealth, amongst others. Asian collectors have typically used artistic ancient characters rather than modern ones to make their seals. In addition to the owner's name, several other words are used to express more profound meanings. A system that automatically recognizes these characters can help enthusiasts and professionals better understand the background information of these seals. However, there is a lack of training data and labelled images, as samples of some seals are scarce and most of them are degraded images. It is necessary to find new ways to make full use of such scarce data. While these data are available online, they do not contain information on the characters' position. The goal of this research is to assist in obtaining more labelled data through user interaction and provide retrieval tools that use only standard character typefaces extracted from font files. In this paper, a character segmentation method is proposed to predict the candidate characters' area without any labelled training data that contain character coordinate information. A retrieval-based recognition system that focuses on a single character is also proposed to support seal retrieval and matching. The experimental results demonstrate that the proposed character segmentation method performs well on Asian collector's seals, with 85% of the test data being correctly segmented.

    Volume: HistoInformatics
    Section: HistoInformatics
    Published on: January 11, 2021
    Accepted on: July 3, 2020
    Submitted on: February 13, 2020
    Keywords: Asian seal imprint,Ancient document image processing,Character segmentation,Asian seal imprint,[INFO]Computer Science [cs],[INFO.INFO-DL]Computer Science [cs]/Digital Libraries [cs.DL]

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