Lexicon-free handwritten word spotting using character HMMs

被引：189

作者：

Fischer, Andreas ^{[1
]}

Keller, Andreas ^{[1
]}

Frinken, Volkmar ^{[1
]}

Bunke, Horst ^{[1
]}

机构：

[1] Univ Bern, Inst Comp Sci & Appl Math, CH-3012 Bern, Switzerland

来源：

PATTERN RECOGNITION LETTERS | 2012年 / 33卷 / 07期

基金：

瑞士国家科学基金会;

关键词：

Handwriting recognition; Keyword spotting; Hidden Markov Models; HIDDEN MARKOV-MODELS; RECOGNITION; ALGORITHM;

D O I：

10.1016/j.patrec.2011.09.009

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

For retrieving keywords from scanned handwritten documents, we present a word spotting system that is based on character Hidden Markov Models. In an efficient lexicon-free approach, arbitrary keywords can be spotted without pre-segmenting text lines into words. For a multi-writer scenario on the IAM off-line database as well as for two single writer scenarios on historical data sets, it is shown that the proposed learning-based system outperforms a standard template matching method. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：934 / 942

页数：9

共 47 条

[1] Word matching using single closed contours for indexing handwritten historical documents
Adamek, Tornasz
O'Connor, Noel E.
Smeaton, Alan F.
[J]. INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION, 2007, 9 (2-4) : 153 - 165
[2] [Anonymous], 1971, The SMART Retrieval System-Experiments in Automatic Document Processing
[3] [Anonymous], 2008, Proc. ICFHR
[4] Special issue on the analysis of historical documents
Antonacopoulos, Apostolos
Downton, Andy C.
[J]. INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION, 2007, 9 (2-4) : 75 - 77
[5] Barrett C, 1997, COMPUT APPL BIOSCI, V13, P191
[6] Bhardwaj A., 2008, 2nd Intl Workshop on Cross Lingual Information Access, P48
[7] Bunke H, 2007, ADV PATTERN RECOGNIT, P165, DOI 10.1007/978-1-84628-726-8_8
[8] Cao HG, 2007, PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON ADVANCES IN PATTERN RECOGNITION, P135
[9] Chan J., 2006, P IEEE C COMPUTER VI, P1455, DOI DOI 10.1109/CVPR.2006.269
[10] Chen F. R., 1993, ICASSP-93. 1993 IEEE International Conference on Acoustics, Speech, and Signal Processing (Cat. No.92CH3252-4), P1, DOI 10.1109/ICASSP.1993.319732

← 1 2 3 4 5 →