Two-stage approach to keyword spotting in handwritten documents

2013 ◽  
Author(s):  
Mehdi Haji ◽  
Mohammad R. Ameri ◽  
Tien D. Bui ◽  
Ching Y. Suen ◽  
Dominique Ponson
Keyword(s):  
Keyword Spotting ◽  
Two Stage ◽  
Handwritten Documents

Development of a Two-Stage Segmentation-Based Word Searching Method for Handwritten Document Images

2018 ◽  
Vol 29 (1) ◽  
pp. 719-735 ◽  
Author(s):  
Samir Malakar ◽  
Manosij Ghosh ◽  
Ram Sarkar ◽  
Mita Nasipuri
Keyword(s):  
Feature Vector ◽  
Binary Classification ◽  
Research Problem ◽  
Document Image ◽  
Feature Descriptor ◽  
Keyword Spotting ◽  
Two Stage ◽  
Handwritten Documents ◽  
And Gender ◽  
Searching Method

Abstract Word searching or keyword spotting is an important research problem in the domain of document image processing. The solution to the said problem for handwritten documents is more challenging than for printed ones. In this work, a two-stage word searching schema is introduced. In the first stage, all the irrelevant words with respect to a search word are filtered out from the document page image. This is carried out using a zonal feature vector, called pre-selection feature vector, along with a rule-based binary classification method. In the next step, a holistic word recognition paradigm is used to confirm a pre-selected word as search word. To accomplish this, a modified histogram of oriented gradients-based feature descriptor is combined with a topological feature vector. This method is experimented on a QUWI English database, which is freely available through the International Conference on Document Analysis and Recognition 2015 competition entitled “Writer Identification and Gender Classification.” This technique not only provides good retrieval performance in terms of recall, precision, and F-measure scores, but it also outperforms some state-of-the-art methods.

scholarly journals Filters for graph-based keyword spotting in historical handwritten documents

2020 ◽  
Vol 134 ◽  
pp. 125-134 ◽  
Author(s):  
Michael Stauffer ◽  
Andreas Fischer ◽  
Kaspar Riesen
Keyword(s):  
Keyword Spotting ◽  
Handwritten Documents

Phone mismatch penalty matrices for two-stage keyword spotting via multi-pass phone recognizer

2010 ◽  
Author(s):  
Chang Woo Han ◽  
Shin Jae Kang ◽  
Chul Min Lee ◽  
Nam Soo Kim
Keyword(s):  
Keyword Spotting ◽  
Two Stage
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