Title
SpottingNet: Learning the Similarity of Word Images with Convolutional Neural Network for Word Spotting in Handwritten Historical Documents
Abstract
Word spotting is a content-based retrieval process that obtains a ranked list of word image candidates similar to the query word in digital document images. In this paper, we present a convolutional neural network (CNN) based end-to-end approach for Query-by-Example (QBE) word spotting in handwritten historical documents. The presented models enable conjointly learning the representative word image descriptors and evaluating the similarity measure between word descriptors directly from the word image, which are the two crucial factors in this task. We propose a similarity score fusion method integrated with hybrid deep-learning classifica-tion and regression models to enhance word spotting perfor-mance. In addition, we present a sample generation method using location jitter to balance similar and dissimilar image pairs and enlarge the dataset. Experiments are conducted on the George Washington (GW) dataset without involving any recognition methods or prior word category information. Our experiments show that the proposed model yields a new state-of-the-art mean average precision (mAP) of 80.03%, significantly outperforming previous results.
Year
DOI
Venue
2016
10.1109/ICFHR.2016.0063
2016 15th International Conference on Frontiers in Handwriting Recognition (ICFHR)
Keywords
Field
DocType
word spotting,similarity learning,similarity score fusion,convolutional neural network
Similarity learning,Similarity measure,Convolutional neural network,Computer science,Digital document,Natural language processing,Artificial intelligence,Jitter,Artificial neural network,Spotting,Ranking,Pattern recognition,Speech recognition,Machine learning
Conference
ISSN
ISBN
Citations 
2167-6445
978-1-5090-0982-4
0
PageRank 
References 
Authors
0.34
12
5
Name
Order
Citations
PageRank
Zhuoyao Zhong1584.21
Weishen Pan2113.31
Lianwen Jin31337113.14
Harold Mouchère410714.46
Christian Viard-Gaudin544446.20