|Scene text recognition by learning co-occurrence of strokes based on spatiality embedded dictionary|
|Gao, Song; Wang, Chunheng; Xiao, Baihua; Shi, Cunzhao; Zhou, Wen; Zhang, Zhong
|发表期刊||IET COMPUTER VISION
|摘要||Text information contained in scene images is very helpful for high-level image understanding. In this study, the authors propose to learn co-occurrence of local strokes for scene text recognition by using a spatiality embedded dictionary (SED). Unlike spatial pyramid partitioning images into grids to incorporate spatial information, the authors SED associates every codeword with a particular response region and introduces more precise spatial information for robust character recognition. After localised soft coding and max pooling of the first layer, a sparse dictionary is learned to model co-occurrence of several local strokes, which further improves classification performance. Experimental results on two scene character recognition datasets ICDAR2003 and CHARS74 K demonstrate that their character recognition method outperforms state-of-the-art methods. Besides, competitive word recognition results are also reported for four benchmark word recognition datasets ICDAR2003, ICDAR2011, ICDAR2013 and street view text when combining their character recognition method with a conditional random field language model.|
Scene Text Recognition
High-level Image Understanding
Spatiality Embedded Dictionary
Robust Character Recognition
Localised Soft Coding
Chars74 k Dataset
|WOS标题词||Science & Technology
|WOS类目||Computer Science, Artificial Intelligence
; Engineering, Electrical & Electronic
|作者单位||Chinese Acad Sci, Inst Automat, State Key Lab Management & Control Complex Syst, Beijing, Peoples R China|
Gao, Song,Wang, Chunheng,Xiao, Baihua,et al. Scene text recognition by learning co-occurrence of strokes based on spatiality embedded dictionary[J]. IET COMPUTER VISION,2015,9(1):138-148.
Gao, Song,Wang, Chunheng,Xiao, Baihua,Shi, Cunzhao,Zhou, Wen,&Zhang, Zhong.(2015).Scene text recognition by learning co-occurrence of strokes based on spatiality embedded dictionary.IET COMPUTER VISION,9(1),138-148.
Gao, Song,et al."Scene text recognition by learning co-occurrence of strokes based on spatiality embedded dictionary".IET COMPUTER VISION 9.1(2015):138-148.