Semi-Supervised Scene Text Recognition

doi:10.1109/TIP.2021.3051485

	Semi-Supervised Scene Text Recognition
	Gao, Yunze1,2 ; Chen, Yingying1,2 ; Wang, Jinqiao1,2 ; Lu, Hanqing1,2
发表期刊	IEEE TRANSACTIONS ON IMAGE PROCESSING
ISSN	1057-7149
	2021
卷号	30 页码:3005-3016
通讯作者	Chen, Yingying(yingying.chen@nlpr.ia.ac.cn)
摘要	Scene text recognition has been widely researched with supervised approaches. Most existing algorithms require a large amount of labeled data and some methods even require character-level or pixel-wise supervision information. However, labeled data is expensive, unlabeled data is relatively easy to collect, especially for many languages with fewer resources. In this paper, we propose a novel semi-supervised method for scene text recognition. Specifically, we design two global metrics, i.e., edit reward and embedding reward, to evaluate the quality of generated string and adopt reinforcement learning techniques to directly optimize these rewards. The edit reward measures the distance between the ground truth label and the generated string. Besides, the image feature and string feature are embedded into a common space and the embedding reward is defined by the similarity between the input image and generated string. It is natural that the generated string should be the nearest with the image it is generated from. Therefore, the embedding reward can be obtained without any ground truth information. In this way, we can effectively exploit a large number of unlabeled images to improve the recognition performance without any additional laborious annotations. Extensive experimental evaluations on the five challenging benchmarks, the Street View Text, IIIT5K, and ICDAR datasets demonstrate the effectiveness of the proposed approach, and our method significantly reduces annotation effort while maintaining competitive recognition performance.
关键词	Text recognition Reinforcement learning Training Feature extraction Annotations Probability distribution Predictive models Semi-supervised scene text recognition embedding reinforcement learning
DOI	10.1109/TIP.2021.3051485
收录类别	SCI
语种	英语
资助项目	Research and Development Projects in the Key Areas of Guangdong Province[2019B010153001] ; National Natural Science Foundation of China[61772527] ; National Natural Science Foundation of China[61806200] ; National Natural Science Foundation of China[62006230] ; National Natural Science Foundation of China[61876086]
项目资助者	Research and Development Projects in the Key Areas of Guangdong Province ; National Natural Science Foundation of China
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:000621399700002
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
七大方向——子方向分类	图像视频处理与分析
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/43345
专题	紫东太初大模型研究中心_图像与视频分析
通讯作者	Chen, Yingying
作者单位	1.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Artificial Intelligence, Beijing 100049, Peoples R China
第一作者单位	模式识别国家重点实验室
通讯作者单位	模式识别国家重点实验室
推荐引用方式 GB/T 7714	Gao, Yunze,Chen, Yingying,Wang, Jinqiao,et al. Semi-Supervised Scene Text Recognition[J]. IEEE TRANSACTIONS ON IMAGE PROCESSING,2021,30:3005-3016.
APA	Gao, Yunze,Chen, Yingying,Wang, Jinqiao,&Lu, Hanqing.(2021).Semi-Supervised Scene Text Recognition.IEEE TRANSACTIONS ON IMAGE PROCESSING,30,3005-3016.
MLA	Gao, Yunze,et al."Semi-Supervised Scene Text Recognition".IEEE TRANSACTIONS ON IMAGE PROCESSING 30(2021):3005-3016.