电子工程系

Department of Electronic Engineering 

PENG Liangrui

Ph. D., Associate Professor, Ph. D. Supervisor
Address:Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China
Office: Rohm BLDG. 6-303
Tel: +86-10-62773710 ext. 308


Email: plr@ocrserv.ee.tsinghua.edu.cn
Website: http://tac.ee.tsinghua.edu.cn

 

 

Education background

Ph. D. 2010 Tsinghua University, Beijing, China 
Master 1997 Huazhong University of Science and Technology, Wuhan, Hubei, China
Bachelor 1994 Huazhong University of Science and Technology, Wuhan, Hubei, China

 

Experience

11/2010 - present Associate Professor, Dept. of Electronic Engineering, Tsinghua Univ.
04/1997 - 11/2010 Assistant Professor, Dept. of Electronic Engineering, Tsinghua Univ.

Teaching

Media and Cognition, undergraduate core course, 2012 – present
Multimedia and Network, graduate course, 2005 - present

 

 

Concurrent Academic

Member, IEEE
Member, ACM

 

Areas of Research Interests/ Research Projects

Machine Learning, Image & document information processing

 

 

Research Status

“Camera-based Multilingual Document Image Recognition Theory and Method”, National Science Foundation of China, 2017-2019
“Recurrent Neural Network based Handwritten Character Recognition”, Toshiba, 2016
“Convolutional Neural Network based Handwritten Character Recognition”, Toshiba, 2015
“Handwritten Historical Chinese Document Recognition”, National Science Foundation of China NSFC-ANR China-France Joint Project, 2013-2015
“Multilingual Ethnic document recognition and understanding”, National Science Foundation of China (Key Program), 2011-2014
“Markov Random Field Modeling for Multilingual Document Recognition”, National Science Foundation of China, 2009-2011
Multilingual OCR technology and application, 2009-2010
Multilingual writer identification, 2008
Printed Arabic document recognition, Nuance, 2003-2006
Handwritten Arabic document recognition, Nuance, 2004-2005
Logical structure extraction of Chinese documents, Fuji-Xerox, 2004-2005
Document layout representation based on XML, Ricoh, 2005
Chinese historical document recognition, 2003
Asian languages (Chinese, Japanese, Korean) document recognition, Microsoft & Nuance, 2001-2006

 

Honors And Awards

“CNN (Convolutional Neural Network) based Transfer Learning for Historical Chinese Character Recognition” won DAS 2016 Nakano Best Paper Award in April 2016
“Gaussian Process Style Transfer Mapping for Historical Chinese Character Recognition” written by master student FENG Jixiong won DRR 2015 Best Student Paper Award in February 2015
“TH-ID face and handwriting biometric identification system”, National Prize for Progress in Science and Technology, 2nd Class, 2008
“High performance Asian languages document digitization system”, National Prize for Progress in Science and Technology, 2nd Class, 2003
“TH-OCR integrated Chinese character recognition system”, National Prize for Progress in Science and Technology, 2nd Class, 1998

 

 

Academic Achievement

Video Caption and Scene Text Detection and Recognition

Wang Yaqi, Peng Liangrui, Wang Shengjing, A Multi-stage Method for Chinese Text Detection in News Videos. Procedia Computer Science, 2016, 96: 1409-1417
Multilingual Document image recognition
Li Pengchao, Peng Liangrui, Wen Juan, Rejecting Character Recognition Errors Using CNN Based Confidence Estimation, Chinese Journal of Electronics, 25(3), 2016: 520-526
Peng Liangrui, Liu Changsong, Ding Xiaoqing, Jin Jianming, Wu Youshou, Wang Hua, Bao Yanhua, Multi-font printed Mongolian document recognition system, International Journal on Document Analysis and Recognition, 13(2), 2010: 96-103
Li Pengchao, Zhu Jiadong, Peng Liangrui and Guo Yunbiao, RNN Based Uyghur Text Line Recognition and its Training Strategy, 12th IAPR Workshop on Document Analysis Systems, 2016:19-24
Ye Hao, Peng Liangrui, Word level script recognition for Uighur document mixed with English script. MOCR, ICDAR 2013: 4:1-4:5
Su Bing, Peng Liangrui, Ding Xiaoqing, SemiBoost-based Arabic character recognition method,Proceedings of SPIE, v7874, 2011
Peng Liangrui, Liu Changsong, Ding Xiaoqing, Wang Hua, Jin Jianming,  Multi-font printed Mongolian document recognition system, Proceedings of SPIE, v 7247, 2009
Xiu Pingping, Peng Liangrui, Ding Xiaoqing, Offline handwritten Arabic character segmentation with probabilistic model, Lecture Notes in Computer Science, Document Analysis Systems VII, 2006 : 402-412,
Peng Liangrui, Liu Changsong, Ding Xiaoqing, et al., Multilingual document recognition research and its application in China, 2nd International Conference on Document Image Analysis for Libraries (DIAL 2006) , 2006: 126-132
Ding Xiaoqing, Wen Di, Peng Liangrui, Document Digitization Technology and its Application for Digital Libraries in China, 1st International Conference on Document Image Analysis for Libraries (DIAL2004), 2004:46-53
Peng Liangrui, et al., An Automatic Performance Evaluation Method for Document Page Segmentation ICDAR 2001: 134-137

Online Handwritten Character Recognition and Analysis

Hu Yang, Peng Liangrui, Tang Yejun, On-line Handwritten Mathematical Expression Recognition Method Based on Statistical and Semantic Analysis. Document Analysis Systems 2014: 171-175
Li Rongsha, Peng Liangrui, Xun Endong, Wei Nan, A Stroke Order Verification Method for On-Line Handwritten Chinese Characters Based on Tempo-spatial Consistency Analysis. ICDAR 2013: 999-1003

Historical Document Recognition

Tang Yejun, Peng Liangrui Peng, Xu Qian, Wang Yanwei and Furuhata Akio, CNN based Transfer Learning for Historical Chinese Character Recognition, 12th IAPR Workshop on Document Analysis Systems, 2016: 25-29, DAS 2016 Best Paper Award
Feng Jixiong, Peng Liangrui, Frank Lebourgeois, Gaussian process style transfer mapping for historical Chinese character recognition. DRR 2015: 94020D, DRR 2015 Best Student Paper Award
Fan Boqiang, Peng Liangrui, Frank Lebourgeois, Layout Analysis Algorithm Based on Probabilistic Graphical Model for Dunhuang Historical Documents. HIP@ICDAR 2015: 63-70
Li Bohan, Peng Liangrui, Ji Jingning, Historical Chinese Character Recognition Method Based on Style Transfer Mapping. Document Analysis Systems 2014: 96-100
Ji Jingning, Peng Liangrui, Li Bohan, Graph Model Optimization Based Historical Chinese Character Segmentation Method. Document Analysis Systems 2014: 282-286
Yang Linjie, Peng Liangrui, Local projection-based character segmentation method for historical Chinese documents. DRR 2013: 86580O
Sun Xiaolu, Peng Liangrui, Ding Xiaoqing, Touching character segmentation method for Chinese historical documents, Proceedings of SPIE, v 7534, 2010
Peng Liangrui, et al., Design and development of an ancient Chinese document recognition system, Proceedings of SPIE, v 5020, 2004:166-173

Biometric personal identification

Yaqi Wang, Liangrui Peng, Shengjing Wang, Xiaoqing Ding, Contactless palm landmark detection and localization on mobile devices, IS&T International Symposium on Electronic Imaging 2016, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications Conference, 2016
Hu Jiawei, Peng Liangrui, Zheng Li, XFace: A Face Recognition System for Android Mobile Phones. CPSNA 2015: 13-18
Li Changting, Peng Liangrui, Liu Changsong, Ding Xiaoqing, On-line signature verification method by Laplacian spectral analysis and dynamic time warping. DRR 2014: 90210S-90210S-10
Xu Lu, Ding Xiaoqing, Peng Liangrui and Li Xin, An improved method based on weighted grid micro-structure feature in text-independent writer recognition, International Conference on Document Analysis and Recognition (ICDAR 2011), 2011: 638-642