About the Authors

Ngaam J. Cheung

Contributed equally to this work with: Ngaam J. Cheung, Xue-Ming Ding

Affiliation Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai, China

Xue-Ming Ding

Contributed equally to this work with: Ngaam J. Cheung, Xue-Ming Ding

Affiliation School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China

Hong-Bin Shen

hbshen@sjtu.edu.cn

Affiliation Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai, China

Competing Interests

Co-author Hong-Bin Shen is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: NJC XMD HBS. Performed the experiments: NJC. Analyzed the data: NJC XMD. Wrote the paper: NJC XMD HBS. Method development and implementation: NJC HBS.