About the Authors

Zhuo Zhang

zzhang@i2r.a-star.edu.sg

Affiliations Institute for Infocomm Research, Agency for Science, Technology and Research, Singapore, Singapore, School of Computer Engineering, Nanyang Technological University, Singapore, Singapore

Yanwu Xu

Affiliation Institute for Infocomm Research, Agency for Science, Technology and Research, Singapore, Singapore

Jiang Liu

Affiliation Institute for Infocomm Research, Agency for Science, Technology and Research, Singapore, Singapore

Damon Wing Kee Wong

Affiliation Institute for Infocomm Research, Agency for Science, Technology and Research, Singapore, Singapore

Chee Keong Kwoh

Affiliation School of Computer Engineering, Nanyang Technological University, Singapore, Singapore

Seang-Mei Saw

Affiliation Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore

Tien Yin Wong

Affiliation Department of Ophthalmology, Singapore Eye Research Institute, Singapore, Singapore

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZZ JL YX. Performed the experiments: ZZ YX. Analyzed the data: DWKW YX ZZ. Contributed reagents/materials/analysis tools: ZZ YX. Wrote the paper: ZZ YX JL DWKW CKK SMS TYW.