1D Handwriting: Gesture Input on Smart Glasses Pervasive HCI Lab, Tsinghua University | Summer 2015—Spring 2016

Text entry can be a significant hassle on augmented reality (AR) devices, as there were no practical methods for input. In this project, I worked on 1D Handwriting, which enabled text entry with one-dimensional gestures on Google Glass. The users’ text entry rate reached 19.6 WPM after training. This method can also be useful for other one-dimensional constrained interfaces, e.g. the side of a smartphone and smart wristbands.


  • (Conference Paper) Chun Yu, Ke Sun, Mingyuan Zhong, Xincheng Li, Peijun Zhao, Yuanchun Shi: One-Dimensional Handwriting: Inputting Letters and Words on Smart Glasses. CHI 2016, pp. 71-82. Honorable Mention[PDF]
  • (Chinese Patent) Chun Yu, Ke Sun, Mingyuan Zhong, Xincheng Li, Yuanchun Shi: One-Dimensional Handwriting Input Method and Apparatus. CN Patent CN105549890A.


  • Conducted a pilot study using a user participatory approach to solicit designs for one-dimensional gestures
  • Designed and implemented the text entry application on Google Glass using statistical decoding
  • Conducted a formal user study to evaluate the text entry performance; implement the 1Line keyboard for comparison
  • Analyzed the experiment results and co-authored the conference paper (as the third author)


  • Tsinghua Student Research Training Program (SRT) #1522T0145: CNY 5,000.
  • Beijing College Student Innovation Fund #201610003B015: CNY 10,000.