Chang Xiao

schoolColumbia Universitybar_chart#8059 Global Rank

Total Papers

HCI Rank

#8059

Research Areas

Years Active

Recent Publications

MoiréBoard: A Stable, Accurate and Low-cost Camera Tracking Method

Camera tracking is an essential building block in a myriad of HCI applications. For example, commercial VR devices are equipped with dedicated hardware, such as laser-emitting beacon stations, to enable accurate tracking of VR headsets. However, this hardware remains costly. On the other hand, low-cost solutions such…

CHI '211st AuthorHand Gesture Recognition +1

BackTrack: 2D Back-of-device Interaction Through Front Touchscreen

We present BackTrack, a trackpad placed on the back of a smartphone to track fine-grained finger motions. Our system has a small form factor, with all the circuits encapsulated in a thin layer attached to a phone case. It can be used with any off-the-shelf smartphone, requiring no power supply or modification of the o…

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