Chang Liu

schoolTsinghua Universitybar_chart#2145 Global Rank

Total Papers

HCI Rank

#2145

Research Areas

Years Active

Recent Publications

HiSync: Spatio-Temporally Aligning Hand Motion from Wearable IMU and On-Robot Camera for Command Source Identification in Long-Range HRI

Long-range Human-Robot Interaction (HRI) remains underexplored. Within it, Command Source Identification (CSI) – determining who issued a command – is especially challenging due to multi-user and distance-induced sensor ambiguity. We introduce HiSync, an optical-inertial fusion framework that treats hand motion as bin…

CHI '264th AuthorHand Gesture Recognition +2

3DRing: Enabling Low-Cost 3D Hand Position Tracking by Fusing Inertial and Low-Framerate Optical Sensing

Current mobile hand tracking systems primarily rely on high-framerate (HFR) optical sensors to capture hand positions, resulting in high computational cost and limiting the applicability in end devices. We propose 3DRing, a 3D hand position tracking method that requires only low-framerate (LFR, <10 FPS) optical data a…

CHI '261st AuthorHuman-LLM Collaboration +2

Behavioral Indicators of Overreliance During Interaction with Conversational Language Models

LLMs are now embedded in a wide range of everyday scenarios. However, their inherent hallucinations risk hiding misinformation in fluent responses, raising concerns about overreliance on AI. Detecting overreliance is challenging, as it often arises in complex, dynamic contexts and cannot be easily captured by post-hoc…

CHI '251st AuthorEye Tracking & Gaze Interaction +2

Enhancing Smartphone Eye Tracking with Cursor-Based Interactive Implicit Calibration

The limited accuracy of eye-tracking on smartphones restricts its use. Existing RGB-camera-based eye-tracking relies on extensive datasets, which could be enhanced by continuous fine-tuning using calibration data implicitly collected from the interaction. In this context, we propose COMETIC (Cursor Operation Mediated…

CHI '235th+ AuthorShape-Changing Interfaces & Soft Robotic Materials +1

Thermotion: Design and fabrication of thermofluidic composites for animation effects on object surfaces

We introduce Thermotion, a novel method using thermofluidic composites to design and display thermochromic animation effects on object surfaces. With fluidic channels embedded under the object surfaces, the composites utilize thermofluidic flows to dynamically control the surface temperature as an actuator for thermoc…

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