A5044361179- Tactile and Sensory Interactions
- Interactive and Immersive Displays
- Gaze Tracking and Assistive Technology
- Industrial Vision Systems and Defect Detection
- Color Science and Applications
- Hand Gesture Recognition Systems
- Spectroscopy and Chemometric Analyses
Tsinghua University
2022-2025
Northeastern University
1992
In this paper, we describe how three conventional segmentation methods can be generalized to handle color images. The algorithms consider are: (1) seed based region growing, (2) directional derivative edge detection, and (3) recursive split merge. We then evaluate the effectiveness of these techniques using difference metrics associated with four different spaces a variety real synthetic spectral primary system (RGB), NTSC transmission (YIQ), hue saturation brightness (HLS), (4) CIE...
We present ShadowTouch, a novel sensing method to recognize the subtle hand-to-surface touch state for independent fingers based on optical auxiliary. ShadowTouch mounts forward-facing light source user's wrist construct shadows surface in front of when corresponding are close surface. With such an design, vertical movements near-surface magnified and turned shadow features cast surface, which recognizable computer vision algorithms. To efficiently each finger, we devised two-stage CNN-based...
We present DRG-Keyboard, a gesture keyboard enabled by dual IMU rings, allowing the user to swipe thumb on index fingertip perform word typing as if miniature QWERTY keyboard. With IMUs attached user's and finger, DRG-Keyboard can 1) measure relative attitude while mapping it 2D coordinates 2) detect thumb's touch-down touch-up events combining data synchronous frequency domain data, based which be implemented. To understand users behavior with we collected analyzed in two manners. Based...