no code implementations • 2 Nov 2022 • Zikang Leng, Yash Jain, Hyeokhyen Kwon, Thomas Plötz
In this work we first introduce a measure to quantitatively assess the subtlety of human movements that are underlying activities of interest--the motion subtlety index (MSI)--which captures local pixel movements and pose changes in the vicinity of target virtual sensor locations, and correlate it to the eventual activity recognition accuracy.
no code implementations • 29 May 2020 • Hyeokhyen Kwon, Catherine Tong, Harish Haresamudram, Yan Gao, Gregory D. Abowd, Nicholas D. Lane, Thomas Ploetz
The lack of large-scale, labeled data sets impedes progress in developing robust and generalized predictive models for on-body sensor-based human activity recognition (HAR).
no code implementations • ICCV 2015 • Hyeokhyen Kwon, Yu-Wing Tai
On the contrary, latest imaging sensors capture a RGB image with resolution of multiple times larger than a hyperspectral image.
no code implementations • CVPR 2015 • Hyeokhyen Kwon, Yu-Wing Tai, Stephen Lin
Depth maps captured by consumer-level depth cameras such as Kinect are usually degraded by noise, missing values, and quantization.