Search Results for author: Hyeokhyen Kwon

Found 4 papers, 0 papers with code

Fine-grained Human Activity Recognition Using Virtual On-body Acceleration Data

no code implementations2 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.

Human Activity Recognition

IMUTube: Automatic Extraction of Virtual on-body Accelerometry from Video for Human Activity Recognition

no code implementations29 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).

Human Activity Recognition

RGB-Guided Hyperspectral Image Upsampling

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.

Data-Driven Depth Map Refinement via Multi-Scale Sparse Representation

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.

Dictionary Learning Quantization

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