Hyeong Woo Cha

Development of a Novel Fast Rotation Angle Detection Algorithm using a Quasi-Rotation Invariant Feature Based on Sobel Edge

Hi Seok Kim, Ronnie O. Serfa Juan, Min Woo Jung, 2017 .

Development of a Sensing Module for Standing and Moving Human Body Using a Shutter and PIR Sensor

Jin Su Kim, Hi Seok Kim, Ronnie O. Serfa Juan, 2016, MUE 2016.