Design of secam video encoder and decoder system using modified anti-cloche filter, BPF and error-free square root. - Ju-hyun Kim; Jooyoung Ha; Bongsoon Kang (ISSPA, 2005)

Implementation of the Gamma Line System Similar to Non-linear Gamma Curve with 2bit Error(LSB). - Wonwoo Jang; Hyunsik Kim; Sungmok Lee; Jooyoung Ha; Bongsoon Kang (APCCAS, 2006)

Security camera based on a single chip solution using a sharply outlined display algorithm and variable-clock video encoder. - Joohyun Kim 005; Jooyoung Ha; Shinki Jeong; Hoongee Yang; Bongsoon Kang (IEEE Trans. Consumer Electron., 2006)

A New Approach to Color Adjustment for Mobile Application Displays with a Skin Protection Algorithm on a CIE1931 Diagram. - Jooyoung Ha; Sungmok Lee; Taeeung Kim; Wontae Choi; Bongsoon Kang (IEEE Trans. Consumer Electron., 2007)

Improved dynamic range of the camera image by using double-exposure image processing method for mobile phone cameras. - Won-Woo Jang; Boo-Dong Kwak; Jooyoung Ha; Bongsoon Kang; Gidong Lee (J. Inform. and Commun. Convergence Engineering, 2009)

I am Ssam: Learning Benefits of the Korean Wrap Food. - Yang Kyu Lim; Eun Ju Lee; Joo Young Ha; Jin Wan Park (HCI (27), 2016)

Touch: Interactive Exhibition Using the Biometric Information of the Audience. - Jooyoung Ha; Yang Kyu Lim (HCI (38), 2021)