| 2012 | ICCSA | DEM Interpolation from Contours Using Medial Axis Transformation. | Joonsoo Choi, Jaewee Heo, Kwang-Soo Hahn, Junho Kim |
| 2012 | IGARSS | Mapping of ALOS PALSAR σ | Min-Gee Hong, In-Kyu Jeong, Joonsoo Choi, Choen Kim |
| 2006 | CATA | Partial Object Recognition based on an Ellipse using Symmetry in Image Databases. | June-Suh Cho, Joonsoo Choi |
| 2005 | SAC | Contour-based partial object recognition using symmetry in image databases. | June-Suh Cho, Joonsoo Choi |
| 2004 | ICCSA | Design, Analysis, and Optimization of LCD Backlight Unit Using Ray Tracing Simulation. | Joonsoo Choi, Kwang-Soo Hahn, Heekyung Seo, Seong-Cheol Kim |
| 2004 | IKE | Object Classification Using Pre-assigned Intervals in Image Databases. | June-Suh Cho, Hongki Kim, Joonsoo Choi |
| 2003 | PIMRC | Characterization of spatial channel model based on ray path analysis in high-rise urban environment. | Do-Young Kwak, Noh-Gyoung Kang, Jaewon Lee, Seong-Cheol Kim, Joonsoo Choi |
| 1998 | ISAAC | Computing Weighted Rectilinear Median and Center Set in the Presence of Obstacles. | Joonsoo Choi, Chan-Su Shin, Sung Kwon Kim |