| 2016 | AIMSA | Smooth Stroke Width Transform for Text Detection. | Il-Seok Oh, Jin-Seon Lee |
| 2013 | CAIP | Multi-scale Image Segmentation Using MSER. | Il-Seok Oh, Jin-Seon Lee, Aditi Majumder |
| 2012 | ICPRAM | Cloth Covering and Application to Feature Extraction for Script Identification. | Minwoo Kim, Il-Seok Oh |
| 2011 | ICDAR | Script-Free Text Line Segmentation Using Interline Space Model for Printed Document Images. | Minwoo Kim, Il-Seok Oh |
| 2010 | ICPR | Local Binary Pattern-Based Features for Text Identification of Web Images. | Insook Jung, Il-Seok Oh |
| 2005 | ICDAR | Hangul Document Image Retrieval System Using Rank-based Recognitio. | Duk-Ryong Lee, Woo-Youn Kim, Il-Seok Oh |
| 2003 | ICDAR | A Text Watermarking Algorithm based on Word Classification and Inter-word Space Statistics. | Young-Won Kim, Kyung-Ae Moon, Il-Seok Oh |
| 2003 | ICDAR | Binary Classification Trees for Multi-class Classification Problems. | Jin-Seon Lee, Il-Seok Oh |
| 2003 | IDEAL | Wavelet-Based Feature Extraction from Character Images. | Jong Hyun Park, Il-Seok Oh |
| 2002 | ICPR | Local Search-Embedded Genetic Algorithms for Feature Selection. | Il-Seok Oh, Jin-Seon Lee, Byung Ro Moon |
| 2002 | ICPR | Shape Decomposition and Skeleton Extraction of Character Patterns. | Jeong-Sun Park, Il-Seok Oh |
| 2001 | ICDAR | A Class-Modularity for Character Recognition. | Il-Seok Oh, Jin-Seon Lee, Ching Y. Suen |
| 1999 | ICDAR | A Segmentation-free Recognition of Two Touching Numerals using Neural Network. | Soon-Man Choi, Il-Seok Oh |
| 1998 | ICPR | Using class separation for feature analysis and combination of class-dependent features. | Il-Seok Oh, Jin-Seon Lee, Ching Y. Suen |
| 1997 | ICDAR | A Feature for Character Recognition Based on Directional Distance Distributions. | Il-Seok Oh, Ching Y. Suen |
| 1996 | PRICAI | Extraction of Face Region and Features Based on Chromatic Properties of Human Faces. | Tae-Woong Yoo, Il-Seok Oh |