| 2003 | ICDAR | Improvement of Matching and Evaluation in Handwritten Numeral Recognition Using Flexible Standard Patterns. | Hirokazu Muramatsu, Takashi Kobayashi, Takahiro Sugiyama, Keiichi Abe |
| 2002 | ICIP | Corner detection using slit rotational edge-feature detector. | Yasutaka Etou, Takahiro Sugiyama, Keiichi Abe, Toru Abe |
| 2002 | MVA | Quantitative Evaluation of Damaged Areas of a Big Earthquake Detected by Image Processing and GIS Information. | Kensuke Shiraki, Masato Ishii, Takahiro Sugiyama, Keiichi Abe |
| 2001 | ICDAR | Handwritten Numeral Recognition Using Flexible Matching Based on Learning of Stroke Statistics. | Takashi Kobayashi, Kaori Nakamura, Hirokazu Muramatsu, Takahiro Sugiyama, Keiichi Abe |
| 2000 | ICPR | Edge Detection Method Based on Edge Reliability with Fixed Thresholds: Consideration of Uniformity and Gradation. | Takahiro Sugiyama, Keiichi Abe |
| 2000 | ICPR | Edge Plane Detection in Spatio-Temporal Images by Using Edge Vector and Edge Reliability. | Fumiaki Yamana, Takahiro Sugiyama, Keiichi Abe |
| 2000 | MVA | Comparison of Color Space Models Based on Human Color Classification and Image Segmentation. | Keiko Takahashi, Masaki Matsuura, Takahiro Sugiyama, Keiichi Abe |
| 2000 | SMC | Evaluation of edge detection methods through psychological tests-is the detected edge really desirable for humans? | Miho Ohsaki, Takahiro Sugiyama, Hideaki Ohno |
| 1996 | ICPR | Edge feature analysis by a vectorized feature extractor and in multiple edges. | Takahiro Sugiyama, Keiichi Abe |
| 1994 | MVA | Image Segmentation Using both Edge and Region Information. | Takahiro Sugiyama, Keiichi Abe |