| 2012 | ICASSP | Fast and accurate content-based video copy detection using bag-of-global visual features. | Yusuke Uchida, Koichi Takagi, Shigeyuki Sakazawa |
| 2012 | ICPR | An alternative to IDF: Effective scoring for accurate image retrieval with non-parametric density ratio estimation. | Yusuke Uchida, Koichi Takagi, Shigeyuki Sakazawa |
| 2011 | PSIVT | Human Motion Tracking with Monocular Video by Introducing a Graph Structure into Gaussian Process Dynamical Models. | Jianfeng Xu, Koichi Takagi, Shigeyuki Sakazawa |
| 2011 | SiggraphA | Interactive generation of dancing animation with music synchronization. | Jianfeng Xu, Koichi Takagi, Shigeyuki Sakazawa |
| 2009 | SiggraphA | Motion beat induction based on short-term principal component analysis. | Jianfeng Xu, Koichi Takagi, Akio Yoneyama |
| 2006 | MMSP | Conversion of MP3 to AAC in the Compressed Domain. | Koichi Takagi, Satoshi Miyaji, Shigeyuki Sakazawa, Yasuhiro Takishima |
| 2003 | VCIP | FGS encoder for efficiency improvement and decoder for drift reduction. | Kenji Matsuo, Koichi Takagi, Atsushi Koike, Shuichi Matsumoto |
| 2003 | VCIP | A study on rate distortion optimization scheme for JVT coder. | Koichi Takagi, Yasuhiro Takishima, Yasuyuki Nakajima |