Hiroki Takahashi is currently an Associate Professor at the Graduate School of Information Science and Technology, Department of Informatics, The University of Electro-Communications, Tokyo, Japan and is actively affiliated with the academic society of the Institute of Electronics, Information and Communication Engineers, Institute of Image Information and Media Engineers, Institute of Image Electronics Engineers, and the Society of Arts and Sciences. His research interests are image processing, computer vision (CV), computer graphics (CG), augmented reality (AR), and machine learning