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Home > Tenured Faculties > Tanaka Yuichi

Tenured Faculties

Tanaka Yuichi

Affiliation Institute of Engineering
Division Division of Advanced Information Technology and Computer Science
Research field Signal processing
Keyword(S) Image/video coding, image processing, filter banks/wavelets
Url http://tanaka.msp-lab.org
Research experience

・Apr.2005-Mar.2003 Research Assistant, COE program in Keio University
・Jun.2006-Dec.2006 Visiting Scholar, University of California, San Diego
・Apr.2007-Sep.2007 Research Fellow, JSPS (DC2)
・Aug.2007-Nov.2008 Research Assistant, Global COE program in Keio University
・Oct.2007-Nov.2008 Research Fellow, JSPS (PD)
・Nov.2007-Apr.2008 Postdoctral Scholar, University of California, San Diego
・Dec.2008-Mar.2012 Assistant Professor, Utsunomiya University
・Apr.2012-Mar.2017 Associate Professor, Tokyo University of Agriculture and Technology
・Apr.2017-present Associate Professor (Tenured), Tokyo University of Agriculture and Technology

Educational background

・2003 B.E., Department of Electronics and Electrical Engineering, Keio University
・2005 M.E., Graduate School of Integrated Design Engineering, Keio University
・2007 Ph.D., Graduate School of Integrated Design Engineering, Keio University

Awards

* The latest information is shown at the member's website.
(At 2016)
・2016 IEEE Signal Processing Society Tokyo Joint Chapter IEEE Signal Processing Society Japan Best Paper Award
・2015 APSIPA ASC 2015 Best Paper Award
・2010 Yasujiro Niwa Outstanding Paper Award
・2011 TELECOM System Technology Award

Selected papers and publications

* The latest information is shown at the member's website.
(At 2011)
・Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "A lattice structure of biorthogonal linear-phase filter banks with higher order feasible building blocks," IEEE Trans. on Circuits and Systems I: Regular Papers,vol. 55, no. 8, pp. 2322-2331, 2008.
・Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Multiresolution image representation using combined 2-D and 1-D directional filter banks," IEEE Trans. on Image Processing, vol. 18, no. 2, pp. 269-280, 2009.
・Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Higher-order feasible building blocks for lattice structure of oversampled linear-phase perfect reconstruction filter banks," Signal Processing, vol. 89, no. 9, pp. 1694-1703, 2009.
・Y. Tanaka, M. Hasegawa, S. Kato, M. Ikehara, and T. Q. Nguyen, "Adaptive directional wavelet transform based on directional prefiltering," IEEE Trans. on Image Processing, vol. 19, no. 4, pp. 934-945, 2010.

Research Description

Our research interst is multidimensional multimedia signal processing. Signal processing is a very important research area which bridges mathematics and engineering, together with information theory. In practical applications, its fundamental theories are used in the core system of image/video coding, such as JPEG and H.264/AVC. We are working in the field of ""visible"" signal processing, i.e., image and video. Our selected achievements are listed below:

1. Multiresolutin image representation with directionality
In conventional image coding techniques, separable time-frequency transform along horizontal and vertical directions is performed. However, images usually have diagonal components as well as horizontal/vertical ones. Therefore, separable transforms are difficult to obtain the optimal energy compaction. We solve the problem based on the combination of one- and two-dimensional filter banks.

2. Filter banks with low complexity and high performance
Filter banks are generalized versions of major time-frequency analysis techniques, such as fast Fourier transform and discrete cosine transform. We reduced redundancy of filter bank structures to speed up their optimization.

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About TUAT's tenure-track program

A tremendous merit in this tenure track program I think is the opptunity of working as a principal investigator for young researchers. Different from other universities in Japan, TUAT is strongly promoting the tenure track program. Thus (tenured) faculty members and staffs in this university are very helpful for tenure track professors. Their start-up grant will also be very useful to get my lab off to a successful start.

Future aspirations

Recently, achievements in computer vision and computer graphics (CV/CG) researches have been widely used in signal processing. Also, CV/CG is based on fundamental theories of signal processing and information theory. We will be working in the wide range of multidimensional multimedia signal processing for influencing on both of theoretical and practical signal processing researches.