Research Support Office Research Advancement Division. Tokyo University of Agriculture and Technology
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Home > Tenured Faculties > Tanaka Yuichi
Tanaka Yuichi
Affiliation | Institute of Engineering |
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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 |
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Educational background | ・2003 B.E., Department of Electronics and Electrical Engineering, Keio University |
Awards | * The latest information is shown at the member's website. |
Selected papers and publications | * The latest information is shown at the member's website. |
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.
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.
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.