Kensuke OKUBO


Image Modification Based on Spatial Frequency Components for Visual Attention Retargeting
Hironori TAKIMOTO Syuhei HITOMI Hitoshi YAMAUCHI Mitsuyoshi KISHIHARA Kensuke OKUBO 
Publication:   
Publication Date: 2017/06/01
Vol. E100-D  No. 6  pp. 1339-1349
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
visual attentionvisual saliency mapattention retargetingwavelet analysis
 Summary | Full Text:PDF(2.1MB)

Left-Handed Waveguide Using Cutoff TM-Mode
Mitsuyoshi KISHIHARA Yuki MIZUTANI Isao OHTA Kensuke OKUBO Hironori TAKIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/01/01
Vol. E99-C  No. 1  pp. 61-67
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category: 
Keyword: 
circular waveguidesEBG deviceselectromagnetic propagationrectangular waveguides
 Summary | Full Text:PDF(930.5KB)

Image Modification Based on a Visual Saliency Map for Guiding Visual Attention
Hironori TAKIMOTO Tatsuhiko KOKUI Hitoshi YAMAUCHI Mitsuyoshi KISHIHARA Kensuke OKUBO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/11/01
Vol. E98-D  No. 11  pp. 1967-1975
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
visual attentionsaliency mapimage processingguiding attention
 Summary | Full Text:PDF(1.4MB)

Band Pass Response on Left-Handed Ferrite Rectangular Waveguide
Kensuke OKUBO Makoto TSUTSUMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1565-1571
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices and Circuits
Keyword: 
left-handed circuitferrite filterferrite phase shifterperiodic structure
 Summary | Full Text:PDF(770.9KB)

Design of a Broadband Cruciform Substrate Integrated Waveguide Coupler
Mitsuyoshi KISHIHARA Isao OHTA Kensuke OKUBO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/02/01
Vol. E94-C  No. 2  pp. 248-250
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
millimeter-wave technologypassive componentscouplerssubstrate-integrated waveguide (SIW)planar circuit approach
 Summary | Full Text:PDF(246.4KB)

Shielded Structure of Composite Right/Left-Handed Transmission Line Using Substrate Integrated Waveguide and Floating-Conductor
Kensuke OKUBO Mitsuyoshi KISHIHARA Akifumi IKEDA Jiro YAMAKITA Isao OHTA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 1055-1062
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
composite right/left-handed transmission line (CRLH-TL)substrate integrated waveguide (SIW)SIW-type CRLHfloating-conductorshielded structureperiodic structure
 Summary | Full Text:PDF(2.1MB)

Analysis of Post-Wall Waveguide Based on H-Plane Planar Circuit Approach
Mitsuyoshi KISHIHARA Isao OHTA Kensuke OKUBO Jiro YAMAKITA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/01/01
Vol. E92-C  No. 1  pp. 63-71
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and its Application)
Category: 
Keyword: 
parallel-plate waveguidessubstrate integrated waveguide (SIW)waveguide discontinuitiespassive circuits
 Summary | Full Text:PDF(829KB)

Effects of Nonuniform Bias Magnetic Field on Left-Handed Ferrite Microstrip Line
Kensuke OKUBO Makoto TSUTSUMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Vol. E90-C  No. 9  pp. 1756-1762
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices/Circuits
Keyword: 
left-handed lineferrite microstrip linenonreciprocitynonuniform bias magnetic field
 Summary | Full Text:PDF(601.9KB)

On the Quasi-Left-Handed Transmission Line with Gyrator Loading
Kensuke OKUBO Makoto TSUTSUMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/09/01
Vol. E89-C  No. 9  pp. 1312-1317
Type of Manuscript:  Special Section PAPER (Special Section on Metamaterials for Microwave and Millimeter-Wave Applications)
Category: 
Keyword: 
gyratorleft-handed lineferriteperiodic structurenonreciprocity
 Summary | Full Text:PDF(514.9KB)

Hollow Ferrite Waveguide and Its Application
Kensuke OKUBO Makoto TSUTSUMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1685-1689
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
ferrite waveguidenonreciprocal circuithollow guidemagnetostatic surface wave
 Summary | Full Text:PDF(347.7KB)

Full-Wave Finite-Difference Time-Domain Formulation for Gyromagnetic Ferrite Media Magnetized in Arbitrary Direction
Atsushi SANADA Kensuke OKUBO Ikuo AWAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 931-936
Type of Manuscript:  Special Section PAPER (Special Issue on Techniques for Constructing Microwave Simulators--Design and Analysis Tools for Electromagnetic Fields, Circuits, and Antennas--)
Category: Electromagnetics Simulation Techniques
Keyword: 
FDTD methodferritemicrowave
 Summary | Full Text:PDF(698.7KB)