Hiroki TAKAHASHI


An Interference Mitigation Technique for Dynamic TDD Based Frequency-Separated Small Cell Network in LTE-Advanced Based Future Wireless Access
Hiroki TAKAHASHI Kazunari YOKOMAKURA Kimihiko IMAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1436-1446
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
dynamic TDDLTE-Advancedinterference mitigationtransmit power controlcell clustering
 Summary | Full Text:PDF(1.9MB) | (Errata[Uploaded on October 1, 2015])

Sketch-Based Evaluation of Image Segmentation Methods
David GAVILAN Hiroki TAKAHASHI Suguru SAITO Masayuki NAKAJIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/01/01
Vol. E90-D  No. 1  pp. 156-164
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Image Technology)
Category: 
Keyword: 
image segmentationsegmentation evaluationperceptionsketchBlobs
 Summary | Full Text:PDF(928.2KB)

Scale-Space Processing of Point-Sampled Geometry for Efficient 3D Object Segmentation
Hamid LAGA Hiroki TAKAHASHI Masayuki NAKAJIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/05/01
Vol. E88-D  No. 5  pp. 963-970
Type of Manuscript:  Special Section PAPER (Special Section on Cyberworlds)
Category: 
Keyword: 
scale-space3D object segmentationPDE3D object retrievalpoint-based graphics
 Summary | Full Text:PDF(557KB)

Creating Virtual Environment Based on Video Data with Forward Motion
Xiaohua ZHANG Hiroki TAKAHASHI Masayuki NAKAJIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/04/25
Vol. E83-D  No. 4  pp. 931-936
Type of Manuscript:  PAPER
Category: Multimedia Pattern Processing
Keyword: 
virtual environmentpseudo-3D structureimage compositionpyramid data structurecamera motionimage-based rendering
 Summary | Full Text:PDF(620KB)

Evolutional Design and Training Algorithm for Feedforward Neural Networks
Hiroki TAKAHASHI Masayuki NAKAJIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1999/10/25
Vol. E82-D  No. 10  pp. 1384-1392
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
designing neural networkstraining neural networksfeedforward neural networkhandwritten character recognitionevolutional computation
 Summary | Full Text:PDF(1MB)

A Local Property of the Phasor Model of Neural Networks
Masahiro AGU Kazuo YAMANAKA Hiroki TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/08/25
Vol. E79-D  No. 8  pp. 1209-1211
Type of Manuscript:  LETTER
Category: Bio-Cybernetics and Neurocomputing
Keyword: 
neural netassociative memoryHopfield modelphasor modelphase-locked states
 Summary | Full Text:PDF(233.7KB)