池原 雅章

研究成果

年別の研究成果 1988 1996 1997 1998 2002 2004 2007 2009 2010 2011 2016 2019 2023

• 126 Article
• 117 Conference contribution
• 49 Conference article
• 23 Paper
• 3 その他
  • 2 Editorial
  • 1 Review article

年別の研究成果

年別の研究成果

検索結果

• 2008

  3D avatar modeling and transmission using cylinder mapping

  Takahashi, S. I., Khan, I. R., Okuda, M. & Ikehara, M., 2008 3月, In: WSEAS Transactions on Electronics. 5, 3, p. 57-64 8 p.

  研究成果: Article › 査読

  • 3D modeling 100%
  • Imaging systems 45%
  • Image quality 39%
  • Cameras 30%
  • Topology 29%
  3 被引用数 (Scopus)

• A lattice structure of biorthogonal linear-phase filter banks with higher order feasible building blocks

  Tanaka, Y., Ikehara, M. & Nguyen, T. Q., 2008, In: IEEE Transactions on Circuits and Systems I: Regular Papers. 55, 8, p. 2322-2331 10 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Costs 34%
  17 被引用数 (Scopus)
• 2007

  All-in-focus photo image creation by wavelet transforms

  Shirai, K., Nomura, K. & Ikehara, M., 2007 3月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 90, 3, p. 57-66 10 p.

  研究成果: Article › 査読

  • Wavelet transforms 100%
  • Photography 16%
  • Cameras 9%
  5 被引用数 (Scopus)

• Design of M-channel perfect reconstruction filter banks with IIR-FIR hybrid building blocks

  Iwamura, S., Suzuki, T., Tanaka, Y. & Ikehara, M., 2007 8月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E90-A, 8, p. 1636-1643 8 p.

  研究成果: Article › 査読

  • Cascade connections 100%
  • Filter Banks 88%
  • Building Blocks 74%
  • Filter banks 72%
  • Design 41%
  3 被引用数 (Scopus)

• HMM-based surface reconstruction from single images

  Nagai, T., Ikehara, M. & Kurematsu, A., 2007 10月 1, In: Systems and Computers in Japan. 38, 11, p. 80-89 10 p.

  研究成果: Article › 査読

  • Surface Reconstruction 100%
  • Surface reconstruction 88%
  • Hidden Markov models 69%
  • Knowledge 34%
  • Object 30%
  4 被引用数 (Scopus)

• M-channel nonlinear phase filter banks in image compression: Structure, design, and signal extension

  Uto, T., Oka, T. & Ikehara, M., 2007 4月, In: IEEE Transactions on Signal Processing. 55, 4, p. 1339-1351 13 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image compression 91%
  • Computational complexity 18%
  • Decomposition 16%
  16 被引用数 (Scopus)
• 2006

  3D CUBE video coding using phase correlation motion estimation

  Oguri, T., Ikehara, M. & Nguyen, T., 2006 5月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 89, 5, p. 32-38 7 p.

  研究成果: Article › 査読

  • Motion estimation 100%
  • Image coding 93%
  • Discrete cosine transforms 35%
  • Standardization 29%
  • Computer simulation 17%
  2 被引用数 (Scopus)

• Design of equiripple minimum phase FIR filters with ripple ratio control

  Okuda, M., Ikehara, M. & Takahashi, S. I., 2006, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E89-A, 3, p. 751-756 6 p.

  研究成果: Article › 査読

  • FIR Filter 100%
  • Ripple 95%
  • FIR filters 72%
  • Filter 58%
  • Design 40%
  4 被引用数 (Scopus)
• 2005

  Complex Approximation of FIR Digital Filters by Updating Desired Responses

  Okuda, M., Yoshida, M., Kiyose, K., Ikehara, M. & Takahashi, S. I., 2005 8月, In: IEEE Transactions on Signal Processing. 53, 8, p. 2948-2953 6 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Digital filters 96%
  • Newton-Raphson method 33%
  • Numerical methods 26%
  6 被引用数 (Scopus)

• Image coding using m-channel paraunitary filterbanks: Design with regularity and signal extension method

  Oka, T., Uto, T. & Ikehara, M., 2005 7月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 88, 7, p. 52-60 9 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image coding 90%
  • Convolution 59%
  • Singular value decomposition 31%
  • Pixels 22%

• New lattice structure of M-channel paraunitary filterbanks

  Kobayashi, Y. & Ikehara, M., 2005 6月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 88, 6, p. 12-19 8 p.

  研究成果: Article › 査読

  • Redundancy 100%
  • Mirrors 60%

• Simultaneous approximation of magnitude and group delay in FIR digital filters

  Akazawa, M. & Ikehara, M., 2005 11月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 88, 11, p. 20-27 8 p.

  研究成果: Article › 査読

  • Group delay 100%
  • FIR filters 89%
  • Digital filters 85%
  • Computer simulation 6%
  2 被引用数 (Scopus)
• 2004

  Decorrelating Compensation Scheme for Coefficient Errors of a Filter Bank Parallel A/D Converter

  Sanada, Y. & Ikehara, M., 2004 3月, In: IEEE Transactions on Wireless Communications. 3, 2, p. 341-347 7 p.

  研究成果: Article › 査読

  • Converter 100%
  • Filter Banks 97%
  • Analog to digital conversion 83%
  • Filter banks 80%
  • Compensation and Redress 55%
  14 被引用数 (Scopus)

• Design of generalized filter banks with unequal-length and its application of image coding

  Saito, A., Urushibara, T. & Ikehara, M., 2004 7月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E87-A, 7, p. 1756-1764 9 p.

  研究成果: Article › 査読

  • Image Coding 100%
  • Filter Banks 81%
  • Filter banks 67%
  • Unequal 63%
  • Image coding 60%
  1 被引用数 (Scopus)

• Design of IIR digital filters in the complex domain by transforming the desired response

  Matsunaga, T., Yoshida, M. & Ikehara, M., 2004 7月, In: IEEE Transactions on Signal Processing. 52, 7, p. 1975-1982 8 p.

  研究成果: Article › 査読

  • IIR filters 100%
  • Digital filters 84%
  • Least squares approximations 37%
  • Computational complexity 21%
  18 被引用数 (Scopus)

• Generalized Linear-Phase Paraunitary Nonuniform Filter Banks

  Kobayashi, Y., Kawada, M. & Ikehara, M., 2004 4月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 87, 4, p. 12-20 9 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image coding 15%
  • Wavelet transforms 13%

• Quasi-equiripple approximation of minimum phase FIR filters by updating desired response

  Okuda, M., Khan, I. R., Ikehara, M. & Takahashi, S., 2004 6月, In: IEE Proceedings: Vision, Image and Signal Processing. 151, 3, p. 164-169 6 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Chebyshev approximation 74%
  • Digital filters 48%
  • Numerical methods 39%
  • Computational complexity 36%
  3 被引用数 (Scopus)

• Signal extension for orthogonal filter banks and its application to image coding

  Uto, T., Inoue, T. & Ikehara, M., 2004 3月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 87, 3, p. 41-48 8 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image coding 90%
  • Convolution 38%
  • FIR filters 14%
  • Image compression 13%

• Simultaneous approximation for magnitude and phase responses of FIR digital filters

  Okuda, M., Yoshida, M., Ikehara, M. & Takahashi, S. I., 2004 11月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E87-A, 11, p. 2957-2963 7 p.

  研究成果: Article › 査読

  • FIR Filter 100%
  • Digital Filter 83%
  • Simultaneous Approximation 78%
  • FIR filters 72%
  • Digital filters 69%
• 2003

  Compression of 3D Models by Remesh on Texture Images

  Okuda, M., Nagatomo, K., Ikehara, M. & Takahashi, S. I., 2003 6月, In: IEICE Transactions on Information and Systems. E86-D, 6, p. 1110-1115 6 p.

  研究成果: Article › 査読

  • Textures 100%
  • 3D modeling 24%
  • Medical imaging 23%
  • Computer aided manufacturing 23%
  • Image coding 20%
  1 被引用数 (Scopus)

• Measuring Errors on 3D Meshes Using Pixel Based Search

  Inagaki, K., Okuda, M., Ikehara, M. & Takahashi, S. I., 2003 9月, In: IEICE Transactions on Information and Systems. E86-D, 9, p. 1903-1908 6 p.

  研究成果: Article › 査読

  • Pixels 100%
  • Animation 44%
  • Numerical methods 39%
  2 被引用数 (Scopus)
• 2002

  A family of lapped regular transforms with integer coefficients

  Ikehara, M., Tran, T. D. & Nguyen, T. Q., 2002 4月, In: IEEE Transactions on Signal Processing. 50, 4, p. 834-841 8 p.

  研究成果: Article › 査読

  • Image coding 100%
  • Experiments 35%
  2 被引用数 (Scopus)

• Design of 2D filter banks based on 1D lattice structure

  Isogimi, K., Horibe, T. & Ikehara, M., 2002 8月 6, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 85, 12, p. 38-46 9 p.

  研究成果: Article › 査読

  • Filter banks 100%

• Digital compensation scheme for coefficient errors of complex filter bank parallel A/D converter in low-IF receivers

  Sanada, Y. & Ikehara, M., 2002 12月, In: IEICE Transactions on Communications. E85-B, 12, p. 2656-2662 7 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Compensation and Redress 69%
  5 被引用数 (Scopus)

• Filter banks for less ringing artifacts

  Asano, W., Takeuchi, T. & Ikehara, M., 2002 6月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 85, 6, p. 1-10 10 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Impulse response 18%
  • Image compression 18%

• Generalized linear-phase paraunitary nonuniform filter bank (GenLPPUNUFB)

  Kobayashi, Y., Kawada, M. & Ikehara, M., 2002, In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 4, p. 4173 1 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image coding 22%
  • Wavelet transforms 20%

• Lossless transforms and lossy transforms using IIR filters and their application to image coding

  Uto, T., Kouno, Y., Okuda, M., Ikehara, M. & Takahashi, S. I., 2002 7月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 85, 7, p. 1-9 9 p.

  研究成果: Article › 査読

  • IIR filters 100%
  • Image coding 79%
  • Filter banks 75%
  • FIR filters 25%
  • Networks (circuits) 25%
• 2001

  Direct construction of nonuniform block orthogonal transforms

  Nagai, T., Obata, S. & Ikehara, M., 2001 1月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 84, 4, p. 21-29 9 p.

  研究成果: Article › 査読

  • Frequency bands 100%
  • Filter banks 62%

• Equiripple design in complex domain for FIR digital filters by transforming desired response

  Okuda, M., Kiyose, K., Ikehara, M. & Takahashi, S. I., 2001 1月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 84, 2, p. 30-37 8 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Digital filters 96%
  • Chebyshev approximation 74%
  • Computational complexity 36%
  • Computer simulation 24%
  1 被引用数 (Scopus)

• Lattice structures parameterization of linear phase paraunitary matrices with pairwise mirror-image symmetry in the frequency domain with an odd number of rows

  Kok, C. W., Nagai, T., Ikehara, M. & Nguyen, T. Q., 2001 6月, In: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 48, 6, p. 633-636 4 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Parameterization 96%
  • Mirrors 92%
  • Digital filters 32%
  • Frequency response 27%
  6 被引用数 (Scopus)
• 2000

  Design and factorization of FIR paraunitary filter banks given several analysis filters

  Kok, C. W., Ikehara, M. & Nguyen, T. Q., 2000, In: IEEE Transactions on Signal Processing. 48, 7, p. 2157-2161 5 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Factorization 89%
  • Embeddings (Algorithms) 18%
  • Frequency response 13%
  4 被引用数 (Scopus)

• Generalized unequal length lapped orthogonal transform for subband image coding

  Nagai, T., Ikehara, M. & Kaneko, M., 2000 12月, In: IEEE Transactions on Signal Processing. 48, 12, p. 3365-3378 14 p.

  研究成果: Article › 査読

  • Image coding 100%
  • Frequency bands 22%
  11 被引用数 (Scopus)

• Perfect Reconstruction Nonuniform Filter Banks with Linear Phase

  Nagai, T., Fuchie, T. & Ikehara, M., 2000 1月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 83, 8, p. 103-114 12 p.

  研究成果: Article › 査読

  • Filter banks 100%

• Time-domain design and lattice structure of FIR paraunitary filter banks with linear phase

  Ikehara, M., Nagai, T. & Nguyen, T. Q., 2000 2月, In: Signal Processing. 80, 2, p. 333-342 10 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Linear equations 19%
  • Nonlinear programming 19%
  • Cost functions 16%
  10 被引用数 (Scopus)
• 1999

  Fast LOT with unequal length basis functions: realization and application in subband image coding

  Nagai, T. & Ikehara, M., 1999, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E82-A, 5, p. 825-834 10 p.

  研究成果: Article › 査読

  • Image Coding 100%
  • Mathematical transformations 63%
  • Unequal 63%
  • Image coding 60%
  • Basis Functions 59%
  6 被引用数 (Scopus)

• Linear phase paraunitary filter bank with filters of different lengths and its application in image compression

  Tran, T. D., Ikehara, M. & Nguyen, T. Q., 1999, In: IEEE Transactions on Signal Processing. 47, 10, p. 2730-2744 15 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image compression 91%
  • Image coding 60%
  • Mathematical transformations 31%
  • Factorization 30%
  50 被引用数 (Scopus)

• New approach to the design of linear phase biorthogonal filter banks

  Nagai, T. & Ikehara, M., 1999 7月 1, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 82, 7, p. 21-29 9 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Nonlinear programming 39%
  • Linear equations 19%

• Two-dimensional perfect reconstruction FIR filter banks with triangular supports

  Yan, H. & Ikehara, M., 1999 4月, In: IEEE Transactions on Signal Processing. 47, 4, p. 1003-1009 7 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Discrete Fourier transforms 19%
  • Cost functions 16%
  • Sampling 12%
  11 被引用数 (Scopus)
• 1998

  An analytical design for an equiripple FIR digital filter by transforming error response

  Sakuraba, R. & Ikehara, M., 1998 1月, In: Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi). 81, 1, p. 56-65 10 p.

  研究成果: Article › 査読

  • digital filters 100%
  • FIR filters 82%
  • Digital filters 78%
  • least squares method 52%
  • filters 31%

• Design of biorthogonal filter banks composed of linear phase iip filters

  Okuda, M., Ikehara, M. & Takahashl, S. I., 1998, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E81-A, 11, p. 2449-2454 6 p.

  研究成果: Article › 査読

  • Filter Banks 100%
  • IIR filters 94%
  • Filter banks 82%
  • Filter 66%
  • Design 46%

• Fast and stable least-squares approach for the design of linear phase FIR filters

  Okuda, M., Ikehara, M. & Takahashi, S. I., 1998, In: IEEE Transactions on Signal Processing. 46, 6, p. 1485-1493 9 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Computational complexity 24%
  29 被引用数 (Scopus)

• Least-square method for 2D FIR digital filters without matrix inversions

  Okuda, M., Ikehara, M. & Takahashi, S. I., 1998 5月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 81, 5, p. 12-21 10 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Digital filters 96%
  • Orthogonal functions 66%
  • Frequency bands 40%

• Least-squares approach to IIR digital filters and an application to equiripple solutions

  Okuda, M., Ikehara, M. & Takahashi, S. I., 1998 7月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 81, 7, p. 28-36 9 p.

  研究成果: Article › 査読

  • Chebyshev approximation 100%
  • IIR filters 76%
  • Digital filters 64%
  • Least squares approximations 43%
  • Computer simulation 16%

• Linear phase paraunitary filter bank with filters of different lengths and its application in image compression

  Tran, T. D., Ikehara, M. & Nguyen, T. Q., 1998 12月 1, In: IEEE Transactions on Signal Processing. 46, 5, p. 1477-1478 2 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Image compression 91%
  • Image coding 60%
  • Mathematical transformations 31%
  • Factorization 30%

• The design of two-channel perfect reconstruction IIR filter banks with causality

  Okuda, M., Fukuoka, T., Ikehara, M. & Takahashi, S. I., 1998 5月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 81, 5, p. 22-31 10 p.

  研究成果: Article › 査読

  • IIR filters 100%
  • Filter banks 87%
  • Lagrange multipliers 47%
  • Newton-Raphson method 43%
  • Recovery 26%
  2 被引用数 (Scopus)
• 1997

  A method of designing cosine-modulated 2D perfect reconstruction FIR filter banks with linear phase

  Nagai, T. & Ikehara, M., 1997 4月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 80, 4, p. 1-10 10 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Modulation 46%
  • Bandpass filters 30%
  • Decomposition 21%

• Cosine-modulated two-dimensional time-varying filter banks

  Imata, S., Ikehara, M. & Takahashi, S. I., 1997 11月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 80, 11, p. 46-54 9 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Sampling 31%
  • Time varying systems 17%

• Design and lattice structure of FIR paraunitary filter banks with linear phase

  Nagai, T., Kok, C. W., Ikehara, M. & Nguyen, T. Q., 1997, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E80-A, 4, p. 712-720 9 p.

  研究成果: Article › 査読

  • FIR Filter 100%
  • Filter Banks 87%
  • Lattice Structure 80%
  • FIR filters 72%
  • Filter banks 72%
  12 被引用数 (Scopus)

• Design of linear phase Mchannel perfect reconstruction FIR filter banks

  Nagai, T., Fuchie, T. & Ikehara, M., 1997 12月 1, In: IEEE Transactions on Signal Processing. 45, 9, 1 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Linear equations 32%
  • Nonlinear equations 32%
  2 被引用数 (Scopus)

• Design of linear phase M-channel perfect reconstruction FIR filter banks

  Nagai, T., Fuchie, T. & Ikehara, M., 1997 9月, In: IEEE Transactions on Signal Processing. 45, 9, p. 2380-2387 8 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • High pass filters 39%
  • Newton-Raphson method 33%
  • Linear equations 32%
  5 被引用数 (Scopus)