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 2022

• 122 Article
• 112 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

• Article

  A new class of 2‐D digital filters composed of all‐pass subfilters

  Toyoshima, H., Ikehara, M. & Takahashi, SI. I., 1990, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 73, 4, p. 91-98 8 p.

  研究成果: Article › 査読

  • Digital filters 100%
  • IIR filters 29%
  6 被引用数 (Scopus)

• A novel design of regular cosine-modulated filter banks for image coding

  Uto, T., Ikehara, M. & Ohue, K., 2009 1月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E92-A, 7, p. 1633-1641 9 p.

  研究成果: Article › 査読

  • Image Coding 100%
  • Filter Banks 81%
  • Filter banks 67%
  • Image coding 60%
  • Design 38%
  1 被引用数 (Scopus)

• Approximation of group delay response of allpass filters using weighted least square method

  Okuda, M., Matsuyama, K. & Ikehara, M., 1996 6月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 79, 6, p. 60-69 10 p.

  研究成果: Article › 査読

  • Group delay 100%
  • Initial value problems 22%
  • Linear equations 17%

• A recursive orthogonal wavelet device

  Yasuoka, H., Ikehara, M. & Isobe, H., 1994, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 77, 11, p. 91-101 11 p.

  研究成果: Article › 査読

  • IIR filters 100%
  • FIR filters 88%
  • Filter banks 87%
  • Digital filters 84%
  • Wavelet transforms 36%
  1 被引用数 (Scopus)

• A simplified lattice structure of two dimensional Generalized lapped orthogonal transform

  Yoshida, T., Kyochi, S. & Ikehara, M., 2011 2月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E94-A, 2, p. 671-679 9 p.

  研究成果: Article › 査読

  • Filter Banks 100%
  • Lattice Structure 91%
  • Filter banks 82%
  • Frequency Response 64%
  • Nonseparable 57%
  1 被引用数 (Scopus)

• Blind image deconvolution using specified 2-D HPF for feature extraction and conjugate gradient method in frequency domain

  Fujisawa, T. & Ikehara, M., 2017 3月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 3, p. 846-853 8 p.

  研究成果: Article › 査読

  • Feature Extraction 100%
  • High pass filters 88%
  • Conjugate gradient method 84%
  • Deconvolution 78%
  • Conjugate Gradient Method 72%

• Channel Attention GAN Trained with Enhanced Dataset for Single-Image Shadow Removal

  Abiko, R. & Ikehara, M., 2022, In: IEEE Access. 10, p. 12322-12333 12 p.

  研究成果: Article › 査読

  Open Access

  • Image acquisition 100%
  • Wavelength 61%
  • Cameras 61%
  • Color 41%
  • Light sources 31%

• 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)

• Complex Chebyshev approximation for infinite impulse response digital filters

  Okuda, M., Ikehara, M. & Takahashi, S. I., 1996 1月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 79, 1, p. 12-21 10 p.

  研究成果: Article › 査読

  • Chebyshev approximation 100%
  • IIR filters 76%
  • Digital filters 64%
  • Nonlinear equations 32%
  • Signal processing 24%

• 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)

• Construction of variable cutoff digital filter based on a changeover of taps

  Ikehara, M., Takahashi, SI. I. & Kato, M., 1989, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 72, 12, p. 13-22 10 p.

  研究成果: Article › 査読

  • Digital filters 100%
  • FIR filters 52%
  • Impulse response 32%
  • Wave filters 21%
  • IIR filters 19%

• Content aware image resizing with constraint of object aspect ratio preservation

  Mishiba, K., Ikehara, M. & Yoshitome, T., 2013 11月, In: IEICE Transactions on Information and Systems. E96-D, 11, p. 2427-2436 10 p.

  研究成果: Article › 査読

  • Aspect ratio 100%

• 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%

• 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 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)

• Design and implementation of linear‐phase two‐channel perfect reconstruction finite impulse response filter banks with equiripple stopband

  Nagai, T. & Ikehara, M., 1995 12月, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 78, 12, p. 27-36 10 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%

• 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 method of all-pass networks based on the eigen filter method with consideration of the stability

  Toguri, Y. & Ikehara, M., 1995 7月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E78-A, 7, p. 885-889 5 p.

  研究成果: Article › 査読

  • Filter Method 100%
  • Design Method 85%
  • Phase Error 51%
  • Exchange Algorithm 49%
  • Iteration 21%
  1 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%

• Design of 2‐D perfect reconstruction filter banks for arbitrary sampling lattices—design of 2‐D N‐th‐band digital filters

  Ikehara, M., Sawada, K., Isobe, H., Yamashita, A. & Kuroda, H., 1993, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 76, 12, p. 85-94 10 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Digital filters 96%
  • Sampling 63%
  • Discrete Fourier transforms 32%

• 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%

• Design of Complex All-Pass Networks Using Reméz Algorithm

  Ikehara, M., Funaishi, M. & Kuroda, H., 1992 8月, In: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 39, 8, p. 549-556 8 p.

  研究成果: Article › 査読

  • All-pass filters 100%
  • Digital filters 95%
  • IIR filters 28%
  31 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)

• 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)

• Design of IIR Digital Filters using All-Pass Networks

  Ikehara, M., Tanaka, H. & Kuroda, H., 1994 3月, In: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 41, 3, p. 231-235 5 p.

  研究成果: Article › 査読

  • IIR filters 100%
  • Digital filters 84%
  • All-pass filters 39%
  • Transfer functions 23%
  • Specifications 17%
  15 被引用数 (Scopus)

• Design of linear-phase M-channel perfect reconstruction finite impulse response filter banks using Lagrange-Newton method

  Nagai, T. & Ikehara, M., 1996 3月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 79, 3, p. 43-52 10 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Newton-Raphson method 99%
  • Filter banks 99%

• 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)

• Design of linear-phase perfect reconstruction nonuniform FIR filter banks

  Fuchie, T., Nagai, T. & Ikehara, M., 1997 10月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 80, 10, p. 51-59 9 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Frequency response 16%

• 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)

• Design of multirate bandpass digital filters with complex coefficients

  Ikehara, M. & Takahashi, S., 1988 1月, In: Electronics and Communications in Japan (Part I: Communications). 71, 1, p. 21-29 9 p.

  研究成果: Article › 査読

  • Digital filters 100%
  • Bandpass filters 95%
  • IIR filters 59%
  • FIR filters 52%
  • Sampling 33%
  1 被引用数 (Scopus)

• Design of multirate FIR digital filters with arbitrary passband

  Hirai, R., Ikehara, M. & Takahashi, S., 1989, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 72, 5, p. 82-93 12 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Digital filters 96%
  • Bandpass filters 91%
  • Wave filters 60%
  • Notch filters 55%

• Design of narrow‐band FIR filters using interpolation technique

  Hoshino, M., Ikehara, M. & Takahashi, SI. I., 1989, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 72, 9, p. 75-85 11 p.

  研究成果: Article › 査読

  • Cascade connections 100%
  • FIR filters 73%
  • Interpolation 56%
  • Digital filters 23%
  • Transfer functions 19%
  1 被引用数 (Scopus)

• Design of oversampled perfect reconstruction FIR filter banks

  Nagai, T. & Ikehara, M., 1997 10月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 80, 10, p. 78-86 9 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Frequency response 16%
  • Signal processing 14%
  1 被引用数 (Scopus)

• Design of perfect reconstruction FIR filter banks using DFT modulation

  Nagai, T., Tsutsui, S. & Ikehara, M., 1997 3月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 80, 3, p. 47-54 8 p.

  研究成果: Article › 査読

  • FIR filters 100%
  • Filter banks 99%
  • Discrete Fourier transforms 98%
  • Modulation 69%
  • Newton-Raphson method 16%

• Design of two‐channel perfect reconstruction QMF

  Ikehara, M., Yamashita, A. & Kuroda, H., 1993, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 76, 5, p. 28-38 11 p.

  研究成果: Article › 査読

  • Digital filters 100%
  4 被引用数 (Scopus)

• Detail preserving mixed noise removal by DWM filter and BM3D

  Yamaguchi, T., Suzuki, A. & Ikehara, M., 2017 11月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 11, p. 2451-2457 7 p.

  研究成果: Article › 査読

  • Median Filter 100%
  • Noise Removal 100%
  • Median filters 75%
  • Impulse Noise 47%
  • Impulse noise 31%
  4 被引用数 (Scopus)

• 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)

• 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%

• Dual-DCT-lifting-based lapped transform with improved reversible symmetric extension

  Suzuki, T. & Ikehara, M., 2017 5月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 5, p. 1109-1118 10 p.

  研究成果: Article › 査読

  • Image coding 100%
  • Transform 73%
  • Image Coding 54%
  • Computer hardware 29%
  • Hardware 20%

• Dynamic bandwidth allocation supporting diversified queue status reporting for EPON systems

  Murayama, D., Suzuki, K. I., Kubo, R. & Ikehara, M., 2016 8月, In: Journal of Optical Communications and Networking. 8, 8, p. 530-539 10 p., 000530.

  研究成果: Article › 査読

  • Passive optical networks 100%
  • Frequency allocation 93%
  • Ethernet 81%
  • Fiber optic networks 32%
  • Interoperability 15%

• Dynamic Bandwidth Allocation with PID-Based Request Threshold Controller for EPON Systems

  Murayama, D., Suzuki, K. I., Yoshimoto, N., Kubo, R. & Ikehara, M., 2014, In: ITE Transactions on Media Technology and Applications. 2, 4, p. 320-326 7 p.

  研究成果: Article › 査読

  • Passive optical networks 100%
  • Frequency allocation 93%
  • Fiber optic networks 82%
  • Ethernet 81%
  • Bandwidth 49%
  1 被引用数 (Scopus)

• 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)

• Fast and high quality image interpolation for single-frame using multi-filtering and weighted mean

  Yamaguchi, T. & Ikehara, M., 2017 5月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 5, p. 1119-1126 8 p.

  研究成果: Article › 査読

  • Image Interpolation 100%
  • Weighted Mean 71%
  • Filtering 58%
  • Image quality 54%
  • Interpolation 49%
  5 被引用数 (Scopus)

• 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)

• Fast edge preserving 2D smoothing filter using indicator function

  Abiko, R. & Ikehara, M., 2019 1月 1, In: IEICE Transactions on Information and Systems. E102D, 10, p. 2025-2032 8 p.

  研究成果: Article › 査読

  Open Access

  • Pixels 100%
  • Textures 26%
  • Image processing 26%
  4 被引用数 (Scopus)

• 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)

• 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%

• GAN-Based Image Deblurring Using DCT Loss with Customized Datasets

  Tomosada, H., Kudo, T., Fujisawa, T. & Ikehara, M., 2021, In: IEEE Access. 9, p. 135224-135233 10 p.

  研究成果: Article › 査読

  Open Access

  • Discrete cosine transforms 100%
  • Convolutional neural networks 53%
  • Videodisks 39%
  • Time 31%
  • Crystalline Texture 28%