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

• 933 被引用数
• 14 h-index
• 121 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

  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%
  3 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%

• GAN-Based Rain Noise Removal from Single-Image Considering Rain Composite Models

  Matsui, T. & Ikehara, M., 2020, In: IEEE Access. 8, p. 40892-40900 9 p., 9016251.

  研究成果: Article › 査読

  Open Access

  • Fog 100%
  • Rain 76%
  • Composite materials 40%
  • Composite Material 34%
  • Autonomous vehicles 24%
  11 被引用数 (Scopus)

• Generalized block-lifting factorization of M-channel biorthogonal filter banks for lossy-to-lossless image coding

  Suzuki, T., Ikehara, M. & Nguyen, T. Q., 2012 7月, In: IEEE Transactions on Image Processing. 21, 7, p. 3220-3228 9 p., 6168264.

  研究成果: Article › 査読

  • Filter banks 100%
  • Factorization 90%
  • Image coding 90%
  • Discrete wavelet transforms 32%
  22 被引用数 (Scopus)

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

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

  研究成果: Article › 査読

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

• 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%

• 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)

• High-Accuracy Image Rotation and Scale Estimation Using Radon Transform and Sub-Pixel Shift Estimation

  Fujisawa, T. & Ikehara, M., 2019, In: IEEE Access. 7, p. 22719-22728 10 p., 8643346.

  研究成果: Article › 査読

  Open Access

  • Radon 100%
  • Mathematical transformations 81%
  • Error 59%
  • Pixels 59%
  • Interpolation 16%
  5 被引用数 (Scopus)

• Higher-order feasible building blocks for lattice structure of oversampled linear-phase perfect reconstruction filter banks

  Tanaka, Y., Ikehara, M. & Nguyen, T. Q., 2009 9月 1, In: Signal Processing. 89, 9, p. 1694-1703 10 p.

  研究成果: Article › 査読

  • Filter banks 100%
  10 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)

• 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%

• Image interpolation using edge-directed smoothness measure filter

  Mishiba, K. & Ikehara, M., 2010 6月, In: IEICE Transactions on Information and Systems. E93-D, 6, p. 1618-1624 7 p.

  研究成果: Article › 査読

  • Interpolation 100%
  • Pixels 44%
  • Image quality 27%
  • Computational complexity 23%
  • Data storage equipment 17%
  3 被引用数 (Scopus)

• Image restoration of JPEG encoded images via block matching and wiener filtering

  Takagi, Y., Fujisawa, T. & Ikehara, M., 2017 9月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 9, p. 1993-2000 8 p.

  研究成果: Article › 査読

  • Block Matching 100%
  • Wiener Filtering 80%
  • Image Restoration 65%
  • Patch 53%
  • Image reconstruction 51%
  2 被引用数 (Scopus)

• Improved image denoising via RAISR with fewer filters

  Zin, T., Nakahara, Y., Yamaguchi, T. & Ikehara, M., 2021 12月, In: Computational Visual Media. 7, 4, p. 499-511 13 p.

  研究成果: Article › 査読

  Open Access

  • Image denoising 100%
  • Pixels 21%
  • Data storage equipment 17%
  • Costs 10%

• Improved seam merging for content-aware image resizing

  Mishiba, K., Ikehara, M. & Yoshitome, T., 2013 2月, In: IEICE Transactions on Information and Systems. E96-D, 2, p. 349-356 8 p.

  研究成果: Article › 査読

  • Merging 100%
  • Pixels 76%
  4 被引用数 (Scopus)

• Integer DCT based on direct-lifting of DCT-IDCT for lossless-to-lossy image coding

  Suzuki, T. & Ikehara, M., 2010 11月, In: IEEE Transactions on Image Processing. 19, 11, p. 2958-2965 8 p., 5475264.

  研究成果: Article › 査読

  • Discrete cosine transforms 100%
  • Image coding 88%
  • Computer hardware 25%
  34 被引用数 (Scopus)

• Integer discrete cosine transform via lossless Walsh-Hadamard transform with structural regularity for low-bit-word-length

  Suzuki, T. & Ikehara, M., 2010 4月, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E93-A, 4, p. 734-741 8 p.

  研究成果: Article › 査読

  • Discrete Cosine Transform 100%
  • Hadamard Transform 97%
  • Walsh transforms 96%
  • Hadamard transforms 94%
  • Walsh Transform 92%
  6 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)

• 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., 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)

• 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%

• Linear‐phase biorthogonal wavelet function with arbitrary regularity

  Yasuoka, H., Sakamoto, Y. & Ikehara, M., 1995 6月, In: Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 78, 6, p. 30-40 11 p.

  研究成果: Article › 査読

  • Digital filters 100%
  • Function evaluation 54%
  • FIR filters 52%
  • Wavelet transforms 43%
  • Image processing 36%

• Local Image Denoising Using RAISR

  Zin, T., Seta, S., Nakahara, Y., Yamaguchi, T. & Ikehara, M., 2022, In: IEEE Access. 10, p. 22420-22428 9 p.

  研究成果: Article › 査読

  Open Access

  • Image denoising 100%
  • Deep learning 76%
  • Costs 16%
  • Time 15%

• 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%

• 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)

• M-channel paraunitary filter banks based on direct lifting structure of building block and its inverse transform for lossless-to-lossy image coding

  Suzuki, T. & Ikehara, M., 2010 1月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E93-A, 8, p. 1457-1464 8 p.

  研究成果: Article › 査読

  • Image Coding 100%
  • Filter Banks 81%
  • Inverse transforms 77%
  • Building Blocks 69%
  • Filter banks 67%

• 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)

• Mixed noise removal of image with interpolation

  Zin, T., Yamaguchi, T. & Ikehara, M., 2020, In: IEEJ Transactions on Electronics, Information and Systems. 140, 8, p. 1010-1018 9 p.

  研究成果: Article › 査読

  • Interpolation 100%
  • Impulse noise 83%
  • Textures 37%
  • Surface fitting 33%
  • Image communication systems 30%

• Multiplierless lifting-based fast X transforms derived from fast Hartley transform factorization

  Suzuki, T., Kyochi, S., Tanaka, Y. & Ikehara, M., 2018 1月 1, In: Multidimensional Systems and Signal Processing. 29, 1, p. 99-118 20 p.

  研究成果: Article › 査読

  • Factorization 100%
  • Fast Fourier transforms 95%
  • Transform 73%
  • Image coding 66%
  • Image processing 52%
  2 被引用数 (Scopus)

• Multiresolution image representation using combined 2-D and 1-D directional filter banks

  Tanaka, Y., Ikehara, M. & Nguyen, T. Q., 2009, In: IEEE Transactions on Image Processing. 18, 2, p. 269-280 12 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • Wavelet transforms 83%
  • Image denoising 35%
  • Image coding 30%
  • Costs 11%
  32 被引用数 (Scopus)

• Multi-stage dense CNN demosaicking with downsampling and re-indexing structure

  Yamaguchi, T. & Ikehara, M., 2020, In: IEEE Access. 8, p. 175160-175168 9 p.

  研究成果: Article › 査読

  Open Access

  • Color 100%
  • Flow 90%
  • Pixels 34%
  • Image quality 21%
  • Experiments 8%
  1 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%

• 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%

• Noise removal based on surface approximation of color line

  Manabe, K., Yamaguchi, T. & Ikehara, M., 2018 9月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E101A, 9, p. 1567-1574 8 p.

  研究成果: Article › 査読

  • Noise Removal 100%
  • Surface Approximation 94%
  • Color 50%
  • Line 40%
  • Denoising 29%

• 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%

• 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)

• Random-Valued impulse noise removal using non-local search for similar structures and sparse representation

  Tsuda, K., Fujisawa, T. & Ikehara, M., 2017 10月 1, In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E100A, 10, p. 2146-2153 8 p.

  研究成果: Article › 査読

  • Impulse Noise 100%
  • Noise Removal 90%
  • Sparse Representation 77%
  • Impulse noise 65%
  • Pixels 41%

• Realization of one-dimensional nonuniform-band maximally decimated filter banks using two-dimensional filters

  Fukuoka, T., Ozawa, H., Ikehara, M. & Takahashi, S. I., 1996 3月, In: Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi). 79, 3, p. 1-10 10 p.

  研究成果: Article › 査読

  • Filter banks 100%
  • High pass filters 39%
  • Frequency response 27%

• Residual Learning of Video Frame Interpolation Using Convolutional LSTM

  Suzuki, K. & Ikehara, M., 2020, In: IEEE Access. 8, p. 134185-134193 9 p., 9145730.

  研究成果: Article › 査読

  Open Access

  • Ablation 100%
  • Motion estimation 91%
  • Interpolation 72%
  • Flow 55%
  • Optical flows 31%
  4 被引用数 (Scopus)