2017

学術論文誌Journal Papers

  1. Taizo Suzuki and Masaaki Ikehara, Dual-DCT-Lifting-Based Lapped Transform with Improved Reversible Symmetric Extension, IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E100-A, No. 5, pp. 1109-1118 May. 2017.
  2. Takanori Fujisawa and Masaaki Ikehara, Blind Image Deconvolution using Specified 2-D HPF for Feature Extraction and Conjugate Gradient Method in Frequency Domain, IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, Vol. E100-A, No. 3, pp. 846-853 Mar. 2017.

国際会議International Conferences

  1. Takanori Fujisawa and Masaaki Ikehara, Color Image Coding based on Linear Combination of Adaptive Colorspaces, in The 42nd IEEE International Conference on Acoustics, Speech and Signal Processing, Mar. 2017.
  2. Aiko Suzuki, Takuro Yamaguchi and Masaaki Ikehara, Mixed Noise Removal by DWM Filter and BM3D, in 2017 International Workshop on Advanced Image Technology (IWAIT 2017), Jan. 2017.
  3. Tomohiro Senoo, Takanori Fujisawa and Masaaki Ikehara, A Fast and Robust Algorithm for Multi-frame Super-resolution by Frequency Domain Approach, in 2017 International Workshop on Advanced Image Technology (IWAIT 2017), Jan. 2017.
  4. Yutaka Takagi, Takanori Fujisawa and Masaaki Ikehara, Image Restoration of JPEG Coded Images via Block Matching and Wiener Filtering, in 2017 International Workshop on Advanced Image Technology (IWAIT 2017), Jan. 2017.

国内研究会Domestic Conferences

  1. 谷川 諒, 藤沢貴典, 池原雅章 複数枚のぼけとノイズ画像の加重平均を利用した画像復元, 信号処理研究会 (SIP), 信学速報 vol. 116, no. 476 pp. 165-170 1月 2017年

2016

学術論文誌Journal Papers

  1. Takanori Fujisawa, Taichi Yoshida, Kazu Mishiba, and Masaaki Ikehara, Single Image Super Resolution by L2 Approximation with Random Sampled Dictionary, IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, Vol. E99-A, No. 2, pp. 612-620. Feb. 2016.

国際会議International Conferences

  1. Takanori Fujisawa and Masaaki Ikehara, Blind Image Deconvolution using Specified HPF for Feature Extraction and Conjugate Gradient Method in Frequency Domain, in 2016 IEEE International Conference on Image Processing (ICIP 2016), Sept 2016.
  2. Takuro Yamaguchi and Masaaki Ikehara, The Quick and High Quality Image Interpolation for Single Image using Multi-filtering and Weighted Mean, in 2016 IEEE International Conference on Image Processing (ICIP 2016), Sept 2016.
  3. Ryo Fujimoto, Takanori Fujisawa and Masaaki Ikehara, Sub-pixel Shift Estimation of Image based on the Least Squares Approximation in Phase Region, in 2016 European Signal Processing Conference (EUSIPCO 2016), Sept 2016.
  4. Hayato Katase, Takuro Yamaguchi, Takanori Fujisawa, Masaaki Ikehara, Image Noise Level Estimation by Searching for Smooth Patches with Discrete Cosine Transform, in 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS 2016), Oct 2016.
  5. Tomohiro Watanabe, Takanori Fujisawa and Masaaki Ikehara, Vocal Separation Using Improved Robust Principal Component Analysis and Post-Processing, in 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS 2016), Oct 2016.

国内研究会Domestic Conferences

  1. 藤沢 貴典, 池原 雅章, HPFによる特徴抽出と共役勾配法を用いた画像のBlind Deconvolution第31回信号処理シンポジウム, 2016 年11月, A5-2
  2. 山口 拓郎, 池原 雅章, マルチフィルタリングによる高速画像補間第31回信号処理シンポジウム, 2016 年11月, A6-1
  3. 高木 寛, 池原 雅章, 邵 明, 仲宗根 陽一, 局所ウィナーフィルタリングによる画像のノイズ除去電子情報通信学会技術研究報告, ieice technical report : 信学技報, 3月 2016, pp. 129-134.
  4. 真鍋 昂一郎, 山口 拓郎, 池原 雅章, Color Line特性の平面近似によるノイズ除去手法電子情報通信学会技術研究報告, ieice technical report : 信学技報, 7月 2016, pp. 37-42.
  5. 津田 健吾, 池原 雅章, 類似構造の非局所的探索とスパース近似を用いたランダム値インパルスノイズ除去, 電子情報通信学会技術研究報告, ieice technical report : 信学技報, 7月 2016, pp. 1-6.

2015

学術論文誌Journal Papers

国際会議International Conferences

  1. Takuro Yamaguchi, Masaaki Ikehara, and Yasuhiro Nakajima, Image Interpolation based on Weighting Function of Gaussian, in Asilomar conference on signals, systems and computers, Nov 2015.
  2. Shoji Sakamoto, Takanori Fujisawa, and Masaaki Ikehara, Colorization-based Image Coding based on Superpixel, in International Conference on Information, Communications and Signal Processing (ICICS), Singapore, Dec 2015.
  3. Yutaka Takagi, and Masaaki Ikehara, Image Denoising by Arithmetic Means Based on Similarity, in International Conference on Information, Communications and Signal Processing (ICICS), Singapore, Dec 2015.
  4. Eri Ochiai, Takanori Fujisawa and Masaaki Ikehara, Vocal Separation by Constrained Non-Negative Matrix Factorization, in The Asia-Pacific Signal and Information Processing Association (APSIPA), Dec 2015.

国内研究会Domestic Conferences

  1. 山口 拓郎, 中島 康博, 池原 雅章, Image Interpolation based on Weighting Function of Gaussian, 電子情報通信学会技術研究報告, ieice technical report : 信学技報, 3月 2015, pp. 181-185.
  2. 坂本 匠司, 藤沢 貴典, 池原 雅章, Superpixelを用いた画像のColorization符号化, 電子情報通信学会技術研究報告, ieice technical report : 信学技報 (画像工学), 6月 2015, pp. 75-79.
  3. 樋口 聡一郎, 山口 拓郎, 藤沢 貴典, 池原 雅章, 線形変換を用いたカラー画像のブロックベース符号化, 第30回信号処理シンポジウム, 2015 年11月, P1-17, 福島
  4. 藤本 遼, 藤沢 貴典, 池原 雅章, 位相差の最小二乗近似による画像の非整数精度のシフト量推定 第30回信号処理シンポジウム, 2015 年11月, A5-1, 福島

2014

学術論文誌Journal Papers

  1. T. Suzuki and M. Ikehara, Reversible symmetric nonexpansive convolution: an effective image boundary processing for mbiM-channel lifting-based linear-phase filter banks, Image processing, ieee transactions on, vol. 23, iss. 6, pp. 2744-2749, 2014.
  2. T. Yoshida, T. Suzuki, and M. Ikehara, Adaptive reversible data hiding via integer-to-integer subband transform and adaptive generalized difference expansion method, Ieice transactions on fundamentals of electronics, communications and computer sciences, vol. 97, iss. 1, pp. 384-392, 2014.
  3. Murayama, D., Suzuki, K. I., Yoshimoto, N., Kubo, R. and Ikehara, M., Dynamic Bandwidth Allocation with PID-Based Request Threshold Controller for EPON Systems, ITE Transactions on Media Technology and Applications, Vol. 2, No. 4, pp. 320-326, 2014.

国際会議International Conferences

  1. Ikuo Degawa, Taichi Yoshida, Kazu Mishiba, Masaaki Ikehara, Single Image Super Resolution by l2 Approximation without Learning in International Workshop on Advanced Image Technology (IWAIT) , Jan. 2014
  2. T. Fujisawa, I. Degawa, and M. Ikehara, NMF-based multiple pitch estimation using sparseness and inter-frame continuity constraints, in Multimedia signal processing (MMSP), 2014 ieee 16th international workshop on, 2014, pp. 1-5.
  3. T. Suzuki and M. Ikehara, Simplified dct-lifting-based reversible lapped transforms using parallel processing of two same type lapped transforms, in Image processing (ICIP), 2014 ieee international conference on, 2014, pp. 5586-5590.
  4. S. Kyochi and M. Ikehara, Fractional cycle spinning via modulated lapped transform for overcomplete image representation, in Image processing (ICIP), 2014 ieee international conference on, 2014, pp. 2664-2668.
  5. K. Iwamoto, T. Yoshida, and M. Ikehara, Super-resolutions based on shock filter and non local means with bm3d for congruity, in Tencon 2014 ieee region 10 conference, 2014, pp. 1-6.
  6. Taichi Yoshida, Masaaki Ikehara, Image super-resolution based on shock filter and non-local means, in The Asia-Pacific Signal and Information Processing Association (APSIPA) Siem Reap, Dec 2014

国内研究会Domestic Conferences

  1. 藤沢 貴典, 出川 幾夫, 池原 雅章, スパース性とフレーム間連続性を考慮したNMFによる楽曲の音高推定, 電子情報通信学会技術研究報告, ieice technical report : 信学技報 (回路とシステム), 7月 2014, pp. 265-270.
  2. 豊田 真帆, 池原 雅章, 吉田 太一, 画像平均とTVを用いた逆畳込みによる画像のノイズ除去, 第29回信号処理シンポジウム 11月 2014, pp. 353-358.
  3. 鈴木 翔太郎, 池原 雅章, 色差を考慮したマルチスケール勾配に基づく指向性デモザイキング, 第29回信号処理シンポジウム, 11月 2014, pp. 535-540.

2013

学術論文誌Journal Papers

  1. Taizo Suzuki and Masaaki Ikehara, Integer fast lapped transforms based on direct-lifting of DCTs for lossy-to-lossless image coding, EURASIP J. Image. Video Process., vol. 2013 , no. 65, pp. 1-9, Dec. 2013, Open Access.
  2. Taichi Yoshida, Seisuke Kyochi, and Masaaki Ikehara, Two dimensional M-channel non-separable filter banks based on cosine modulated filter banks with diagonal shifts, IEICE Trans. Fundamentals, vol. E96-A , no. 8, pp. 1685-1694, Aug. 2013.
  3. Yuichi Tanaka, Taichi Yoshida, Madoka Hasegawa, Shigeo Kato, and Masaaki Ikehara, Rate-dependent seam carving and its application to content-aware image coding, APSIPA Trans. Signal. Info. Process., vol. 2, no. -, pp. 1-15, 2013.

国際会議International Conferences

  1. Taichi Yoshida, Tomoya Murakami, and Masaaki Ikehara, Image super-resolution method based on non-local means and self similarity, Proc. of IEEE ISPCAS 2013, Naha, Japan, Nov. 2013.
  2. Naoki Furuhashi, Azusa Oota, Taichi Yoshida, and Masaaki Ikehara, Image denoising by adaptive directional lifting-based discrete wavelet transform and quantization, Proc. of IEEE ACSSC 2013, Pacific Grove, CA, Nov. 2013.
  3. Yasuhiro Nakajima, Takashi Ueno, Taichi Yoshida, and Masaaki Ikehara, Colorization based on piecewise autoregressive model, Proc. of IEEE ACSSC 2013, Pacific Grove, CA, Nov. 2013.
  4. Ikuo Degawa, Kei Sato, and Masaaki Ikehara, Multipitch estimation and instrument recognition by exemplar-based sparse representation, Proc. of IEEE ACSSC 2013, Pacific Grove, CA, Nov. 2013.
  5. Taizo Suzuki, Seisuke Kyochi, Yuichi Tanaka, Masaaki Ikehara, and Hirotomo Aso, Multiplierless lifting based FFT via fast Hartley transform, Proc. of IEEE ICASSP 2013, Vancouver, Canada, May 2013.

国内研究会Domestic Conferences

  1. 岩本健, 吉田太一, 池原雅章, 自己相似性、合同性を用いた画像の超解像, 第28回信号処理シンポジウム, 下関, B4-4, 2013年11月.
  2. 鈴木大三, 池原雅章, M分割リフティングベース線形位相フィルタバンクのための可逆対称拡張法, 第28回信号処理シンポジウム, 下関, P1-3, 2013年11月.
  3. 吉田太一, 古橋直樹, 池原雅章, 1次元方向性冗長フィルタバンクと画像のスパース性を用いた合成による画像ノイズ除去, 第28回信号処理シンポジウム, 下関, B1-2, 2013年11月.
  4. 吉田太一, 村上朋也, 池原雅章, Non-local Meansを基にした画像拡大, 信号処理研究会, SIP2012-136, pp. 51-55, 鶴岡, 2013年3月.
  5. 我妻大樹, 三柴数, 池原雅章, L2ノルムによる自己学習型超解像, 信号処理研究会, SIP2012-137, pp. 57-61, 鶴岡, 2013年3月.

2012

学術論文誌Journal Papers

  1. Taizo Suzuki, Masaaki Ikehara, and Truong Q. Nguyen, Generalized block-lifting factorization of M-channel biorthogonal filter banks for lossy-to-lossless image coding, IEEE Trans. Image Process., vol. 21, no. 6, pp. 3220-3228, 2012.

国際会議International Conferences

  1. Takashi Ueno, Taichi Yoshida, and Masaaki Ikehara, Color image coding based on the colorization, Proc. of APSIPA ASC 2012, Hollywood, CA, Dec. 2012.
  2. Taichi Yoshida, Yusuke Okamura, Taizo Suzuki, and Masaaki Ikehara, Adaptive reversible data hiding in frequency domain via integer-to-integer transform, Proc. of APSIPA ASC 2012, Hollywood, CA, Dec. 2012.
  3. Taichi Yoshida, Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, and Masaaki Ikehara, Wavelet-based content-aware image coding with rate-dependent seam carving, Proc. of IEEE ICIP 2012, Orlando, FL, Oct. 2012.
  4. Taizo Suzuki and Masaaki Ikehara, Reversible non-expansive symmetric convolution for M-channel lifting based linear-phase filter banks, Proc. of IEEE ICIP 2012, Orlando, FL, Oct. 2012.
  5. Kazu Mishiba and Masaaki Ikehara, Image resizing using improved seam merging, Proc. of IEEE ICASSP 2012, Kyoto, Japan, Mar. 2012.
  6. Seisuke Kyochi, Yuichi Tanaka, and Masaaki Ikehara, On factorizations of conjugate symmetric Hadamard transform and its relationship with DCT, Proc. of IEEE ICASSP 2012, Kyoto, Japan, Mar. 2012.
  7. Taizo Suzuki, Yuichi Tanaka, Masaaki Ikehara, and Hirotomo Aso, Multiplierless fast algorithm for DCT via fast Hartley transform, Proc. of IEEE ICASSP 2012, Kyoto, Japan, Mar. 2012.

国内研究会Domestic Conferences

  1. 我妻大樹, 神野裕也, 三柴数, 池原雅章, Bootstrapping image super resolution using sparse representation, 第27回信号処理シンポジウム, 石垣, A11-4, 2012年11月.
  2. 鈴木大三, 京地清介, 田中雄一, 池原雅章, 阿曽弘具, “高速ハートレー変換に基づくFFTアルゴリズム,” 第27回信号処理シンポジウム, 石垣, C4-4, 2012年11月.
  3. 石川紘一, 池原雅章, 三柴数, “2次元高域フィルタを用いた画像の手ぶれ補正,” 第27回信号処理シンポジウム, 石垣, A4-1, 2012年11月.
  4. 太田梓, 吉田太一, 池原雅章, “JPEG再適用を利用したJPEG圧縮画像の画質改善に関する検討,” PCSJ/IMPS 2012, 湯河原, P-2-13, 2012年10月.
  5. 吉田太一, 池原雅章, “コサイン変調に基づく方向選択型フィルタバンク,” 信号処理研究会, pp. 85-90, 福岡, 2012年1月.

2011

学術論文誌Journal Papers

  1. Taichi Yoshida, Taizo Suzuki, Seisuke Kyochi, and Masaaki Ikehara, “Two dimensional non-separable adaptive directional lifting structure of discrete wavelet transform,” IEICE Trans. Fundamentals, vol. E94-A, no. 10, pp. 1920-1927, 2011.
  2. Seisuke Kyochi, Takafumi Shimizu, and Masaaki Ikehara, “A linear optimization of dual-tree complex wavelet transform,” IEICE Trans. Fundamentals, vol. E94-A, no. 6, pp. 1386-1393, 2011.
  3. 白井啓一郎, 池原雅章, 岡本正行, “フラッシュ画像とノンフラッシュ画像の色彩と陰影の変換による鮮鋭画像生成法,” 信学論(A), vol. J94-A, no. 4, pp. 275-284, 2011.
  4. 三柴数, 池原雅章, “ウェーブレット変換領域におけるシームカービング,” 映情学誌, vol. , no. , pp. -, 2011.
  5. Taichi Yoshida, Seisuke Kyochi, and Masaaki Ikehara, “A simplified lattice structure of two dimensional generalized lapped orthogonal transform”, IEICE Trans. Fundamentals, vol. E94-A, no. 2, pp. 671-679.
  6. 三柴数, 池原雅章, “画素の接続関係を考慮した非線形画像リサイズ,” 信学論(D), vol. J94-D, no. 1, pp. 356-364, 2011.

国際会議International Conferences

  1. Kazu Mishiba and Masaaki Ikehara, “Grid-Based Image Resizing with User-Selected Constraint,” Proc. of APSIPA ASC 2011, Xi’an, China, Oct. 2011.
  2. Takayuki Kimura, Kazu Mishiba, Shunsuke iwamura, Keiichiro Shirai, and Masaaki Ikehara, “Region boundary reconstruction method for structure-aware image inpainting,” Proc. of APSIPA ASC 2011, Xi’an, China, Oct. 2011.
  3. Keiichiro Shirai, Masaaki Ikehara, and Masayuki Okamoto, “Noiseless no-flash photo creation by color transform of flash image,” Proc. of IEEE ICIP 2011, Brussels, Belgium, Sep. 2011.
  4. Kazu Mishiba and Masaaki Ikehara, “Seam carving in wavelet transform domain,” Proc. of IEEE ICIP 2011, Brussels, Belgium, Sep. 2011.
  5. Taizo Suzuki, Masaaki Ikehara, and Truong Q. Nguyen, “Block-lifting factorization of M-channel biorthogonal filter banks with an arbitrary McMillan? degree,” Proc. of IEEE ICIP 2011, Brussels, Belgium, Sep. 2011.
  6. Kazu Mishiba and Masaaki Ikehara, “Seam merging for image resizing with structure preservation,” Proc. of IEEE ICASSP 2011, Prague, Czech Republic, May 2011.
  7. Taichi Yoshida, Taizo Suzuki, Seisuke Kyochi, and Masaaki Ikehara, “Two dimensional non-separable adaptive directional lifting structure of discrete wavelet transform,” Proc. of IEEE ICASSP 2011, Prague, Czech Republic, May 2011.
  8. Taizo Suzuki and Masaaki Ikehara, “Integer fast lapped orthogonal transform based on direct-lifting of DCTs for lossless-to-lossy Image coding,” Proc. of IEEE ICASSP 2011, Prague, Czech Republic, May 2011.
  9. Taizo Suzuki and Masaaki Ikehara, “A simplified realization of normalized integer WHT for multiplierless integer DCT,” Proc. of IEEE DSP/SPE Workshop 2011, Sedona, AZ, Jan. 2011.

国内研究会Domestic Conferences

  1. 外川敬太, 池原雅章, “音域制限を利用したヴォーカルメロディの抽出,” 第26回信号処理シンポジウム, 札幌, A8-11, 2011年11月.
  2. 鈴木大三, 田中雄一, 池原雅章, 阿曽弘具, “高速ハートレー変換に基づく高速なDCTアルゴリズム,” 第26回信号処理シンポジウム, 札幌, C3-4, 2011年11月.
  3. 三柴数, 池原雅章, “ユーザー指定の制約を用いたグリッドベースコンテンツ適応型画像リサイズ,” 第26回信号処理シンポジウム, 札幌, A1-2, 2011年11月.
  4. 岡村裕介, 吉田太一, 鈴木大三, 池原雅章, “整数離散コサイン変換を用いた画像への付加情報の可逆的埋込み法,” PCSJ/IMPS 2011, 湯河原, I4-14, 2011年10月.
  5. 千代島卓也, 吉田太一, 池原雅章, “Grouplet変換を用いた画像の超解像,” PCSJ/IMPS 2011, 湯河原, I3-03, 2011年10月.
  6. 荘司剛規, 三柴数, 池原雅章, “正則化を用いた方向選択性デモザイキング,” PCSJ/IMPS 2011, 湯河原, I3-01, 2011年10月.
  7. 大内亮, 池原雅章, 三柴数, “ぶれ方向推定における処理時間の高速化,” PCSJ/IMPS 2011, 湯河原, I1-04, 2011年10月.
  8. 三柴数, 池原雅章, “ウェーブレット変換領域におけるシームカービング,” 信号処理研究会, pp. 341-346, 石垣, 2011年3月.
  9. 吉田太一, 池原雅章, “サブバンド特性を用いた離散ウェーブレット変換による画像符号化,” 信号処理研究会, pp. 25-30, 屋久島, 2011年1月.

2010

学術論文誌Journal Papers

  1. Taizo Suzuki and Masaaki Ikehara, “Integer DCT based on direct-lifting of DCT-IDCT for lossless-to-lossy image coding,” IEEE Trans. Image Process., vol. 19, no. 11, pp. 2958-2965, 2010.
  2. 三柴数, 池原雅章, “ブロックベースシームカービングを用いた画像のリサイズ,” 信学論(A), vol. J93-A, no. 9, pp. 605-612, 2010.
  3. Taizo Suzuki and Masaaki Ikehara, “M-channel paraunitary filter banks based on direct lifting structure of building block and its inverse transform for lossless-to-lossy image coding,” IEICE Trans. Fundamentals, vol. E93-A, no. 8, pp. 1457-1464, 2010.
  4. Taizo Suzuki, Hideaki Hayano, and Masaaki Ikehara, “Realization of IntDCT with arbitrary block size using relation between DCT-IV and parallel block system of DCT-II,” Journal of Signal Processing, vol. 14, no. 4, pp. 289-292, July 2010, (Selected Paper).
  5. Kazu Mishiba and Masaaki Ikehara, “Image interpolation using edge-directed smoothness measure filter,” IEICE Trans. Info & Syst., vol. E93-D, no. 6, pp. 1618-1624, 2010.
  6. Taizo Suzuki and Masaaki Ikehara, “Integer discrete cosine transform via lossless Walsh-Hadamard transform with structural regularity for low-bit-word-length,” IEICE Trans. Fundamentals, vol. E93-A, no. 4, pp. 734-741, 2010.
  7. Seisuke Kyochi and Masaaki Ikehara, “A class of near shift-invariant and orientation-selective transform based on delay-less oversampled even-stacked cosine-modulated filter banks,” IEICE Trans. Fundamentals, vol. E93-A, no. 4, pp. 724-733, 2010.
  8. Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, Masaaki Ikehara, and Truong Q. Nguyen, “Adaptive directional wavelet transform based on directional prefiltering,” IEEE Trans. Image Process., vol. 19, no. 4, pp. 934-945 , 2010, (第26回テレコムシステム技術賞).
  9. 白井啓一郎, 庄司久人, 池原雅章, “カラー画像平滑化のための色線形性を考慮した異方性拡散,” 信学論(A), vol. J93-A, no. 3, pp. 181-189, 2010.

国際会議International Conferences

  1. Seisuke Kyochi, Junya Aoyama, and Masaaki Ikehara, “A direction-adaptive image coding using two-dimensional direct lifting wavelet transform,” Proc. of IEEE ICIP 2010, Hong Kong, Sep. 2010.
  2. Taichi Yoshida, Seisuke Kyochi, and Masaaki Ikehara, “A simplified lattice structure of two-dimensional generalized lapped orthogonal transform (2-D GenLOT) for image coding,” Proc. of IEEE ICIP 2010, Hong Kong, Sep. 2010.
  3. Kazu Mishiba, Taizo Suzuki, and Masaaki Ikehara, “Edge-adaptive image interpolation using constrained least squares,” Proc. of IEEE ICIP 2010, Hong Kong, Sep. 2010.
  4. Taizo Suzuki and Masaaki Ikehara, “Realization of lossless-to-lossy image coding compatible with JPEG standard by direct-lifting of DCT-IDCT,” Proc. of IEEE ICIP 2010, Hong Kong, Sep. 2010.
  5. Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, Taizo Suzuki, and Masaaki Ikehara, “Direction scalability of adaptive directional wavelet transform: An approach using block-lifting based DCT and SPIHT,” Proc. of IEEE ISCAS 2010, Paris, France, June 2010, (Invited Paper).
  6. Taizo Suzuki and Masaaki Ikehara, “Structurally regular integer discrete cosine transform for low-bit-word-length coefficients,” Proc. of IEEE ISCAS 2010, Paris, France, May 2010.
  7. Seisuke Kyochi and Masaaki Ikehara, “A directional and shift-invariant transform based on cosine-sine modulated filter banks and its application,” NCSP 2010, Honolulu, Hawaii, Mar. 2010.
  8. Taizo Suzuki, Hideaki Hayano, and Masaaki Ikehara, “M-channel IntDCT using relation between DCT-IV and block parallel system of DCT-II,” NCSP 2010, Honolulu, Hawaii, Mar. 2010, (Student Paper Award).
  9. Shunsuke Iwamura, Seisuke Kyochi, Naoto Kaneko, and Masaaki Ikehara, “Image interpolation using cosine-sine modulated filter bank,” LASCAS 2010, Iguacu Falls, Brazil, Feb. 2010.

国内研究会Domestic Conferences

  1. 三柴数, 池原雅章, “画素の接続関係を考慮した非線形画像リサイズ,” 第25回信号処理シンポジウム, C4-1, 奈良, 2010年11月.
  2. 吉田太一, 鈴木大三, 京地清介, 池原雅章, “2次元非可分型離散ウェーブレット変換の方向適応型リフティング実現,” 第25回信号処理シンポジウム, 奈良, C1-2, 2010年11月.
  3. 吉田太一, 池原雅章, “2次元一般化重複直交変換のラティス構造,” 信号処理研究会, pp. 163-168, 北見, 2010年6月.
  4. 白井啓一郎, 池原雅章, 岡本正行, “フラッシュ画像とノンフラッシュ画像の色彩と陰影の変換による鮮鋭画像生成法,” 画像工学研究会, pp. 49-54, 宇都宮, 2010年4月.
  5. 三柴数, 池原雅章, “シームカービングを用いたリサイズ可能な画像の圧縮,” 画像工学研究会, pp. 43-48, 宇都宮, 2010年4月.
  6. 鈴木大三, 池原雅章, “リフティング係数の低ビット語長割当を考慮した正規化整数WHTに基づく整数DCT,” 画像工学研究会, pp. 37-42, 宇都宮, 2010年4月.
  7. 京地清介, 宇戸寿幸, 池原雅章, “コサイン・サイン変調フィルタバンクを用いた方向選択性及びシフト不変性を有するウェーブレット変換の実現と応用,” 信号処理研究会, pp. 153-157, 宮古島, 2010年3月.
  8. 鈴木大三, 池原雅章, “DCTと逆DCTの直接リフティングを用いた整数DCTの実現,” 信号処理研究会, pp. 87-91, 福岡, 2010年1月.

2009

学術論文誌Journal Papers

  1. 鈴木大三, 池原雅章, “ブロックリフティング分解を用いたM分割整数離散コサイン変換,” 信学論(A), vol. J92-A, no. 11, pp. 888-900, 2009.
  2. 鈴木大三, 池原雅章, “並列リフティング構造を用いたM分割完全再構成フィルタバンク,” 信学論(A), vol. J92-A, no. 10, pp. 659-668, 2009.
  3. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “Higher-order feasible building blocks for lattice structure of oversampled linear-phase perfect reconstruction filter banks,” Signal Processing (Elsevier), vol. 89, no. 9, pp. 1694-1703, 2009.
  4. Toshiyuki Uto, Masaaki Ikehara, and Kenji Ohue, “A novel design of regular cosine-modulated filter banks for image coding,” IEICE Trans. Fundamentals, vol. E92-A, no. 7, pp. 1633-1641, 2009.
  5. Seisuke Kyochi, Shizuka Higaki, Yuichi Tanaka, and Masaaki Ikehara, “A bottom-up design approach of critically sampled contourlet transform for efficient image representation,” IEICE Trans. Fundamentals, vol. E92-A, no. 3, pp. 762-771, 2009.
  6. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “Multiresolution image representation using combined 2-D and 1-D directional filter banks,” IEEE Trans. Image Process., vol. 18, no. 2, pp. 269-280, 2009 (ranked # 87 among the top 100 downloaded IEEE Xplore articles in Jan. 2009).

国際会議International Conferences

  1. Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, Masaaki Ikehara, and Truong Q. Nguyen, “Adaptive directional wavelet transform using pre-directional filtering,” Proc. of IEEE ICIP 2009, Cairo, Egypt, Nov. 2009.
  2. Taizo Suzuki and Masaaki Ikehara, “Lifting factorization based on block parallel system of M-channel perfect reconstruction filter banks,” Proc. of EURASIP EUSIPCO 2009, Glasgow, Scotland, Aug. 2009.
  3. Seisuke Kyochi, Toshiyuki Uto, and Masaaki Ikehara, “Dual-tree complex wavelet transform arising from cosine-sine modulated filter banks,” Proc. of IEEE ISCAS 2009, Taipei, Taiwan, May 2009.
  4. Yuichi Tanaka, Masaaki Ikehara, Truong Q. Nguyen, “An adaptive extension of combined 2D and 1D-directional filter banks,” Proc. of IEEE ISCAS 2009, Taipei, Taiwan, May 2009.
  5. Takafumi Shimizu, Seisuke Kyochi, and Masaaki Ikehara, “A design of dual-tree complex wavelet transform based on least squares method,” Proc. of IEEE DSP/SPE Workshop 2009, Marco Island, FL, Jan. 2009.
  6. Kazu Mishiba, Keiichiro Shirai, and Masaaki Ikehara, “Quadrangular remeshing with global alignment,” Proc. of IEEE DSP/SPE Workshop 2009, Marco Island, FL, Jan. 2009.
  7. Shunsuke Iwamura, Kenichi Ikenaga, and Masaaki Ikehara, “Demosaicing according to edge information based on frequency partition,” Proc. of IEEE DSP/SPE Workshop 2009, Marco Island, FL, Jan. 2009.
  8. Taizo Suzuki and Masaaki Ikehara, “Design of block lifting-based discrete cosine transform type-II and IV,” Proc. of IEEE DSP/SPE Workshop 2009, Marco Island, FL, Jan. 2009.

国内研究会Domestic Conferences

  1. 白井啓一郎, 庄司久人, 池原雅章, “カラー画像平滑化のための色線形性を考慮した異方性拡散,” 第24回信号処理シンポジウム, C8-1, 鹿児島, 2009年11月.
  2. 半田達二郎, 岩村俊輔, 池原雅章, “エネルギー汎関数最小化によるメッシュ・ブロックマッチング複合型動き補償,” 第24回信号処理シンポジウム, C6-10, 鹿児島, 2009年11月.
  3. 岡本健志朗, 京地清介, 池原雅章, “詳細な予測補間を用いた四分木画像分割手法,” 第24回信号処理シンポジウム, C6-3, 鹿児島, 2009年11月.
  4. 三柴数, 池原雅章, “エッジ方向の滑らかさ指標を用いた画像拡大,” PCSJ/IMPS 2009, I-5-21, 修善寺, 2009年10月.
  5. 京地清介, 青山純也, 池原雅章, “二次元リフティングウェーブレット変換を用いた方向適応型画像符号化,” PCSJ/IMPS 2009, P-5-14, 修善寺, 2009年10月.
  6. 鈴木大三, 池原雅章, “サイド情報ブロックを用いた整数離散コサイン変換,” PCSJ/IMPS 2009, P-3-14, 修善寺, 2009年10月.
  7. 脇出大輔, 京地清介, 田中雄一, 池原雅章, “Dual-Tree複素ウェーブレットを用いた方向適応型リフティングウェーブレット変換の高速化,” 信号処理研究会, pp. 73-78, 釧路, 2009年7月.
  8. 早野秀昭, 鈴木大三, 池原雅章, “ブロック並列システムを用いたM分割整数離散コサイン変換タイプII,” 信号処理研究会, pp. 67-71, 釧路, 2009年7月.
  9. 高木大輔, 宇戸寿幸, 池原雅章, 大上健二, “コサイン変調フィルタバンクに基づく画像符号化,” 信号処理研究会, pp. 61-66, 釧路, 2009年7月.
  10. 阿部夕莉香, 三柴数, 池原雅章, “エッジ情報を用いた補間による超解像処理,” 信号処理研究会, pp. 185-189, 長良川, 2009年3月.
  11. 村上正典, 三柴数, 白井啓一郎, 池原雅章, “複数の一次元エッジから推定されるPSFを用いた手ぶれ除去,” 信号処理研究会, pp. 177-182, 長良川, 2009年3月.

2008

学術論文誌Journal Papers

  1. 岩村俊輔, 田中雄一, 池原雅章, “M分割双直交フィルタバンクのブロックリフティング分解,” 信学論(A), vol. J91-A, no. 12, pp. 1181-1189, 2008.
  2. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “A lattice structure of biorthogonal linear-phase filter banks with higher order feasible building blocks,” IEEE Trans. Circuits Syst. I: Regular Papers, vol. 55, no. 8, pp. 2322-2331, 2008.
  3. 京地清介, 田中雄一, 池原雅章, “二分割複素係数擬直交フィルタバンク,” 信学論(A), vol. J91-A, no. 4, pp. 458-467, 2008.
  4. Shin-ichiro Takahashi, Ishtiaq Rasool Khan, Masahiro Okuda, and Masaaki Ikehara, “3D avatar modeling and transmission using cylinder mapping,” WSEAS Trans. Elec., vol. 5, no. 3, pp. 57-64, Mar. 2008.
  5. 田中雄一, 池原雅章, “構造的にレギュラリティ条件を満たした一次線形位相フィルタバンクの設計と画像符号化への応用,” 信学論(A), vol. J91-A, no. 2, pp. 192-201, 2008.

国際会議International Conferences

  1. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “A new combination of 1D and 2D filter banks for effective multiresolution image representation,” Proc. of IEEE ICIP 2008, San Diego, CA, Oct. 2008.
  2. Shizuka Higaki, Seisuke Kyochi, Yuichi Tanaka, and Masaaki Ikehara, “A novel design of critically sampled contourlet transform and its application to image coding,” Proc. of IEEE ICIP 2008, San Diego, CA, Oct. 2008.
  3. Seisuke Kyochi and Masaaki Ikehara, “Novel characteristics of even-stacked cosine-modulated filter banks: non-redundant directional transform and shift-invariance,” Proc. of EURASIP EUSIPCO 2008, Lausanne, Switzerland, Aug. 2008.
  4. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “Oversampled linear-phase perfect reconstruction filter banks with higher-order feasible building blocks: structure and parameterization,” Proc. of IEEE ISCAS 2008, Seattle, WA, May 2008.

国内研究会Domestic Conferences

  1. 三柴数, 白井啓一郎, 池原雅章, “細線化を用いた3Dモデルの四角形リメッシュ,” 第23回信号処理シンポジウム, P-5, 金沢, 2008年11月.
  2. 鈴木大三, 池原雅章, “任意の分割数Mを持つ離散コサイン変換タイプII及びIVのブロックリフティング分解,” 第23回信号処理シンポジウム, B3-4, 金沢, 2008年11月.
  3. 岩村俊輔, 田中雄一, 池原雅章, “ロスレス/ロッシー画像符号化のためのM分割双直交フィルタバンクのブロックリフティング分解,” 信号処理研究会, pp. 85-88, 札幌, 2008年6月.
  4. 京地清介, 池原雅章, “線形位相コサイン変調フィルタバンクの新しい性質 ~ 双対木ウェーブレット変換,多方向選択性,シフト不変性 ~,” 信号処理研究会, pp. 79-84, 札幌, 2008年6月.
  5. 清水喬文, 京地清介, 池原雅章, “最小二乗法に基づくDual-Treeウェーブレット変換の設計法,” 信号処理研究会, pp. 113-117, 山口, 2008年3月.
  6. 池永健一, 岩村俊輔, 池原雅章, “帯域分割に基づく画像の方向成分を考慮したデモザイキング,” 信号処理研究会, pp. 107-112, 山口, 2008年3月.

2007

学術論文誌Journal Papers

  1. Takayuki Nagai, Masaaki Ikehara, and Akira Kurematsu, “HMM-based surface reconstruction from single images,” Systems and Computers in Japan, vol. 38, no. 11, pp. 80-89, 2007.
  2. 白井啓一郎, 伊藤尚徳, 池原雅章, 奥田正浩, “3Dモデル形状とテクスチャ品質保持のためのメッシュパラメータ化,” 信学論(A), vol. J90-A, no. 9, pp. 705-714, 2007.
  3. Shunsuke Iwamura, Taizo Suzuki, Yuichi Tanaka, and Masaaki Ikehara, “Design of M-channel perfect reconstruction filter banks with IIR-FIR hybrid building blocks,” IEICE Trans. Fundamentals, vol. E90-A, no. 8, pp. 1636-1643, 2007.
  4. Toshiyuki Uto, Tomohiro Oka, and Masaaki Ikehara, “M-channel nonlinear phase filter banks in image compression: structure, design, and signal extension,” IEEE Trans. Signal Process., vol. 55, no. 4, pp. 1339-1351, 2007.

国際会議International Conferences

  1. Junya Aoyama, Yuichi Tanaka, and Masaaki Ikehara, “A non-expansive convolution in image coding with smooth extension matrices for NLPPUFBs,” SISB 2007, Bangkok, Thailand, Nov. 2007.
  2. Taichi Yoshida, Yuichi Tanaka, and Masaaki Ikehara, “A generalized lapped transform with unequal length filters based on first-order linear-phase filter banks,” Proc. of IEEE ACSSC 2007, Pacific Grove, CA, Nov. 2007.
  3. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “Unequal length first-order linear-phase filter banks for efficient image coding,” Proc. of IEEE ICIP 2007, San Antonio, TX, Sep. 2007.
  4. Shunsuke Iwamura, Yuichi Tanaka, and Masaaki Ikehara, “An efficient lifting structure of biorthogonal filter banks for lossless image coding,” Proc. of IEEE ICIP 2007, San Antonio, TX, Sep. 2007.
  5. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “A lattice structure of biorthogonal linear-phase filter banks with higher-order feasible building blocks,” Proc. of EURASIP EUSIPCO 2007, Poznan, Poland, Sep. 2007.
  6. Yuichi Tanaka, Masaaki Ikehara, and Truong Q. Nguyen, “A simplified lattice structure of first-order linear-phase filter banks,” Proc. of EURASIP EUSIPCO 2007, Poznan, Poland, Sep. 2007.
  7. Seisuke Kyochi, Yuichi Tanaka, and Masaaki Ikehara, “A novel image coding scheme by using two-channel complex-valued filter banks,” Proc. of EURASIP EUSIPCO 2007, Poznan, Poland, Sep. 2007.
  8. Shin-ichiro Takahashi, Masaaki Ikehara, Isthiaq Rasool Khan, and Masahiro Okuda, “Real time 3D avatar transmission using cylinder mapping,” Proc. of IEEE ICASSP 2007, Honolulu, HI, Apr. 2007.

国内研究会Domestic Conferences

  1. 田中雄一, 池原雅章, Truong Q. Nguyen, “高次数が可能なビルディングブロックを用いた双直交線形位相フィルタバンクのラティス構造,” 信号処理研究会, pp. 73-78, 北海道, 2007年6月.
  2. 石神靖弘, 池原雅章, “リフティングを用いた曲線上のウエーブレット変換による画像符号化,” 信号処理研究会, pp. 11-14, 鳥取, 2007年3月.

2006

学術論文誌Journal Papers

  1. 鈴木大三, 田中雄一, 池原雅章, “リフティング構造に基づくパラユニタリフィルタバンクの設計とロッシー及びロスレス画像符号化への応用,” 信学論(A), vol. J89-A, no. 11, pp. 950-959, 2006.
  2. 白井啓一郎, 奥田正浩, 池原雅章, “3Dモデルの高速な円筒ジオメトリ画像化法,” 信学論(A), vol. J89-A, no. 7, pp. 629-638, 2006.
  3. Keiichiro Shirai, Kyoko Nagatomo, Masahiro Okuda, Masaaki Ikehara, and Shin-ichi Takahashi, “Cylindrical approximation of 3D meshes and its application to similarity detection,” Journal of Signal Processing, vol.10, no.5, pp.363-370, 2006.
  4. Masahiro Okuda, Masaaki Ikehara, and Shin-ichi Takahashi, “Design of equiripple minimum phase FIR filters with ripple ratio control,” IEICE Trans. Fundamentals, vol. E89-A, no. 3, pp. 751-756, 2006.

国際会議International Conferences

  1. Rintaro Sukegawa, Shinya Uchida, Takayuki Nagai, and Masaaki Ikehara, “Blind source separation using correlation at neighboring frequencies,” Proc. of IEEE ISPACS 2006, Tottori, Japan, Dec. 2006.
  2. Kiyohiro Uemura and Masaaki Ikehara, “Quadtree-structured motion estimation based on phase correlation,” Proc. of IEEE ISPACS 2006, Tottori, Japan, Dec. 2006.
  3. Hisato Shoji, Keiichiro Shirai, and Masaaki Ikehara, “Shape from focus using color segmentation and bilateral filter,” Proc. of IEEE DSP/SPE Workshop 2006, Grand Teton National Park, WY, Sep. 2006.
  4. Takashi Kudo, Keiichiro Shirai, and Masaaki Ikehara, “Hierarchical stereo matching via color segmentation,” Proc. of IEEE DSP/SPE Workshop 2006, Grand Teton National Park, WY, Sep. 2006.
  5. Keiichiro Shirai, Takanori Ito, Masaaki Ikehara, and Masahiro Okuda, “Area-distribution uniformizing parameterization for preserving features of 3D meshes,” Proc. of IEEE DSP/SPE Workshop 2006, Grand Teton National Park, WY, Sep. 2006.
  6. Shunsuke Iwamura, Taizo Suzuki, Yuichi Tanaka, and Masaaki Ikehara, “Design of M-channel perfect reconstruction filterbanks with IIR-FIR hybrid building blocks,” Proc. of EURASIP EUSIPCO 2006, Florence, Italy, Sep. 2006.
  7. Taizo Suzuki, Yuichi Tanaka, and Masaaki Ikehara, “Lifting-based paraunitary filterbanks for lossy/lossless image coding,” Proc. of EURASIP EUSIPCO 2006, Florence, Italy, Sep. 2006.
  8. Seisuke Kyochi, Yuichi Tanaka, and Masaaki Ikehara, “Theory and design of two-channel complex linear-phase pseudo-orthogonal filterbanks,” Proc. of IEEE ICASSP 2006, Toulouse, France, May. 2006.

国内研究会Domestic Conferences

  1. 白井啓一郎, 伊藤尚徳, 池原雅章, 奥田正浩, “3Dモデル形状復元のための頂点周辺密度均一化によるパラメータ化,” 信号処理研究会, pp. 53-58, 福岡, 2006年12月.
  2. 岩村俊輔, 田中雄一, 池原雅章, “LDU分解を用いた構造的にレギュラリティを課した双直交フィルタバンク,” 第21回信号処理シンポジウム, D4-2, 京都, 2006年11月.
  3. 檜垣静香, 岩村俊輔, 田中雄一, 池原雅章, “任意のマクミラン次数を持つパラユニタリフィルタバンク,” 第21回信号処理シンポジウム, D4-1, 京都, 2006年11月.

2005

学術論文誌Journal Papers

  1. 白井啓一郎, 野村和史, 池原雅章, “ウェーブレット変換による合焦画像の作成,” 信学論(A), vol. J88-A, no. 10, pp. 1154-1162, 2005.
  2. 田中雄一, 越智章裕, 池原雅章, “冗長性を削減した不等長線形位相フィルタバンクの設計,” 信学論(A), vol. J88-A, no. 9, pp. 1035-1044, 2005.
  3. Masahiro Okuda, Masahiro Yoshida, Kageyuki Kiyose, Masaaki Ikehara, and Shin-ichi Takahashi, “Complex approximation of FIR digital filters by updating desired responses,” IEEE Trans. Signal Process., vol.53, no. 8, pp.2948-2953, 2005.
  4. 田中雄一, 越智章裕, 池原雅章, “非線形位相パラユニタリフィルタバンクのための非拡張畳込みと画像符号化への応用,” 信学論(A), vol. J88-A, no.7, pp. 814-821, 2005
  5. 越智章裕, 池原雅章, “制約の少ない一般化線形位相完全再構成不等長フィルタバンクの設計,” 信学論(A), vol. J88-A, no. 6, pp.704-713, 2005.
  6. 小栗知義, 池原雅章, トロングエン, “位相相関動き補償を用いた動画像三次元符号化法,” 信学論(A), vol. J88-A, no. 4, pp.528-534, 2005.

国際会議International Conferences

  1. Keiichiro Shirai and Masaaki Ikehara, “All-in-focus photo image creation by wavelet transform,” Proc. of IEEE ACSSC 2005, Pacific Grove, CA, Oct. 2005.
  2. Yuichi Tanaka, Akihiro Ochi, and Masaaki Ikehara, “A non-expansive convolution for nonlinear-phase paraunitary filter banks and its application to image coding,” Proc. of IEEE ACSSC 2005, Pacific Grove, CA, Oct. 2005.
  3. Yuichi Tanaka, Akihiro Ochi, and Masaaki Ikehara, “Design of unequal-length linear-phase filter banks without redundancy,” Proc. of EURASIP EUSIPCO 2005, Antalya, Turkey, Sep. 2005.
  4. Masaaki Ikehara and Yuhiro Kobayashi, “A novel lattice structure of M-channel paraunitary filter banks,” Proc. of IEEE ISCAS 2005, Kobe, Japan, May 2005.
  5. Akihiro Ochi and Masaaki Ikehara, “Design of generalized linear-phase paraunitary filter banks with zeros at mirror frequencies,” Proc. of IEEE ICASSP 2005, Philadelphia, PA, Mar. 2005.

国内研究会Domestic Conferences

  1. 伊藤尚徳, 白井啓一郎, 池原雅章, “テクスチャを考慮した三次元モデルのパラメータ化,” 信号処理研究会, pp. 45-50, 愛媛, 2005年7月.
  2. 宇戸寿幸, 奥田正浩, 池原雅章, 高橋進一, 大上健二, “多重解像度解析を用いた距離画像の高速な位置合わせ,” 信号処理研究会, pp. 33-38, 愛媛, 2005年7月.
  3. 内田伸哉, 菅野真音, 長井隆行, 池原雅章, “混合行列推定によるブラインド音源分離,” 信号処理研究会, pp. 19-24, 愛媛, 2005年7月.
  4. 田中雄一, 池原雅章, “ペアワイズ鏡像周波数特性を持つ冗長形線形位相フィルタバンクの設計,” 信号処理研究会, pp. 1-6, 愛媛, 2005年7月.

2004

学術論文誌Journal Papers

  1. Masahiro Okuda, Masahiro Yoshida, Masaaki Ikehara, and Shin-ichi Takahashi, “Simultaneous approximation for magnitude and phase responses of FIR digital filters,” IEICE Trans. Fundamentals, vol. E87-A, no. 11, pp. 2957-2963, 2004.
  2. 赤澤穣, 池原雅章, “FIRディジタルフィルタの振幅・群遅延同時近似,” 信学論(A), vol. J87-A, no. 11, pp. 1395-1402, 2004.
  3. Tatsuya Matsunaga, Masahiro Yoshida, and Masaaki Ikehara, “Design of IIR digital filters in the complex domain by transforming the desired response,” IEEE Trans. Signal Process., vol. 52, no. 7, pp. 1975-1982, July 2004.
  4. Atsuhiko Saito, Toshichika Urushibara, and Masaaki Ikehara, “Design of generalized filter banks with unequal-length and its application of image coding,” IEICE Trans. Fundamentals, vol. E87-A, no. 7, pp. 1756-1764, 2004.
  5. 宇戸寿幸, 萩原隆, 池原雅章, “帯域内相関に基づく符号化を考慮した不等長フィルタバンクの設計,” 信学論(A)レター, vol. J87-A, no. 7, pp. 1082-1085, 2004.
  6. Masahiro Okuda, Ishtiaq Rasool Khan, Masaaki Ikehara, and Shin-ichi Takahashi, “Quasi-equiripple approximation of minimum phase FIR filters by updating desired response,” IEE Vision, Image and Signal Process., vol. 151, no. 3, pp. 164-169, June 2004.
  7. 岡知博, 宇戸寿幸, 池原雅章, “M分割直交フィルタバンクを用いた画像符号化―レギュラリティを考慮した設計と信号拡張―,” 信学論(A), vol. J87-A, no. 5, pp. 597-605, 2004.
  8. 小林悠浩, 池原雅章, “Mチャネルパラユニタリフィルタバンクの新しいラティス構造,” 信学論(A), vol. J87-A, no. 4, pp. 492-499, Apr. 2004.
  9. 越智章裕, 小林悠浩, 池原雅章, “ミラー周波数にゼロ点をもつ一般化線形位相パラユニタリフィルタバンクの設計,” 信学論(A), vol. J87-A, no. 4, pp. 483-491, 2004.
  10. Yukitoshi Sanada, and Masaaki Ikehara, “Decorrelating compensation scheme for coefficient errors of a filter bank parallel A/D converter,” IEEE Trans. Wireless Commun., vol. 3, no. 2, pp. 341-347, Mar. 2004.

国際会議International Conferences

  1. Toshiyuki Uto, Masahiro Okuda, Masaaki Ikehara, and Shin-ichi Takahashi, “Range image registration using multiresolution decomposition,” MMSP 2004, Siena, Itary, Sep.-Oct. 2004.
  2. Minoru Akazawa, and Masaaki Ikehara, “Simultaneous approximation of magnitude and group delay in FIR digital filters,” Proc. of EURASIP EUSIPCO 2004, Vienna, Austria, Sep. 2004.
  3. Takaharu Ishige, Toshihito Shirai, Masayoshi Sakai, and Masaaki Ikehara, “A proposal about wireless position measurement using singular point detection,” Proc. of IEEE MWSCAS 2004, Hiroshima, Japan, July 2004.
  4. Toshiyuki Uto, and Masaaki Ikehara, “Smooth extension for nonexpansive wavelet decomposition of finite length signals,” Proc. of IEEE MWSCAS 2004, Hiroshima, Japan, July 2004.
  5. Tatsuya Matsunaga, and Masaaki Ikehara, “Group delay approximation of allpass digital filters by transforming the desired response,” Proc. of IEEE MWSCAS 2004, Hiroshima, Japan, July 2004.
  6. Masahiro Okuda, Kyoko Nagatomo, Masaaki Ikehara, and Shin-ichi Takahashi, “Similarity detection of 3D meshes using 2D hierarchical regular grids,” Proc. of IEEE ICME 2004, Taipei, Taiwan, June 2004.
  7. Keiichiro Shirai, Masaaki Ikehara, and Masahiro Okuda, “Fast regular mesh approximation of 3D models by cylindrical mapping,” Proc. of IEEE ISCIT 2004, Bangkok, Thailand, Mar. 2004.
  8. Taito Osabe, Keiichiro Shirai, Toshiyuki Uto, Masahiro Okuda, and Masaaki Ikehara, “A study on joint progressive coding of range data and texture images,” Proc. of IEEE ISCIT 2004, Bangkok, Thailand, Mar. 2004.

国内研究会Domestic Conferences

  1. 山野辺俊一, 白井啓一郎, 奥田正浩, 池原雅章, “複数の距離画像からの正則三次元モデルの再構築,” 第19回信号処理シンポジウム, 大泉高原, D5-4, 2004年11月.
  2. 長井隆行, 成瀬忠, 池原雅章, Truong Q. Nguyen, “3次元形状復元のための知識と複数画像情報の確率的統合,” 第19回信号処理シンポジウム, 大泉高原, D5-3, 2004年11月.
  3. 鈴木大三, 田中雄一, 池原雅章, “リフティング因数分解を用いたM分割パラユニタリフィルタバンクの設計,” 第19回信号処理シンポジウム, C5-5, 大泉高原, 2004年11月.
  4. 三柴数, 白井啓一郎, 池原雅章, “パノラマ全集画像のウェーブレット変換を用いた効率的な圧縮符号化,” 第19回信号処理シンポジウム, C4-5, 大泉高原, 2004年11月.
  5. 山本周史, 宇戸寿幸, 池原雅章, “ビットプレーン間相関を利用したEmbedded画像符号化,” 第19回信号処理シンポジウム, C4-4, 大泉高原, 2004年11月.
  6. 田中雄一, 越智章裕, 池原雅章, “非線形位相パラユニタリフィルタバンクのための非拡張畳み込みと画像符号化への応用,” 第19回信号処理シンポジウム, C1-4, 大泉高原, 2004年11月.

2003

学術論文誌Journal Papers

  1. Kohji Inagaki, Masahiro Okuda, Masaaki Ikehara, and Shin-ichi Takahashi, “Measuring errors on 3D meshes using pixel based search,” IEICE Trans. Inf. & Syst., vol. E86-D, no.9, pp. 1903-1908, 2003.
  2. 長井隆行, 池原雅章, 榑松明, “HMMを用いた単一画像からの物体形状復元,” 信学論(D), vol. J86-D2, no. 9, pp. 1286-1296, 2003
  3. Masahiro Okuda, Kyoko Nagatomo, Masaaki Ikehara, and Shin-ichi Takahashi, “Compression of 3D models by remesh on texture images,” IEICE Trans. Inf. & Syst., vol. E86-D, no. 6, pp. 1110-1115, 2003.
  4. 小林悠浩, 川田昌宏, 池原雅章, “一般化線形位相パラユニタリ不等分割フィルタバンク,” 信学論(A), vol. J86-A, no. 6, pp. 638-645
  5. 宇戸寿幸, 中原聡, 池原雅章, “直交及び双直交マルチウェーブレットの設計と実現,” 信学論(A), vol. J86-A, no. 4 pp. 402-409
  6. 宇戸寿幸, 井上知哉, 池原雅章, “直交フィルタバンクに対する信号拡張法とその画像符号化への応用,” 信学論(A), vol. J86-A, no. 3, pp. 199-206
  7. 宇戸寿幸, 奥田正浩, 池原雅章, “クワッドツリー分割に基づく画像符号化法を用いたウェーブレットパケット,” 信学論(A), vol. J86-A, no. 2, pp. 111-118

国際会議International Conferences

  1. Toshiyuki Uto, Satoshi Nakahara, and Masaaki Ikehara, “On lattice structure and design of orthogonal and biorthogonal multifilter banks,” Proc. of IEEE ICIP 2003, Barcelona, Spain, Sep., 2003.
  2. Tomohiro Oka, Toshiyuki Uto, and Masaaki Ikehara, “Smooth signal extension for M-channel paraunitary filterbanks and its application to image coding,” Proc. of IEEE ICIP 2003, Barcelona, Spain, Sep., 2003.
  3. Tatsuya Matsunaga, Masahiro Yoshida, and Masaaki Ikehara, “Design of IIR digital filters in the complex domain by transforming the desired response,” Proc. of IEEE ISCAS 2003, Bangkok, Thailand, May 2003.
  4. Tatsuya Matsunaga and Masaaki Ikehara, “Group delay approximation of allpass digital filters by transforming the desired response,” Proc. of IEEE ICASSP 2003, Hong Kong, PRC, Apr. 2003.
  5. Toshiyuki Uto and Masaaki Ikehara, “A smooth extension for the nonexpansive orthogonal wavelet decomposition of finite length signals,” Proc. of IEEE ICASSP 2003, Hong Kong, PRC, Apr. 2003.