# Publications

All papers are available upon request.

Book

Y. Tanaka, Theory and Applications of Graph Signal Processing, Corona Publishing, 2023 (in Japanese). Corona

Book Chapter

Y. Tanaka, "Graph spectral filtering," in Graph Spectral Image Processing, G. Cheung and E. Magli, Ed., ISTE/Wiley, 2021. ITSE

Y. Tanaka and A. Sakiyama, "Oversampled transforms for graph signals," in Vertex-Frequency Analysis of Graph Signals, L. Stanković and E. Sejdić, Ed., Springer, 2019. Springer

Preprints

K. Yanagiya, K. Yamada, Y. Katsuhara, T. Takatani, and Y. Tanaka, "Edge sampling of graphs: Graph signal processing approach with edge smoothness," 2024. Preprint on arXiv

R. Kaneko, H. Higashi, and Y. Tanaka, "Physics-inspired synthesized underwater image dataset," 2024. Preprint on arXiv

S. Nomura, J. Hara, and Y. Tanaka, "Dynamic sensor placement based on graph sampling theory," 2024. Preprint on arXiv

R. Kaneko, Y. Sato, T. Ueda, and Y. Tanaka, "Marine snow removal benchmarking dataset," 2024. Preprint on arXiv Project page

K. Fukumoto, K. Yamada, Y. Tanaka, and H.-T. Wai, "Clustering of time-varying graphs based on temporal label smoothness," 2023. Preprint on arXiv

K. Iwata, K. Yamada, and Y. Tanaka, "Graph blind deconvolution with sparseness constraint," 2020. Preprint on arXiv

K. Yamada, Y. Tanaka, and A. Ortega, "Time-varying graph learning with constraints on graph temporal variation," 2020. Preprint on arXiv

Journal Papers

Y. Yazaki, S. Watanabe, and Y. Tanaka, "Simple yet effective video-based epileptic tonic-clonic seizure detection," APSIPA Transactions on Signal and Information Processing, accepted.

M. S. Yamamoto, K. Sadatnejad, T. Tanaka, M. R. Islam, F. Dehais, Y. Tanaka, and F. Lotte, "Modeling complex EEG data distribution on the Riemannian manifold toward outlier detection and multimodal classification," IEEE Transactions on Biomedical Engineering, vol. 71, no. 2, pp. 377-387, 2024. IEEE Xplore

J. Hara, Y. Tanaka, and Y. C. Eldar, "Graph signal sampling under stochastic priors," IEEE Transactions on Signal Processing, vol. 71, pp. 1421-1434, 2023. Open Access at IEEE Xplore (Preprint on arXiv)

J. Hara and Y. Tanaka, "Multi-channel sampling on graphs and its relationship to graph filter banks," IEEE Open Journal of Signal Processing, vol. 4, pp. 148-156, 2023. Open Access at IEEE Xplore (Preprint on arXiv)

T. Suzuki, S. Kyochi, and Y. Tanaka, "Regularity-constrained fast sine transforms," IEEE Signal Processing Letters, vol. 29, pp. 1744-1748, 2022. IEEE Xplore Preprint on arXiv

M. Nagahama, K. Yamada, Y. Tanaka, S. H. Chan, and Y. C. Eldar, "Graph signal restoration using nested deep algorithm unrolling," IEEE Trans. on Signal Processing, vol. 70, pp. 3296-3311, 2022. Open Access at IEEE Xplore (Preprint on arXiv) Project page (codes available)

S. Kyochi, T. Suzuki, and Y. Tanaka, "Directional analytic discrete cosine frames," IEEE Access, vol. 10, pp. 20964-20977, 2022. Preprint on arXiv

Y. Li and Y. Tanaka, "Structure-aware multi-hop graph convolution for graph neural networks," IEEE Access, vol. 10, pp. 16624-16633, 2022. Open Access at IEEE Xplore

K. Yamada and Y. Tanaka, "Temporal multiresolution graph learning," IEEE Access, vol. 9, pp. 143734-143745, 2021. Open Access at IEEE Xplore

M. Nagahara, B. Krishnamachari, M. Ogura, A. Ortega, Y. Tanaka, Y. Ushifusa, and T. Valente, "Control, intervention, and behavioral economics over human social networks against COVID-19," Advanced Robotics, vol. 35, no. 11, pp. 733-739, 2021. Taylor & Francis.

Y. Tanaka, Y. C. Eldar, A. Ortega, and G. Cheung, "Sampling signals on graphs: From theory to applications," IEEE Signal Processing Magazine, vol. 37, no. 6, pp. 14-30, 2020. IEEE Xplore Preprint on arXiv

Y. Tanaka and Y. C. Eldar, "Generalized sampling on graphs with subspace and smoothness priors," IEEE Trans. on Signal Processing, vol. 68, pp. 2272-2286, 2020. Open Access at IEEE Xplore (Preprint on arXiv)

A. Sakiyama, Y. Tanaka, T. Tanaka, and A. Ortega, "Eigendecomposition-free sampling set selection for graph signals," IEEE Trans. on Signal Processing, vol. 67, no. 10, pp. 2679-2692, 2019. MATLAB Code Open Access at IEEE Xplore (Preprint on arXiv): Erratum: The top-right cell in Table V (computational complexity of our method) is O(NP|E|) (pointed out by D. Shuman).

A. Sakiyama, K. Watanabe, and Y. Tanaka, "M-channel critically sampled spectral graph filter banks with symmetric structure," IEEE Signal Processing Letters, vol. 26, no. 5, pp. 665-669, 2019. Preprint on arXiv IEEE Xplore

A. Sakiyama, K. Watanabe, Y. Tanaka, and A. Ortega, "Two-channel critically-sampled graph filter banks with spectral domain sampling," IEEE Trans. on Signal Processing, vol. 67, no. 6, pp. 1447-1460, 2019. MATLAB Code Open Access at IEEE Xplore (Preprint on arXiv)

Y. Tanaka, "Spectral domain sampling of graph signals," IEEE Trans. on Signal Processing, vol. 66, no. 14, pp. 3752-3767, 2018. MATLAB Code Open Access at IEEE Xplore (Preprint on arXiv)

G. Cheung, E. Magli, Y. Tanaka, and M. Ng, "Graph spectral image processing," Proceedings of the IEEE, vol. 106, no. 5, pp. 907-930, 2018 (invited paper). Preprint on arXiv IEEE Xplore

T. Suzuki, S. Kyochi, Y. Tanaka, and M. Ikehara, "Multiplierless lifting-based fast X transforms derived from fast Hartley transform factorization," Multidimensional Systems and Signal Processing, vol. 29, no. 1, pp. 99-118, 2018. Springer

M. Onuki, S. Ono, K. Shirai, and Y. Tanaka, "Fast singular value shrinkage with Chebyshev polynomial approximation based on signal sparsity," IEEE Trans. on Signal Processing, vol. 65, no. 22, pp. 6083-6096, 2017. Open Access at IEEE Xplore

K. Yamamoto, M. Onuki, and Y. Tanaka, "Non-blind deconvolution of point cloud attributes in graph spectral domain," IEICE Trans. on Fundamentals, vol. E100-A, no. 9, pp. 1751-1759, 2017. IEICE

D. B. H. Tay, Y. Tanaka, and A. Sakiyama, "Almost tight spectral graph wavelets with polynomial filters," IEEE Journal of Selected Topics in Signal Processing, vol. 11, no. 6, pp. 812-824, 2017. IEEE Xplore

A. Hamamoto, M. Onuki, and Y. Tanaka, "Higher order feasible building blocks for lattice structure of multidimensional linear phase biorthogonal filter banks," Multidimensional Systems and Signal Processing, vol. 28, no. 2, pp. 637-655, 2017. Springer

D. B. H. Tay, Y. Tanaka, and A. Sakiyama, "Critically sampled graph filter banks with polynomial filters from regular domain filter banks," Signal Processing, vol. 131, pp. 66-72, 2017. Elsevier

H. Higashi, T. Rutkowski, T. Tanaka, and Y. Tanaka, "Multilinear discriminant analysis with subspace constraints for single-trial classification of event-related potentials," IEEE Journal of Selected Topics in Signal Processing, vol. 10, no. 7, pp. 1295-1305, 2016. Open Access at IEEE Xplore

A. Sakiyama, K. Watanabe, and Y. Tanaka, "Spectral graph wavelets and filter banks with low approximation error," IEEE Trans. on Signal and Information Processing over Networks, vol. 2, no. 3, pp. 230-245, 2016. MATLAB Code Open Access at IEEE Xplore

S. Yagyu, A. Sakiyama, and Y. Tanaka, "Deforming pyramid: Multiscale image representation using pixel deformation and filters for non-equispaced signals," IEICE Trans. on Fundamentals, vol. E99-A, no.9, pp. 1646-1654, 2016. IEICE

M. Onuki, S. Ono, M. Yamagishi, and Y. Tanaka, "Graph signal denoising via trilateral filter on graph spectral domain," IEEE Trans. on Signal and Information Processing over Networks, vol. 2, no. 2, pp. 137-148, 2016. Preprint Project page IEEE Xplore

D. B. H. Tay, Y. Tanaka, and A. Sakiyama, "Near orthogonal oversampled graph filter banks," IEEE Signal Processing Letters, vol. 23, no. 2, pp. 277-281, 2016. IEEE Xplore

A. Sakiyama and Y. Tanaka, "Oversampled graph Laplacian matrix for graph filter banks," IEEE Trans. on Signal Processing, vol. 62, no. 24, pp. 6425-6437, 2014. MATLAB Code Open Access at IEEE Xplore

M. Onuki and Y. Tanaka, "Design of optimized prefilters for time-domain lapped transforms with various downsampling factors," IEICE Trans. on Fundamentals, vol. E97-A, no. 9, pp. 1907-1917, 2014.

Y. Tanaka and A. Sakiyama, "M-channel oversampled graph filter banks," IEEE Trans. on Signal Processing, vol. 62, no. 14, pp. 3578-3590, 2014. MATLAB Code Open Access at IEEE Xplore

S. Kyochi and Y. Tanaka, "General factorization of conjugate-symmetric Hadamard transforms," IEEE Trans. on Signal Processing, vol. 62, no. 13, pp. 3379-3392, 2014. Open Access at IEEE Xplore

V. H. Le, K. Shinoda, M. Hasegawa, S. Kato, and Y. Tanaka, "Modified high-order edge-directed interpolation for distributed video coding based on selective data pruning," IIEEJ Transactions on Image Electronics and Visual Computing, vol. 2, no. 1, pp. 26-36, 2014.

Y. Tanaka, T. Yoshida, M. Hasegawa, S. Kato, and M. Ikehara, "Rate-dependent seam carving and its application to content-aware image coding," APSIPA Trans. on Signal and Information Processing, vol. 2, no. e1, 15 pages, 2013. Open Access Paper

Y. Tanaka, M. Hasegawa, and S. Kato, "Flexible combination of time-domain lapped transforms with various downsampling factors," IEICE Trans. on Fundamentals, vol. E95-A, no. 11, pp. 2049-2058, 2012.

Y. Tanaka, M. Hasegawa, S. Kato, M. Ikehara, and T. Q. Nguyen, "Adaptive directional wavelet transform based on directional prefiltering," IEEE Trans. on Image Processing, vol. 19, no. 4, pp. 934-945, 2010 (TELECOM System Technology Award). IEEE Xplore pdf

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Higher-order feasible building blocks for lattice structure of oversampled linear-phase perfect reconstruction filter banks," Signal Processing, vol. 89, no. 9, pp. 1694-1703, 2009. doi:10.1016/j.sigpro.2009.03.005 pdf

S. Kyochi, S. Higaki, Y. Tanaka, and M. Ikehara, "A bottom-up design approach of critically sampled contourlet transform for efficient image representation," IEICE Trans. on Fundamentals, vol. E92-A, no. 3, pp.762-771, 2009.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Multiresolution image representation using combined 2-D and 1-D directional filter banks," IEEE Trans. on Image Processing, vol. 18, no. 2, pp. 269-280, 2009 (ranked # 87 among the top 100 downloaded IEEE Xplore articles in Jan. 2009/ Yasujiro Niwa Outstanding Paper Award). IEEE Xplore pdf

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "A lattice structure of biorthogonal linear-phase filter banks with higher order feasible building blocks," IEEE Trans. on Circuits and Systems I: Regular Papers, vol. 55, no. 8, pp. 2322-2331, 2008. IEEE Xplore pdf

S. Iwamura, T. Suzuki, Y. Tanaka, and M. Ikehara, "Design of M-channel perfect reconstruction filter banks with IIR-FIR hybrid building blocks," IEICE Trans. on Fundamentals, vol. E90-A, no. 8, pp. 1636-1643, 2007.

International Conferences

S. A. Hosseini, T. T. Do, G. Cheung, and Y. Tanaka, "Constructing an interpretable deep denoiser by unrolling graph Laplacian regularizer," ICIP 2024, Abu Dhabi, UAE, Oct. 2024, to be presented.

R. Kaneko, H. Kojima, K. Yanagiya, J. Hara, H. Higashi, and Y. Tanaka, "Multiscale graph construction using non-local cluster features," MLSP 2024, London, UK, Sep. 2024, to be presented.

J. Hara, S. Ono, H. Higashi, and Y. Tanaka, "Sensor placement problem on networks for sensors with multiple specifications," EUSIPCO 2024, Lyon, France, Aug. 2024, to be presented.

H. Kojima, H. Higashi, and Y. Tanaka, "Interpretable graph signal denoising using regularization by denoising," EUSIPCO 2024, Lyon, France, Aug. 2024, to be presented.

A. Tamaru, J. Hara, H. Higashi, Y. Tanaka, and A. Ortega, "Optimizing k in kNN graphs with graph learning perspective," ICASSP 2024, Seoul, Korea, Apr. 2024.

K. Yanagiya, J. Hara, H. Higashi, Y. Tanaka, and A. Ortega, "Lossy compression of adjacency matrices by graph filter banks," ICASSP 2024, Seoul, Korea, Apr. 2024.

R. Kaneko, Y. Sato, T. Ueda, H. Higashi, and Y. Tanaka, "Marine snow removal benchmarking dataset," APSIPA ASC 2023, Taipei, Taiwan, Nov. 2023.

K. Takanami, Y. Bandoh, S. Takamura, and Y. Tanaka, "Multimodal graph signal denoising with simultaneous graph learning using deep algorithm unrolling," ICIP 2023, Kuala Lumpur, Malaysia, Oct. 2023.

H. Kitamura, H. Yasuda, Y. Tanaka, and S. Muramatsu, "Realization of digraph filters via augmented GFT," ICIP 2023, Kuala Lumpur, Malaysia, Oct. 2023.

H. Yokota, J. Hara, Y. Tanaka, and G. Cheung, "Signed graph balancing with graph cut," EUSIPCO 2023, Helsinki, Finland, Sep. 2023.

H. Kojima, H. Noguchi, K. Yamada, and Y. Tanaka, "Restoration of time-varying graph signals using deep algorithm unrolling," ICASSP 2023, Rhodes Island, Greece, Jun. 2023.

K. Yanagiya, K. Yamada, Y. Katsuhara, T. Takatani, and Y. Tanaka, "Edge sampling of graphs based on edge smoothness," ICASSP 2022, Singapore, May 2022.

M. Nagahama and Y. Tanaka, "Multimodal graph signal denoising via twofold graph smoothness regularization with deep algorithm unrolling," ICASSP 2022, Singapore, May 2022.

J. Hara and Y. Tanaka, "Sampling set selection for graph signals under arbitrary signal priors," ICASSP 2022, Singapore, May 2022.

K. Yamada and Y. Tanaka, "Graph learning information criterion," ICASSP 2022, Singapore, May 2022.

K. Fukumoto, K. Yamada, and Y. Tanaka, "Node clustering of time-varying graphs based on temporal label smoothness," APSIPA ASC 2021, Tokyo, Japan, Dec. 2021.

Y. Li and Y. Tanaka, "Structural features in feature space for structure-aware graph convolution," ICIP 2021, Virtual Conference, Sep. 2021.

M. Nagahama, K. Yamada, Y. Tanaka, S. H. Chan, and Y. C. Eldar, "Graph signal denoising using nested-structured deep algorithm unrolling," ICASSP 2021, Virtual Conference, Jun. 2021.

J. Hara, K. Yamada, S. Ono, and Y. Tanaka, "Design of graph signal sampling matrices for arbitrary signal subspace," ICASSP 2021, Virtual Conference, Jun. 2021.

K. Yamada and Y. Tanaka, "Learning graphs with multiple temporal resolutions," APSIPA ASC 2020, Virtual Conference, Dec. 2020.

O. Ojo, A. García-Agundez, B. Girault, H. Hernández, E. Cabana, A. García, P. Arabshahi, C. Baquero, P. Casari, E. José Ferreira, D. Frey, C. Georgiou, M. Goessens, A. Ishchenko, I. Sikorsky, E. Jiménez, O. Kebkal, R. Lillo, R. Menezes, N. Nicolaou, A. Ortega, P. Patras, J. C. Roberts, E. Stavrakis, Y. Tanaka, and A. Fernández Anta, "CoronaSurveys: Using surveys with indirect reporting to estimate the incidence and evolution of epidemics," KDD Humanitarian Workshop 2020, Virtual Conference, Aug. 2020.

M. S. Yamamoto, K. Sadatnejad, T. Tanaka, Md. R. Islam, Y. Tanaka, and F. Lotte, "Detecting EEG outliers for BCI on the Riemannian manifold using spectral clustering," EMBC 2020, Virtual Conference, Jul. 2020.

J. Hara, Y. Tanaka, and Y. C. Eldar, "Generalized graph spectral sampling with stochastic priors," ICASSP 2020, Virtual Conference, May 2020.

T. Sakai, T. Shoji, N. Yoshida, K. Fukumori, Y. Tanaka, and T. Tanaka, "ScalpNet: Detection of spatiotemporal abnormal intervals in epileptic EEG using convolutional neural networks," ICASSP 2020, Virtual Conference, May 2020.

T. Ueda, K. Yamada, and Y. Tanaka, "Underwater image synthesis from RGB-D images and its application to deep underwater image restoration," ICIP 2019, Taipei, Taiwan, Sep. 2019. (Best Student Paper Runner-Up: 20 Best Paper/Best Student Paper finalists among 2,067 submissions)

Y. Tanaka and Y. C. Eldar, "Generalized sampling on graphs with a subspace prior," SampTA 2019, Bordeaux, France, Jul. 2019.

K. Yamada, Y. Tanaka, and A. Ortega, "Time-varying graph learning based on sparseness of temporal variation," ICASSP 2019, Brighton, UK, May 2019.

Y. Yazaki, Y. Tanaka, and S. H. Chan, "Interpolation and denoising of graph signals using plug-and-play ADMM," ICASSP 2019, Brighton, UK, May 2019.

M. Onuki and Y. Tanaka, "SVD for very large matrices: An approach with polar decomposition and polynomial approximation," ICDM DSBDA Workshop 2018, Singapore, Nov. 2018.

T. Kanada, M. Onuki, and Y. Tanaka, "Low-rank sparse decomposition of graph adjacency matrices for extracting clean clusters," APSIPA ASC 2018, Honolulu, HI, Nov. 2018.

T. Nishikawa and Y. Tanaka, "Dynamic color lines," ICIP 2018, Athens, Greece, Oct. 2018.

Y. Shimizu, S. Ono, and Y. Tanaka, "Design of sampling matrices in graph frequency domain for graph signal processing," ICIP 2018, Athens, Greece, Oct. 2018.

Y. Yazaki, S. Watanabe, and Y. Tanaka, "Automatic detection of tonic-clonic seizures in epilepsy based on low-complexity video analysis," EMBC 2018, Honolulu, HI, Jul. 2018.

K. Watanabe, A. Sakiyama, Y. Tanaka, and A. Ortega, "Critically-sampled graph filter banks with spectral domain sampling," ICASSP 2018, Calgary, AB, Apr. 2018.

A. Sakiyama and Y. Tanaka, "Graph reduction method using localization operator and its application to pyramid transform," APSIPA ASC 2017, Kuala Lumpur, Malaysia, Dec. 2017 (Invited paper).

A. Sakiyama, T. Namiki, and Y. Tanaka, "Design of polynomial approximated filters for signals on directed graphs," GlobalSIP 2017, Montreal, Canada, Nov. 2017.

T. Nishikawa and Y. Tanaka, "Colors in multimodal data: Dominant line extraction inspired by computer vision techniques," IGARSS 2017, Fort Worth, TX, Jul. 2017.

T. Ichita, S. Kyochi, T. Suzuki, and Y. Tanaka, "Directional discrete cosine transforms arising from discrete cosine and sine transforms for directional block-wise image representation," ICASSP 2017, New Orleans, LA, Mar. 2017.

M. Onuki, Y. Tanaka, and M. Okuda, "Improved eigenvalue shrinkage using weighted Chebyshev polynomial approximation," ICASSP 2017, New Orleans, LA, Mar. 2017.

A. Sakiyama, Y. Tanaka, T. Tanaka, and A. Ortega, "Accelerated sensor position selection using graph localization operator," ICASSP 2017, New Orleans, LA, Mar. 2017.

Y. Tanaka and A. Sakiyama, "A 'polyphase' structure of two-channel spectral graph wavelets and filter banks," ICASSP 2017, New Orleans, LA, Mar. 2017.

H. Higashi, T. Rutkowski, T. Tanaka, and Y. Tanaka, "Smoothing of xDAWN spatial filters for robust extraction of event-related potentials," APSIPA ASC 2016, Jeju, Korea, Dec. 2016.

Y. Tanaka, S. Yagyu, A. Sakiyama, and M. Onuki, "Mesh-based image retargeting with spectral graph filtering," APSIPA ASC 2016, Jeju, Korea, Dec. 2016.

A. Sakiyama and Y. Tanaka, "Construction of undersampled graph filter banks via row subset selection," GlobalSIP 2016, Washington, D.C., Dec. 2016.

M. Onuki and Y. Tanaka, "L1-regularized optimization of undersampled prefilters for image coding," PCS 2016, Nuremberg, Germany, Dec. 2016.

S. Yagyu, A. Sakiyama, and Y. Tanaka, "Pyramidal image representation with deformation: Reformulation of domain transform and filter designs," ICIP 2016, Phoenix, AZ, Sep. 2016.

K. Yamamoto, M. Onuki, and Y. Tanaka, "Deblurring of point cloud attributes in graph spectral domain," ICIP 2016, Phoenix, AZ, Sep. 2016.

T. Tanaka, T. Uehara, and Y. Tanaka, "Dimensionality reduction of sample covariance matrices by graph Fourier transform for motor imagery brain-machine interface," SSP 2016, Palma de Mallorca, Spain, Jun. 2016.

M. Onuki, S. Ono, K. Shirai, and Y. Tanaka, "Image colorization based on ADMM with fast singular value thresholding by Chebyshev polynomial approximation," ICASSP 2016, Shanghai, China, Mar. 2016.

A. Sakiyama, Y. Tanaka, T. Tanaka, and A. Ortega, "Efficient sensor position selection using graph signal sampling theory," ICASSP 2016, Shanghai, China, Mar. 2016.

H. Higashi, T. Rutkowski, T. Tanaka, and Y. Tanaka, "Subspace-constrained multilinear discriminant analysis for ERP-based brain computer interface classification," APSIPA ASC 2015, Hong Kong, Dec. 2015 (Invited Paper, Best Paper Award).

K. Suwabe, M. Onuki, Y. Iizuka and Y. Tanaka, "Globalized BM3D using fast eigenvalue filtering," GlobalSIP 2015, Orlando, FL, Dec. 2015.

S. Yagyu, A. Sakiyama and Y. Tanaka, "Edge preserving multiscale image decomposition with customized domain transform filters," GlobalSIP 2015, Orlando, FL, Dec. 2015.

R. Morita, K. Shirai, and Y. Tanaka, "Performance analysis of retargeting pyramid and its applications," ICIP 2015, Québec City, Canada, Sep. 2015.

M. Onuki, S. Ono, K. Shirai, and Y. Tanaka, "Non-local/local filters using fast eigenvalue filtering for image denoising," ICIP 2015, Québec City, Canada, Sep. 2015.

A. Sakiyama and Y. Tanaka, "Oversampled bipartite graphs with controlled redundancy," EUSIPCO 2015, Nice, France, Sep. 2015 (Invited Paper).

A. Sakiyama and Y. Tanaka, "Critically sampled graph wavelets converted from linear-phase biorthogonal wavelets," ICASSP 2015, Brisbane, Australia, Apr. 2015.

M. Onuki and Y. Tanaka, "Tone-mapping using graph spectral-domain filters," 2015 Joint Conference of IWAIT and IFMIA, Tainan, Taiwan, Jan. 2015 (Invited Talk).

H. Higashi, T. Tanaka, and Y. Tanaka, "Smoothing of spatial filter by graph Fourier transform for EEG signals," APSIPA ASC 2014, Siem Reap, Cambodia, Dec. 2014 (Invited Paper, Best Paper Award).

E. Hosogai and Y. Tanaka, "Iterative edge-directed image upscaling with high directionality," APSIPA ASC 2014, Siem Reap, Cambodia, Dec. 2014.

A. Hamamoto, M. Onuki, and Y. Tanaka, "Multidimensional linear-phase perfect reconstruction filter banks with higher order feasible building blocks," ICIP 2014, Paris, France, Oct. 2014.

Y. Iizuka and Y. Tanaka, "Depth map denoising using collaborative graph wavelet shrinkage on connected image patches," ICIP 2014, Paris, France, Oct. 2014.

M. Onuki and Y. Tanaka, "Trilateral filter on graph spectral domain," ICIP 2014, Paris, France, Oct. 2014.

A. Sakiyama and Y. Tanaka, "Edge-aware image graph expansion methods for oversampled graph Laplacian matrix," ICIP 2014, Paris, France, Oct. 2014.

A. Sakiyama and Y. Tanaka, "Oversampled graph Laplacian matrix for graph signals," EUSIPCO 2014, Lisbon, Portugal, Sep. 2014.

Y. Tanaka and A. Sakiyama, "M-channel oversampled perfect reconstruction filter banks for graph signals," ICASSP 2014, Florence, Italy, May 2014. pdf

R. Morita, K. Shirai, and Y. Tanaka, "Retargeting pyramid using direct decimation," ICASSP 2014, Florence, Italy, May 2014. pdf

S. Kyochi, T. Suzuki, and Y. Tanaka, "A two-dimensional non-separable implementation of dyadic-valued cosine-sine modulated filter banks for low computational complexity," APSIPA Annual Summit and Conference 2013, Kaohsiung, Taiwan, Oct. 2013 (Invited Paper).

K. Yamato, M. Hasegawa, K. Shinoda, S. Kato, and Y. Tanaka, "Image restoration using similar region search and digital watermark," APSIPA Annual Summit and Conference 2013, Kaohsiung, Taiwan, Oct. 2013 (Invited Paper).

M. Onuki and Y. Tanaka, "Design of optimized prefilters for time-domain lapped transforms with various downsampling factors," ICIP 2013, Melbourne, Australia, Sep. 2013. pdf

H. V. Le, K. Shinoda, M. Hasegawa, S. Kato, and Y. Tanaka, "Selective data pruning based distributed video coding with modified high-order edge-directed interpolation," ICIP 2013, Melbourne, Australia, Sep. 2013. pdf

Y. Tanaka and K. Shirai, "Scalable image representation using improved retargeting pyramid," ICASSP 2013, Vancouver, Canada, May 2013.

Y. Miyashita, M. Hasegawa, S. Kato, and Y. Tanaka, "Improved adaptive color embedding and recovery using DC level shifting," ICASSP 2013, Vancouver, Canada, May 2013.

T. Suzuki, S. Kyochi, Y. Tanaka, M. Ikehara, and H. Aso, "Multiplierless lifting based FFT via fast Hartley transform," ICASSP 2013, Vancouver, Canada, May 2013.

Y. Tanaka and K. Shirai, "Directional image decomposition using retargeting pyramid," APSIPA Annual Summit and Conference 2012, Hollywood, CA, Dec. 2012 (Invited Paper).

S. Kyochi, T. Suzuki, and Y. Tanaka, "A directional and shift-invariant transform based on M-channel rational-valued cosine-sine modulated filter banks," APSIPA Annual Summit and Conference 2012, Hollywood, CA, Dec. 2012.

H. V. Le, T. T. Phan, Y. Tanaka, M. Hasegawa, and S. Kato, "Distributed video coding based on selective data pruning and high-order edge-directed interpolation," IIEEJ Image Electronics and Visual Computing Workshop 2012 (IEVC2012), Kuching, Malaysia, Nov. 2012.

S. Kanahara, M. Hasegawa, S. Kato, and Y. Tanaka, "A fast binary arithmetic coding using probability table of expanded symbols," ISITA 2012, Honolulu, HI, Oct. 2012.

Y. Miyashita, Y. Tanaka, M. Hasegawa, and S. Kato, "Adaptive color-to-gray mapping using directional transform," ICIP 2012, Orlando, FL, Sep. 2012.

K. Yamato, M. Hasegawa, Y. Tanaka, and S. Kato, "Digital image watermarking method using between-class variance," ICIP 2012, Orlando, FL, Sep. 2012.

T. Yoshida, Y. Tanaka, M. Hasegawa, S. Kato, and M. Ikehara, "Wavelet-based content-aware image coding with rate-dependent seam carving," ICIP 2012, Orlando, FL, Sep. 2012.

S. Kyochi and Y. Tanaka, "Multiresolution directional image decomposition based on cosine-sine modulated filterbank," ITC-CSCC 2012, Sapporo, Japan, Jul. 2012 (Invited Paper).

S. Kyochi, Y. Tanaka, and M. Ikehara, "On factorizations of conjugate symmetric Hadamard transform and its relationship with DCT," ICASSP 2012, Kyoto, Japan, Mar. 2012.

T. Suzuki, Y. Tanaka, M. Ikehara, H. Aso, "Multiplierless fast algorithm for DCT via fast Hartley transform," ICASSP 2012, Kyoto, Japan, Mar. 2012.

M. Hoshi, A. Yoshinari, Y. Tanaka, M. Hasegawa, and S. Kato, "Variable block size-based MCFI with fixed block size motion estimation," 45th Annual Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Nov. 2011.

K. Takahashi, M. Hasegawa, Y. Tanaka, and S. Kato, "A structural similarity assessment for generating hybrid images," 45th Annual Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Nov. 2011.

T. T. Phan, Y. Tanaka, M. Hasegawa, and S. Kato, "Mixed-resolution Wyner-Ziv video coding based on selective data pruning," MMSP 2011, Hangzhou, China, Oct. 2011.

Y. Tanaka, M. Hasegawa, and S. Kato, "Generalized selective data pruning for video sequence," ICIP 2011, Brussels, Belgium, Sep. 2011.

T. Miyachi, K. Takahashi, M. Hasegawa, Y. Tanaka, and S. Kato, "A Study on memorability and shoulder-surfing robustness of graphical password using DWT-based image blending," SOUPS 2011, Pittsburgh, PA, Jul. 2011.

M. Hasegawa, D. Someya, Y. Tanaka, and S. Kato, "A study on user authentication based on arm movements using acceleration sensor," SOUPS 2011, Pittsburgh, PA, Jul. 2011.

D. Azuma, Y. Tanaka, M. Hasegawa, and S. Kato, "SSIM based image quality assessment applicable to resized images," ITC-CSCC 2011, Gyeongju, Korea, Jun. 2011.

Y. Tanaka, M. Hasegawa, and S. Kato, "Seam carving with rate-dependent seam path information," ICASSP 2011, Prague, Czech Republic, May 2011.

Y. Tanaka, M. Hasegawa, and S. Kato, "Flexible combination of time-domain lapped transforms with various downsampling factors," APSIPA Annual Summit and Conference 2010, Singapore, Dec. 2010 (Invited Paper).

H. Igarashi, Y. Tanaka, M. Hasegawa, and S. Kato, "VQ based data hiding method for still images by tree-structured links," PCS 2010, Nagoya, Japan, Dec. 2010.

T. Miyachi, K. Takahashi, M. Hasegawa, Y. Tanaka, and S. Kato, "A Study on memorability and shoulder-surfing robustness of graphical password using DWT-based image blending," PCS 2010, Nagoya, Japan, Dec. 2010.

Y. Tanaka, M. Hasegawa, and S. Kato, "Improved image concentration for artifact-free image dilution and its application to image coding," ICIP 2010, Hong Kong, Sept. 2010. (Errata: Instead of D(n)-D(n-1) and R(n-1)-R(n) in the original paper, the equation just below (6) should be D(n)/D(n-1) and R(n-1)/R(n).)

M. Hasegawa, D. Someya, Y. Tanaka, and S. Kato, "A study on user authentication based on arm movements," ITC-CSCC 2010, Pattaya, Thailand, Jul. 2010.

Y. Tanaka, M. Hasegawa, S. Kato, T. Suzuki, and M. Ikehara, "Direction scalability of adaptive directional wavelet transform: An approach using block-lifting based DCT and SPIHT," ISCAS 2010, Paris, France, May 2010 (Invited Paper).

Y. Tanaka, M. Hasegawa, and S. Kato, "Image coding using concentration and dilution based on seam carving with hierarchical search," ICASSP 2010, Dallas, TX, Mar. 2010.

Y. Tanaka, M. Hasegawa, and S. Kato, "Image concentration and dilution for video coding," IIEEJ Image Electronics and Visual Computing Workshop 2010 (IEVC2010), Nice, France, Mar. 2010.

M. Hasegawa, T. Miyachi, Y. Tanaka, and S. Kato, "A graphical password using discrete wavelet transform and its evaluation," IIEEJ Image Electronics and Visual Computing Workshop 2010 (IEVC2010), Nice, France, Mar. 2010.

N. Tanano, Y. Tanaka, M. Hasegawa, and S. Kato, "Depth order estimation from single still image using frequency characteristics of local regions," IIEEJ Image Electronics and Visual Computing Workshop 2010 (IEVC2010), Nice, France, Mar. 2010.

Y. Tanaka, M. Hasegawa, and S. Kato, "Texture image retrieval using adaptive directional wavelet transform," ISPACS 2009, Kanazawa, Japan, Dec. 2009 (Invited Paper).

M. Hasegawa, Y. Tanaka, and S. Kato, "A study on an image synthesis method for graphical passwords," ISPACS 2009, Kanazawa, Japan, Dec. 2009 (Invited Paper).

Y. Tanaka, M. Hasegawa, S. Kato, M. Ikehara, and T. Q. Nguyen, "Adaptive directional wavelet transform using pre-directional filtering," ICIP 2009, Cairo, Egypt, Nov. 2009.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "An adaptive extension of combined 2D and 1D-directional filter banks," ISCAS 2009, Taipei, Taiwan, May 2009.

Y. Tanaka, M. Hasegawa, and S. Kato, "Highpass-filtering based adaptive directional wavelet transform," PCS 2009, Chicago, IL, May 2009.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "A new combination of 1D and 2D filter banks for effective multiresolution image representation," ICIP 2008, San Diego, CA, Oct. 2008.

S. Higaki, S. Kyochi, Y. Tanaka, and M. Ikehara, "A novel design of critically sampled contourlet transform and its application to image coding," ICIP 2008, San Diego, CA, Oct. 2008.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Oversampled linear-phase perfect reconstruction filter banks with higher-order feasible building blocks: structure and parameterization," ISCAS 2008, Seattle, WA, May 2008.

J. Aoyama, Y. Tanaka, and M. Ikehara, "A non-expansive convolution in image coding with smooth extension matrices for NLPPUFBs," 2007 International Workshop on Smart Info-Media Systems in Bangkok, Bangkok, Thailand, Nov. 2007.

T. Yoshida, Y. Tanaka, and M. Ikehara, "A generalized lapped transform with unequal length filters based on first-order linear-phase filter banks," 41st Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Nov. 2007.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "A lattice structure of biorthogonal linear-phase filter banks with higher-order feasible building blocks," EUSIPCO 2007, Poznan, Poland, Sept. 2007.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "A simplified lattice structure of first-order linear-phase filter banks," EUSIPCO 2007, Poznan, Poland, Sept. 2007.

S. Kyochi, Y. Tanaka, and M. Ikehara, "A novel image coding scheme by using two-channel complex-valued filter banks," EUSIPCO 2007, Poznan, Poland, Sept. 2007.

Y. Tanaka, M. Ikehara, and T. Q. Nguyen, "Unequal length first-order linear-phase filter banks for efficient image coding," ICIP 2007, San Antonio, TX, Sept. 2007.

S. Iwamura, Y. Tanaka, and M. Ikehara, "An efficient lifting structure of biorthogonal filter banks for lossless image coding," ICIP 2007, San Antonio, TX, Sept. 2007.

T. Suzuki, Y. Tanaka, and M. Ikehara, "Lifting-based paraunitary filterbanks for lossy/lossless image coding," EUSIPCO 2006, Florence, Italy, Sept. 2006.

S. Iwamura, T. Suzuki, Y. Tanaka, and M. Ikehara, "Design of M-channel perfect reconstruction filterbanks with IIR-FIR hybrid building blocks," EUSIPCO 2006, Florence, Italy, Sept., 2006.

S. Kyochi, Y. Tanaka, and M. Ikehara, "Theory and design of two-channel complex linear-phase pseudo-orthogonal filterbanks," ICASSP 2006, Toulouse, France, May, 2006.

Y. Tanaka, A. Ochi, and M. Ikehara, "A non-expansive convolution for nonlinear-phase paraunitary filter banks and its application to image coding," 39th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Oct., 2005.

Y. Tanaka, A. Ochi, and M. Ikehara, "Design of unequal-length linear-phase filter banks without redundancy," EUSIPCO 2005, Antalya, Turkey, Sept., 2005.

Review Articles

Y. Tanaka, "Graph sampling theory and its applications," Journal of IEICE, vol. 105, no. 1, pp. 9-15, 2022 (Invited Paper, in Japanese). IEICE

Y. Tanaka and M. Nagahara, "Control and signal processing on networks," Journal of The Society of Instrument and Control Engineers, vol. 55, no. 11, pp. 924-929, 2016 (Invited Paper, in Japanese). Open Access at J-STAGE

Y. Tanaka, "Recent advances in signal processing on graphs," IEICE Fundamentals Review, vol. 8, no. 1, pp. 15-29, 2014. (Invited Paper, in Japanese). Open Access at J-STAGE

Patents

Y. Tanaka, Y. Yazaki, and S. Watanabe, Japanese Patent No. 6956962, Oct. 2021 (Application No. 2018-024355, Feb. 2018).

Journal Papers (Japanese)

S. Kanahara, M. Hasegawa, K. Shinoda, S. Kato, and Y. Tanaka, "Study on fast binary arithmetic coding using source expansion," IIEEJ Transactions, vol. 44, no. 3, pp. 464-473, 2015.

K. Yamato, M. Hasegawa, K. Shinoda, S. Kato, and Y. Tanaka, "Image restoration based on embedding of similar region information," IEICE Trans. on Information and Systems, vol. J97-D, no. 4, pp. 857-867, 2014.

K. Yamato, M. Hasegawa, Y. Tanaka, and S. Kato, "Digital image watermarking using between-class variance," IIEEJ Transactions, vol. 41, no. 5, pp.560-567, 2012.

T. Miyachi, Y. Tanaka, M. Hasegawa, and S. Kato, "A study on a graphical password using a feature of human visual system," IEICE Trans. on Information and Systems, vol. J94-D, no.9, pp. 1513-1521, 2011.

M. Hasegawa, Y. Tanaka, S. Kato, "A consideration on calculation of SNR for color image signals," IIEEJ Transactions, vol. 40, no. 3, pp. 475-479, 2011.

S. Iwamura, Y. Tanaka, and M. Ikehara, "Block lifting factorization based biorthogonal filter banks and its application for lossy-to-lossless image coding," IEICE Trans. on Fundamentals, vol. J91-A, no. 12, pp. 1181-1189, 2008.

S. Kyochi, Y. Tanaka, and M. Ikehara, "Two-channel complex-valued pseudo-orthogonal filter banks," IEICE Trans. on Fundamentals, vol. J91-A, no. 4, pp. 458-467, 2008.

Y. Tanaka and M. Ikehara, "First-order linear-phase filter banks with regularity constraints for efficient image coding," IEICE Trans. on Fundamentals, vol. J91-A, no. 2, pp. 192-201, 2008.

T. Suzuki, Y. Tanaka, and M. Ikehara, "Lifting-based paraunitary filterbanks for lossy/lossless image coding," IEICE Trans. on Fundamentals, vol. J89-A, no. 11, pp. 950-959, 2006.

Y. Tanaka, A. Ochi, and M. Ikehara, "Design of unequal-length linear-phase filter banks without redundancy," IEICE Trans. on Fundamentals, vol. J88-A, no.9, pp. 1035-1044, 2005.

Y. Tanaka, A. Ochi, and M. Ikehara, "A non-expansive convolution for nonlinear-phase paraunitary filter banks and its application in image coding," IEICE Trans. on Fundamentals, vol. J88-A, no. 7, pp. 814-821, 2005.