152 citations · 502 across the 13 of their papers we have counts for
14 papers
Multi-channel Sampling on Graphs and Its Relationship to Graph Filter Banks
Junya Hara, Yuichi Tanaka
In this paper, we consider multi-channel sampling (MCS) for graph signals. We generally encounter full-band graph signals beyond the bandlimited one in many applications, such as p…
Regularity-Constrained Fast Sine Transforms
Taizo Suzuki, Seisuke Kyochi, Yuichi Tanaka
This letter proposes a fast implementation of the regularity-constrained discrete sine transform (R-DST). The original DST \textit{leaks} the lowest frequency (DC: direct current)…
Graph Signal Sampling Under Stochastic Priors
Junya Hara, Yuichi Tanaka, Yonina C. Eldar
We propose a generalized sampling framework for stochastic graph signals. Stochastic graph signals are characterized by graph wide sense stationarity (GWSS) which is an extension o…
Directional Analytic Discrete Cosine Frames
Seisuke Kyochi, Taizo Suzuki, Yuichi Tanaka
Block frames called directional analytic discrete cosine frames (DADCFs) are proposed for sparse image representation. In contrast to conventional overlapped frames, the proposed D…
Graph Blind Deconvolution with Sparseness Constraint
Kazuma Iwata, Koki Yamada, Yuichi Tanaka
We propose a blind deconvolution method for signals on graphs, with the exact sparseness constraint for the original signal. Graph blind deconvolution is an algorithm for estimatin…
Sampling Signals on Graphs: From Theory to Applications
Yuichi Tanaka, Yonina C. Eldar, Antonio Ortega +1
The study of sampling signals on graphs, with the goal of building an analog of sampling for standard signals in the time and spatial domains, has attracted considerable attention…