8 citations · 15 across the 8 of their papers we have counts for
8 papers
Overlapped Wavelet Diffusion for Low-Light Image Enhancement
Fen Peng, Taizo Suzuki, Seisuke Kyochi
In this study, we propose an overlapped wavelet diffusion framework for Low-Light Image Enhancement (LLIE), which incorporates two complementary components to achieve blocking arti…
A Design of Denser-Graph-Frequency Graph Fourier Frames for Graph Signal Analysis
Kaito Nitani, Seisuke Kyochi
This paper introduces a design method for densergraph-frequency graph Fourier frames (DGFFs) to enhance graph signal processing and analysis. The graph Fourier transform (GFT) enab…
Sparsity-Enhanced Multilayered Non-Convex Regularization with Epigraphical Relaxation for Debiased Signal Recovery
Akari Katsuma, Seisuke Kyochi, Shunsuke Ono +1
This paper proposes a precise signal recovery method with multilayered non-convex regularization, enhancing sparsity/low-rankness for high-dimensional signals including images and…
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)…
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…
Epigraphical Relaxation for Minimizing Layered Mixed Norms
Seisuke Kyochi, Shunsuke Ono, Ivan Selesnick
This paper proposes an epigraphical relaxation (ERx) technique for non-proximable mixed norm minimization. Mixed norm regularization methods play a central role in signal reconstru…
Sound Event Detection Utilizing Graph Laplacian Regularization with Event Co-occurrence
Keisuke Imoto, Seisuke Kyochi
A limited number of types of sound event occur in an acoustic scene and some sound events tend to co-occur in the scene; for example, the sound events "dishes" and "glass jingling"…
Sound Event Detection Using Graph Laplacian Regularization Based on Event Co-occurrence
Keisuke Imoto, Seisuke Kyochi
The types of sound events that occur in a situation are limited, and some sound events are likely to co-occur; for instance, ``dishes'' and ``glass jingling.'' In this paper, we pr…