Search Results for author: Hiroshi Higashi

Found 5 papers, 1 papers with code

Physics-Inspired Synthesized Underwater Image Dataset

no code implementations5 Apr 2024 Reina Kaneko, Hiroshi Higashi, Yuichi Tanaka

This paper introduces the physics-inspired synthesized underwater image dataset (PHISWID), a dataset tailored for enhancing underwater image processing through physics-inspired image synthesis.

Image Enhancement Image Generation

Lossy Compression of Adjacency Matrices by Graph Filter Banks

no code implementations5 Feb 2024 Kenta Yanagiya, Junya Hara, Hiroshi Higashi, Yuichi Tanaka, Antonio Ortega

In this paper, we propose a lossy compression of weighted adjacency matrices, where the binary adjacency information is encoded losslessly (so the topological information of the graph is preserved) while the edge weights are compressed lossily.

Optimizing $k$ in $k$NN Graphs with Graph Learning Perspective

no code implementations16 Jan 2024 Asuka Tamaru, Junya Hara, Hiroshi Higashi, Yuichi Tanaka, Antonio Ortega

$k$NN is one of the most popular approaches and is widely used in machine learning and signal processing.

Denoising graph construction +1

Dynamic Sensor Placement Based on Graph Sampling Theory

no code implementations8 Nov 2022 Saki Nomura, Junya Hara, Hiroshi Higashi, Yuichi Tanaka

Sensor placement problem aims to select K sensor positions from N candidates where K < N. Most existing methods assume that sensor positions are static, i. e., they do not move, however, many mobile sensors like drones, robots, and vehicles can change their positions over time.

Dictionary Learning Graph Sampling

Marine Snow Removal Benchmarking Dataset

1 code implementation26 Mar 2021 Reina Kaneko, Yuya Sato, Takumi Ueda, Hiroshi Higashi, Yuichi Tanaka

This paper introduces a new benchmarking dataset for marine snow removal of underwater images.

Benchmarking Snow Removal

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