Activities

その他の業績は Researchmap を参照して下さい．

2025

査読付

Variable Dose-Constraints Method Based on Multiplicative Dynamical Systems for High-Precision Intensity-Modulated Radiation Therapy Planning

Omar M. Abou Al-Ola, Takeshi Kojima, Ryosei Nakada, Norihisa Obata, Kohei Hayashi, and Tetsuya Yoshinaga

MathematicsDOI

2024

査読付

Variable Dose-Constraints Method for Enhancing Intensity-Modulated Radiation Therapy Treatment Planning

Norihisa Obata, Omar M. Abou Al-Ola, Ryosei Nakada, Takeshi Kojima, and Tetsuya Yoshinaga

MathematicsDOI

査読付筆頭著者

Optimizing Parameters for Enhanced Iterative Image Reconstruction Using Extended Power Divergence

Takeshi Kojima, Yusaku Yamaguchi, Omar M. Abou Al-Ola, and Tetsuya Yoshinaga

AlgorithmsDOI

査読付責任著者

Iterative Tomographic Image Reconstruction Algorithm Based on Extended Power Divergence by Dynamic Parameter Tuning

Ryuto Yabuki, Yusaku Yamaguchi, Omar M. Abou Al-Ola, Takeshi Kojima, and Tetsuya Yoshinaga

Journal of ImagingDOI

査読付

Enhanced Image Reconstruction in Emission Tomography through Minimization of Extended Power-Divergence Measures

Yusaku Yamaguchi, Takeshi Kojima, and Tetsuya Yoshinaga

Journal of Nuclear Medicine

2023

査読付筆頭著者

Iterative Image Reconstruction Algorithm with Parameter Estimation by Neural Network for Computed Tomography

Takeshi Kojima, and Tetsuya Yoshinaga

AlgorithmsDOI

2022

査読付

Image Reconstruction Algorithm Using Weighted Mean of Ordered-Subsets EM and MART for Computed Tomography

Omar M. Abou Al-Ola, Ryosuke Kasai, Yusaku Yamaguchi, Takeshi Kojima, and Tetsuya Yoshinaga

MathematicsDOI

査読付

Block-Iterative Reconstruction from Dynamically Selected Sparse Projection Views Using Extended Power-Divergence Measure

Kazuki Ishikawa, Yusaku Yamaguchi, Omar M. Abou Al-Ola, Takeshi Kojima, and Tetsuya Yoshinaga

EntropyDOI

2021

査読付

Noise-Robust Image Reconstruction Based on Minimizing Extended Class of Power-Divergence Measures

Ryosuke Kasai, Yusaku Yamaguchi, Takeshi Kojima, Omar M. Abou Al-Ola, and Tetsuya Yoshinaga

EntropyDOI

2020

査読付

Hybrid Euler Method for Discretizing Continuous-Time Tomographic Dynamical System

Ryosuke Kasai, Yusaku Yamaguchi, Takeshi Kojima, and Tetsuya Yoshinaga

Journal of Signal ProcessingDOI

2018

査読付

Tomographic Image Reconstruction Based on Minimization of Symmetrized Kullback-Leibler Divergence

Ryosuke Kasai, Yusaku Yamaguchi, Takeshi Kojima, and Tetsuya Yoshinaga

Mathematical Problems in EngineeringDOI

2017

査読付筆頭著者

Multivalued Discrete Tomography Using Dynamical System That Describes Competition

Takeshi Kojima, Tetsushi Ueta, and Tetsuya Yoshinaga

Mathematical Problems in EngineeringDOI