4 papers
Multi-Kernel TOF-PET Image Reconstruction Using ADMM
Kibo Ote, Fumio Hashimoto, Yuya Onishi +3
Time-of-flight positron emission tomography (TOF-PET) detectors exhibiting multiple coincidence time resolution (CTR) components, such as those induced by the mixing of Cherenkov a…
Machine learning enables experimental access to photon-by-photon arrival times in scintillation detectors
Yuya Onishi, Ryosuke Ota, Fumio Hashimoto +4
Scintillation detectors with excellent timing resolution enable more precise localization of radiation sources in positron emission tomography, leading to substantial improvements…
PET Image Reconstruction Using Deep Diffusion Image Prior
Fumio Hashimoto, Kuang Gong
Diffusion models have shown great promise in medical image denoising and reconstruction, but their application to Positron Emission Tomography (PET) imaging remains limited by trac…
Limited-angle SPECT image reconstruction using deep image prior
Kensuke Hori, Fumio Hashimoto, Kazuya Koyama +1
In SPECT image reconstruction, limited-angle (LA) conditions lead to a loss of frequency components, which distort the reconstructed tomographic image along directions correspondin…