Výsledky vyhledávání - "Gene Katsevich"

Adaptive multi-scale total variation minimization filter for low dose CT imaging

Autor: Roman Krylov, Bibo Shi, Zhi Yang, Gene Katsevich, Alexander A. Zamyatin

Publikováno v: Medical Imaging: Image Processing

In this work we revisit TV filter and propose an improved version that is tailored to diagnostic CT purposes. We revise TV cost function, which results in symmetric gradient function that leads to more natural noise texture. We apply a multi-scale ap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cff1733131eaa5aa3ed39a199004cb0
https://doi.org/10.1117/12.2043841

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Image registration for motion estimation in cardiac CT

Autor: Alexander Katsevich, Gene Katsevich, Bibo Shi, Be-Shan Chiang, Alexander A. Zamyatin

Publikováno v: SPIE Proceedings.

Motion estimation is a very important method for improving image quality by compensating the cardiac motion at the best phase reconstructed. We tackle the cardiac motion estimation problem using an image registration approach. We compare the performa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ed73d5d4df42387dc89daaec5f32395
https://doi.org/10.1117/12.2043559

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