Work

Research on CT System Image based on Back Projection Reconstruction Model

Year: 2024

Type: article

Abstract: CT technology has been widely used in clinical medicine, industrial engineering and other fields in contemporary society. Since the traditional back projection reconstruction algorithm will introduce star artifacts, we decide to use a parallel beam filtered back projection reconstruction model based on Radon changes and R-L filters. Since the rotation center of the system does not coincide with the geometric center, the data will be missing when using Radon transformation, so we carry out "edging" processing on the square tray. After processing the data to remove the gain (where the gain coefficient is 2.0033) and removing the "edge" at the end of the filtering, we reconstructed the detected object and obtained the absorption rates of the ten points required by the problem as follows :0.0126, 2.2902, 5.9159, 0.0163, 0.0823, 3.1336, 6.0333, 0.0000, 7.7184, 0.0861.

Source: Frontiers in Computing and Intelligent Systems

DOI: 10.54097/dmkac495

Authors: Ruofeng Yu, Yating Wu, Ruoyu Yu

Institutions: Fujian University of Traditional Chinese Medicine, Xiamen University Tan Kah Kee College

Language: English

Topic: Medical Imaging Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: diamond

OpenAlex ID: W4404767190

FWCI:

Cites: 8

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Related to: 10