학술논문

A Simulation Study of Radiographic Image Quality Measurement Based on Transmitted Information / 伝達情報量に基づくX線画像画質評価法に関するシミュレーション実験
Document Type
Journal Article
Source
日本放射線技術学会雑誌 / Japanese Journal of Radiological Technology. 2007, 63(3):341
Subject
entropy
image quality
noise
resolution
transmitted information
Language
Japanese
ISSN
0369-4305
1881-4883
Abstract
Although radiographic image quality is considered difficult to evaluate in a straightforward and systematic manner, it may be possible by using an index of transmitted information. As a preliminary study, relations between transmitted information and two image characteristics, namely, image noise and image blurring, were evaluated by simulation. The value of transmitted information was decreased if image noise and image blurring increased. The relationships were corroborated on an experimental basis. This paper suggests the possibility of a simple, straightforward method for synthetically evaluating radiographic images by a single parameter in terms of transmitted information.