摘要
针对计算机X射线影像(CR)扫描仪研发过程中对图像质量评价的需要,对CR图像质量原理进行了研究和归纳,并总结了一套测试方法。测试方法涵盖了CR图像质量中最常用的几个指标:空间分辨率、对比度分辨率、空间精度、图像噪声、CNR、量子探测效率(DQE)、MTF、伪影和擦除率等。根据这套测试方法对某CR原型机进行了验证,满足了设计和制作过程中对图像质量评价的需要。
Image quality （IQ） evaluation process is required for the development of computed radiography （CR） scanner. The theory of CR image quality was studied and a set of test methods were made. The CR test method covers the most commonly used image quality indicators：spatial resolution, contrast resolution, spatial accuracy, image noise, CNR, detective quantum efficiency （DQE）, MTF, artifacts and erasing rate. A CR enginnering model was validated based on this test method. The test method meets the requirement of IQ evaluation for design and production process.
出处
《电子设计工程》
2014年第21期142-144,148,共4页
Electronic Design Engineering
