On the statistical nature of mammograms
On the statistical nature of mammograms
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DOI：
10.1118/1.598739
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发表时间：
1999-11-01
期刊：
影响因子：
3.8
通讯作者：
Clarke, LP
中科院分区：
文献类型：
--
作者：
Heine, JJ;Deans, SR;Clarke, LP
我们表明数字化乳房x线照片可以被认为是从一个简单的过程演变而来的。给定的图像是通过线性滤波操作传递随机输入字段而得到的，其中滤波器传递函数具有自相似特性。通过估计滤波器的函数形式并求解相应的滤波方程，分析表明输入场的灰度值分布和光谱含量可以用参数化方法逼近。该工作给出了一个简单的解释，为多样化的图像外观和多模态特征的灰度值分布常见的乳房x线照片。以图像分析为指导，生成具有真实乳房x光片许多统计特征的模拟乳房x光片。了解滤波器的功能形式以及输入域特征（包括乳房x线照片的近似参数描述，显示均匀致密和非致密图像之间的区别，以及质量分析方法的发展）可能会带来额外的好处。(C) 1999年美国医学物理学家协会。[s0099 - 2405(99) 00311 - 9]。
We show that digitized mammograms can be considered as evolving from a simple process. A given image results from passing a random input field through a linear filtering operation, where the filter transfer function has a self-similar characteristic. By estimating the functional form of the filter and solving the corresponding filtering equation, the analysis shows that the input field gray value distribution and spectral content can be approximated with parametric methods. The work gives a simple explanation for the variegated image appearance and multimodal character of the gray value distribution common to mammograms. Using the image analysis as a guide, a simulated mammogram is generated that has many statistical characteristics of real mammograms. Additional benefits may follow from understanding the functional form of the filter in conjunction with the input field characteristics that include the approximate parametric description of mammograms, showing the distinction between homogeneously dense and nondense images, and the development of mass analysis methods. (C) 1999 American Association of Physicists in Medicine. [S0099-2405(99)00311-9].