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1. 发明授权

US07254261B2 Signal-adaptive noise reduction in digital radiographic images 失效
标题翻译：数字放射照相图像中的信号自适应降噪
公开(公告)号：US07254261B2
公开(公告)日：2007-08-07
申请号：US10731762
申请日：2003-12-09
申请人： Gopal B. Avinash , Kadri Nizar Jabri , John L. Seamans
发明人： Gopal B. Avinash , Kadri Nizar Jabri , John L. Seamans
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , G06T2207/10116 , G06T2207/20012 , G06T2207/30004 , H04N5/217 , H04N5/32
摘要： Signal-adaptive noise reduction in digital radiographic images is described herein. Embodiments comprise methods for signal-adaptive noise reduction in digital radiographic images, comprising the steps of: obtaining raw x-ray image data of an imaged object; processing the raw x-ray image data to create processed x-ray image data; inputting at least one of the raw x-ray image data and the processed x-ray image data to an image processor; developing at least one of a first intensity modulation image from the raw x-ray image data and a second intensity modulation image from the processed x-ray image data; deriving a structure-dependent noise filtered image using the processed x-ray image data; performing signal attenuation-dependent blending; and creating a noise-reduced digital x-ray image therefrom. Computer-readable mediums encoded with programming for facilitating signal-adaptive noise reduction in digital radiographic images, and digital radiographic imaging systems comprising such programming, are also described.
摘要翻译：这里描述了数字放射照相图像中的信号自适应降噪。实施例包括用于数字放射线照相图像中的信号自适应噪声降低的方法，包括以下步骤：获得成像对象的原始X射线图像数据; 处理原始X射线图像数据以产生经处理的X射线图像数据; 将原始x射线图像数据和经处理的x射线图像数据中的至少一个输入到图像处理器; 从原始x射线图像数据和来自处理的x射线图像数据的第二强度调制图像显影第一强度调制图像中的至少一个; 使用经处理的x射线图像数据导出与结构相关的噪声滤波图像; 执行信号衰减依赖性混合; 并从中产生噪声降低的数字X射线图像。还描述了用用于促进数字放射照相图像中的信号自适应噪声降低的编程编码的计算机可读介质，以及包括这种编程的数字放射照相成像系统。

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