公开(公告)号：US07522756B2

公开(公告)日：2009-04-21

申请号：US11684176

申请日：2007-03-09

申请人： Clifford Bueno ,  Elizabeth Lokenberg Dixon ,  Walter Vincent Dixon ,  Forrest Frank Hopkins ,  Michael Robert Hopple ,  Brian Walter Lasiuk ,  Ronald Cecil McFarland ,  August David Matula ,  Robert James Mitchell, Jr. ,  Kevin Layne Moermond ,  Gregory Alan Mohr

发明人： Clifford Bueno ,  Elizabeth Lokenberg Dixon ,  Walter Vincent Dixon ,  Forrest Frank Hopkins ,  Michael Robert Hopple ,  Brian Walter Lasiuk ,  Ronald Cecil McFarland ,  August David Matula ,  Robert James Mitchell, Jr. ,  Kevin Layne Moermond ,  Gregory Alan Mohr

IPC分类号： G06K9/00

CPC分类号： G06T5/009 ,  A61B6/583 ,  G01N2223/42 ,  G06T1/20 ,  G06T2200/24 ,  G06T2207/10116

摘要： A method, system and apparatus for processing a radiographic image of a scanned object is disclosed. A pixel offset correction is performed in integer format on the radiographic image using saturation arithmetic to produce an image in integer format with any negative corrected values clipped to a value of zero. The resulting pixels are converted to floating point format and the converted pixels are multiplied by a gain factor. Optionally the resulting pixels are recursively averaged with previous results. The resulting pixels are converted to integer format and the converted pixel values are clamped to a maximum value using saturation arithmetic. Non-functional pixel correction is performed in integer format and the resulting pixel values are clamped to a maximum value using saturation arithmetic. An optional processing path replaces the recursive average by a linear average. The resulting pixel values are optionally filtered to enhance features of interest. The resulting pixel value is mapped in integer format to a palette index to establish an output pixel intensity having one of many intensity levels. The optional processing is controlled through the hardware interface of a real-time image controller as images are acquired.

摘要翻译： 公开了一种用于处理扫描对象的放射线图像的方法，系统和装置。 使用饱和运算在放射线照相图像上以整数格式执行像素偏移校正，以产生整数格式的图像，任何负校正值被削减到零值。 将所得到的像素转换为浮点格式，并将转换的像素乘以增益因子。 可选地，所得到的像素与先前的结果递归地平均。 所得到的像素被转换为整数格式，并且使用饱和运算将转换的像素值钳位到最大值。 以整数格式执行非功能像素校正，并且使用饱和算术将所得到的像素值钳位到最大值。 可选的处理路径将递归平均值替换为线性平均值。 所得到的像素值可选地被过滤以增强感兴趣的特征。 将所得到的像素值以整数格式映射到调色板索引，以建立具有许多强度级别之一的输出像素强度。 当获取图像时，通过实时图像控制器的硬件接口来控制可选处理。

公开(公告)号：US06658089B1

公开(公告)日：2003-12-02

申请号：US10064417

申请日：2002-07-11

申请人： Gregory Alan Mohr ,  Elizabeth Lokenberg Dixon ,  Michael Robert Hopple ,  August David Matula

发明人： Gregory Alan Mohr ,  Elizabeth Lokenberg Dixon ,  Michael Robert Hopple ,  August David Matula

IPC分类号： H05G128

CPC分类号： G01N23/04

摘要： An image identification and quality indication system for radiographic inspection includes a flexible substrate, for positioning on a surface of an object to be inspected, and a number of locators and image quality indicators arranged on the flexible substrate. Each locator is configured for indicating a position on the object's surface in a respective radiographic image (image). Each image quality indicator is configured to indicate an image quality of the respective image. An image identification and quality indication method for radiographic inspection includes positioning the flexible substrate on the object's surface, including aligning the locators with a number of visible features on object's surface. The method further includes forming at least one reference mark and image quality mark in each of a number of images of the object, using a locator and image quality indicator, respectively. Each reference mark correlates the respective image with a position on the object.

摘要翻译： 用于放射线检查的图像识别和质量指示系统包括用于定位在待检查对象的表面上的柔性基板，以及布置在柔性基板上的多个定位器和图像质量指示器。 每个定位器被配置用于在相应的放射照相图像（图像）中指示对象表面上的位置。 每个图像质量指示符被配置为指示相应图像的图像质量。 用于放射线检查的图像识别和质量指示方法包括将柔性基板定位在物体的表面上，包括将定位器与物体表面上的多个可见特征对准。 该方法还包括分别使用定位器和图像质量指示器在对象的多个图像中的每一个中形成至少一个参考标记和图像质量标记。 每个参考标记将相应的图像与对象上的位置相关联。