发明名称 |
METHOD, SYSTEM AND APPARATUS FOR PROCESSING RADIOGRAPHIC IMAGES OF SCANNED OBJECTS |
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.
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申请公布号 |
US2008166033(A1) |
申请公布日期 |
2008.07.10 |
申请号 |
US20070684176 |
申请日期 |
2007.03.09 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BUENO CLIFFORD;DIXON ELIZABETH;DIXON WALTER;HOPKINS FORREST;HOPPLE MICHAEL;LASIUK BRIAN;MCFARLAND RONALD;MATULA AUGUST;MITCHELL ROBERT;MOERMOND KEVIN;MOHR GREGORY |
分类号 |
G01N23/04;G06K9/00;A61B6/00;G01T1/00;G01T1/17;G06T5/00;G06T5/40;G21K5/02 |
主分类号 |
G01N23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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