Invention Grant
US07522756B2 Method, system and apparatus for processing radiographic images of scanned objects
失效
用于处理扫描物体的放射照相图像的方法,系统和装置
- Patent Title: Method, system and apparatus for processing radiographic images of scanned objects
- Patent Title (中): 用于处理扫描物体的放射照相图像的方法,系统和装置
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Application No.: US11684176Application Date: 2007-03-09
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Publication No.: US07522756B2Publication Date: 2009-04-21
- Inventor: 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
- Applicant: 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
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Penny A. Clarke
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
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.
Public/Granted literature
- US20080166033A1 METHOD, SYSTEM AND APPARATUS FOR PROCESSING RADIOGRAPHIC IMAGES OF SCANNED OBJECTS Public/Granted day:2008-07-10
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