METHOD, SYSTEM AND APPARATUS FOR PROCESSING RADIOGRAPHIC IMAGES OF SCANNED OBJECTS
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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.
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Citations
30 Claims
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1-15. -15. (canceled)
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16. A radiographic inspection system, comprising:
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a computer adapted to be in signal communication with an imaging system, the imaging system adapted to acquire and output radiographic image data of a scanned object; and a real-time image controller in signal communication with the computer; the computer comprising; a processor to execute operations according to a set of instructions provided by installed application software; at least one memory to store the application software and to store the image data; and an input device and a display device operable as a graphical user interface to configure and operate the inspection system; the real-time image controller comprising; at least one of a set of image control buttons and a set of image control dials; and an application programming interface to map the functions of the control buttons and dials to the application software. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification