| 摘要 |
An automated method and system for determining the positional orientation of radiographic images, wherein digital image data is acquired and subjected to multiple phases of digital imaging processing. The image is processed to segment the object of interest, i.e., a body region, from the foreground and background of the image. Next, the center is determined for the body region. The body region center is then positioned so that it coincides with the center of the film or medium. The image is subsequently decomposed into one or more horizontal and vertical strips. Feature extraction is performed on these strips to preliminarily determine the orientation of the image. Finally, a set of rules is applied to the image information described above to determine the positional orientation of the image.
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