Methods and apparatus for preserving orientation information in radiography images
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United States of America Patent
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Jul 21, 2009
Grant Date -
Apr 12, 2007
app pub date -
Apr 15, 2006
filing date -
Apr 12, 2002
priority date (Note) -
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Abstract
A method for preserving orientation information in an image may comprise: collecting image data, including orientation information inherent to collecting the image data; and embedding in the image data an orientation mark unambiguously identifying when the image data is presented in a correct viewing orientation. Image data is stored in a medium together with data forming an embedded orientation mark which is bilaterally asymmetrical in at least two orthogonal axes. In a variation, the data forming the embedded orientation mark further comprises at least one humanly recognizable text or punctuation character, word or trademark.
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