05892840 is referenced by 22 patents and cites 17 patents.

An automated method and apparatus are disclosed for detecting the irradiation field of a radiographic image, wherein digital image data is acquired and subjected to multiple phases of digital imaging processes. The image is first acquired by a radiation image recording apparatus through a landmark-synthesizing device that generates landmark patterns on the acquired image. These patterns are indicative of where the irradiation field is located, and are subsequently detected by digital image processing techniques. Next, the irradiation field is robustly and efficiently identified through these landmark patterns. An irradiation map is then created that functions as a template for any further image processing to be done on the irradiation field. Once the irradiation field is identified, the landmark patterns are removed from the acquired image using digital image processing techniques if desired. Finally, a mask image is generated to reduce the flare effect of the output image in areas that have received very little radiation, making the output image both diagnostically useful and aesthetically pleasing.

Title
Method and apparatus for irradiation field detection in digital radiographic images
Application Number
8/608834
Publication Number
5892840
Application Date
February 29, 1996
Publication Date
April 6, 1999
Inventor
Thomas R Mergler
Rochester
NY, US
Ben K Jang
Rochester
NY, US
Agent
William F Novel
Assignee
Eastman Kodak Company
NY, US
IPC
H04N 5/20
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