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This article describes a technique for digital separation of the primary and scatter components of a radiographic image. The method involves mathematical modeling of the process whereby an antiscatter grid reduces scatter patterns in film radiographs. Two superimposable radiographs (one taken with and the other without an intervening antiscatter grid) are applied to the model. Performance characteristics of the grid (primary and scatter transmittance factors) are also determined and used in the model. Radiographs of a humanoid chest phantom are processed. Scatter/primary separation appears to be accurate to within 15%. Film images that are quantitatively faithful to the calculated primary and scatter fields are included.
K S White, and
B Baxter, and
J A Nelson
August 1993,
Investigative radiology,
K S White, and
B Baxter, and
J A Nelson
July 1994,
Medical & biological engineering & computing,
K S White, and
B Baxter, and
J A Nelson
January 1990,
Journal of thoracic imaging,
K S White, and
B Baxter, and
J A Nelson
December 1989,
AJR. American journal of roentgenology,
K S White, and
B Baxter, and
J A Nelson
November 1996,
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K S White, and
B Baxter, and
J A Nelson
August 1987,
AJR. American journal of roentgenology,
K S White, and
B Baxter, and
J A Nelson
January 2005,
Radiation protection dosimetry,
K S White, and
B Baxter, and
J A Nelson
January 1989,
Investigative radiology,
K S White, and
B Baxter, and
J A Nelson
August 1998,
Medical physics,
K S White, and
B Baxter, and
J A Nelson
May 1982,
Radiology,
