Method of and apparatus for generating phase contrast image
AssigneeFuji Photo Film Co., Ltd.
InventorWataru Ito
Life of this patent
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Abstract
A phase contrast image is generated on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object. An enlargement/reduction processing is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and a phase contrast image is generated on the basis of the radiation images thus processed.
Claims12
A method of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object, wherein the improvement comprises that
- an enlargement/reduction processing is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and
- a phase contrast image is generated on the basis of the radiation images thus processed.
A method of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object, wherein the improvement comprises that
- a density correction processing is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their densities, and
- a phase contrast image is generated on the basis of the radiation images thus processed.
An apparatus for generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object, wherein the improvement comprises
- an enlargement/reduction processing means which carries out an enlargement/reduction processing on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and
- an arithmetic means which generates a phase contrast image on the basis of the radiation images thus processed.
An apparatus for generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object, wherein the improvement comprises that
- a density correction processing means which carries out a density correction processing on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their densities, and
- an arithmetic means which generates a phase contrast image on the basis of the radiation images thus processed.
A computer program for causing a computer to perform a procedure of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object comprising
- an enlargement/reduction processing step which is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and
- a phase contrast image generation step of generating a phase contrast image on the basis of the radiation images thus processed.
A computer program for causing a computer to perform a procedure of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object comprising
- a density correction processing step which is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their densities, and
- a phase contrast image generating step of generating a phase contrast image on the basis of the radiation images thus processed.
A computer readable medium in which is recorded computer program for causing a computer to perform a procedure of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object which procedure comprising
- an enlargement/reduction processing step which is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and
- a phase contrast image generation step of generating a phase contrast image on the basis of the radiation images thus processed.
A computer readable medium as defined in claim 11 in which the procedure further comprises a density correction processing step which is further carried out, in addition to the enlargement/reduction processing, on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their densities, and
- a phase contrast image generation step of generating a phase contrast image on the basis of the radiation images thus processed.
A computer readable medium in which is recorded computer program for causing a computer to perform a procedure of generating a phase contrast image on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object which procedure comprising
- a density correction processing step which is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their densities, and
- a phase contrast image generating step of generating a phase contrast image on the basis of the radiation images thus processed.
Dependencies are inferred from the claim text.