Blur compensation apparatus for X-ray image and medical X-ray imaging apparatus using the blur compensation apparatus
First Claim
1. A blur compensation apparatus for X-ray image of an object to be examined used for a medical X-ray imaging apparatus, which has an X-ray generator and an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device interposing therebetween said object held by an object holding means, wherein a sensor means for detecting blur movement of said object is provided near an objective projection position on said object holding means, and wherein a blur compensation process is executed for the X-ray image obtained by said X-ray imaging device, based on a positional change information which is calculated from a detection signal detected by said sensor means during X-ray radiography, said positional change information being the positional change amount with respect to said objective projection position relative to a reference position previously specified on said object holding means.
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Accused Products
Abstract
A blur compensation apparatus for X-ray image of an object to be examined used for a medical X-ray imaging apparatus, which has an X-ray generator and an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device interposing therebetween said object held by an object holding means, wherein a sensor means for detecting blur movement of said object is provided near an objective projection position on said object holding means, and wherein a blur compensation process is executed for the X-ray image obtained by said X-ray imaging device, based on a positional change information which is calculated from a detection signal detected by said sensor means during X-ray radiography, said positional change information being the positional change amount with respect to said objective projection position relative to a reference position previously specified on said object holding means.
37 Citations
11 Claims
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1. A blur compensation apparatus for X-ray image of an object to be examined used for a medical X-ray imaging apparatus, which has an X-ray generator and an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device interposing therebetween said object held by an object holding means, wherein
a sensor means for detecting blur movement of said object is provided near an objective projection position on said object holding means, and wherein a blur compensation process is executed for the X-ray image obtained by said X-ray imaging device, based on a positional change information which is calculated from a detection signal detected by said sensor means during X-ray radiography, said positional change information being the positional change amount with respect to said objective projection position relative to a reference position previously specified on said object holding means.
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8. A medical X-ray imaging apparatus for obtaining an X-ray image of an object to be examined which has an X-ray generator and an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device interposing therebetween said object held by an object holding means;
- wherein
said medical X-ray imaging apparatus comprises the blur compensation apparatus for an X-ray image, said blur compensation apparatus for X-ray image comprising a sensor means for detecting the blur movement of said object is provided near an objective projection position on said object holding means, and wherein a blur compensation process is executed for the X-ray image obtained by said X-ray imaging device based on a positional change information which is calculated from the detection signal detected by said sensor means during X-ray radiography, said positional change information being the positional change amount with respect to said objective projection position relative to a reference position previously specified on said object holding means. - View Dependent Claims (9)
- wherein
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10. A medical X-ray imaging apparatus for obtaining an X-ray image of an object to be examined, which has an X-ray generator, an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device being rotatable around a rotation center, and a object moving means for moving the object holding means for holding the object at least in a direction parallel to the rotation plane of said rotation, wherein:
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said medical X-ray imaging apparatus executes an X-ray CT radiography and an X-ray panoramic radiography; and
whereinsaid medical X-ray imaging apparatus comprises a blur compensation apparatus for X-ray image, said blur compensation apparatus comprising the object holding means having a chair for holding a human object in sitting position and a head fixing part for fixedly holding the human head provided at an upper part of the chair, and further wherein a sensor means for detecting the blur movement of the object is provided at said head fixing part and a reference position is set on said chair. - View Dependent Claims (11)
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Specification