Medical image processing apparatus, X-ray diagnostic apparatus, and X-ray computed tomography apparatus
First Claim
1. A medical image processing apparatus comprising:
- processing circuitry configured to;
generate a single transformed image by transforming pixel values, of a plurality of pixel values constituting a medical image, which are higher than a reference value corresponding to direct radiation components, which are components of X-rays not transmitted through an object, or non-direct radiation components, which are components of X-rays transmitted through a thin portion of the object, into lower pixel values;
transform the single transformed image into a single scattered ray image based on a scattering function; and
generate a scattered ray reduced image with reduced scattered rays by subtracting the single scattered ray image from the medical image.
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Abstract
An X-ray image processing apparatus includes a storage unit, a transformed image generation unit, a scattered ray image generation unit, and a scattered ray reduced image generation unit. The storage unit stores a medical image. The transformed image generation unit generates a transformed image by transforming pixel values, of a plurality of pixel values constituting the medical image, which are higher than a reference value obtained based on a representative value of the plurality of pixel values into pixel values lower than the reference value. The scattered ray image generation unit generates a scattered ray image based on the transformed image and a scattering function. The scattered ray reduced image generation unit generates a scattered ray reduced image with reduced scattered rays by using the medical image and the scattered ray image.
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Citations
9 Claims
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1. A medical image processing apparatus comprising:
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processing circuitry configured to; generate a single transformed image by transforming pixel values, of a plurality of pixel values constituting a medical image, which are higher than a reference value corresponding to direct radiation components, which are components of X-rays not transmitted through an object, or non-direct radiation components, which are components of X-rays transmitted through a thin portion of the object, into lower pixel values; transform the single transformed image into a single scattered ray image based on a scattering function; and generate a scattered ray reduced image with reduced scattered rays by subtracting the single scattered ray image from the medical image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification