Image processing device, image processing method, and image processing program

The image processing apparatus adjusts pixel values in CT images using multiple radiation data to accurately discriminate substances, addressing unnatural image portions and enhancing image clarity by suppressing or enhancing pixel values based on derived accuracy.

WO2026110511A1PCT designated stage Publication Date: 2026-05-28FUJIFILM CORP
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
FUJIFILM CORP
Filing Date
2025-10-06
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing image processing techniques using dual-energy CT can lead to unnatural portions in radiation images due to misjudgment of substances, causing artifacts like blooming artifacts in calcified regions.

Method used

An image processing apparatus and method that uses multiple radiation data with different energies to derive a probability of a substance for each pixel, adjusting pixel values based on this probability to suppress or enhance them accordingly, thereby reducing unnatural image portions.

Benefits of technology

This approach effectively suppresses the occurrence of unnatural parts in radiographic images, particularly in CT images, by accurately discriminating substances and adjusting pixel values based on derived accuracy, enhancing image clarity and reducing artifacts.

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Abstract

An image processing device according to the present invention acquires a plurality of pieces of radiation data having different radiation energies, and uses the plurality of pieces of radiation data to derive, for each pixel, a probability representing a likelihood of a preset substance, and generates a radiation image in which pixel values ​​of pixels corresponding to pixels of the radiation data are suppressed or emphasized depending on the probability.
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Citation Information

Patent Citations

  • Image processing for spectral CT

    JP2014522693A

  • Medical image diagnostic apparatus and medical image processing apparatus

    JP2016087469A

  • Medical image processing device, medical image processing method, and medical image processing program

    JP2018166657A