# US 2026/0090776 A1 · Information processing apparatus, learning apparatus, information processing method, and information processing program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0090776 A1 - Document ID: US20260090776A1 - Status: Published application - Kind: A1 - Application number: 19/322,696 - Filed: 2025-09-09 - Published: 2026-04-02 - Earliest claimed: 2024-09-30 - Assignees: FUJIFILM Corporation - Applicants: FUJIFILM Corporation - Inventors: Taiga GOTO; Fuyuhiko TERAMOTO - Web page: https://patentgrep.com/patent/US20260090776A1 ## CPC - A61B 6/482: {involving multiple energy imaging} - A61B 6/032: {Transmission computed tomography [CT]} - A61B 6/4241: {using energy resolving detectors, e.g. photon counting} - A61B 6/463: {characterised by displaying multiple images or images and diagnostic data on one display} - A61B 6/481: {involving the use of contrast agents} - A61B 6/5241: {combining overlapping images of the same imaging modality, e.g. by stitching} - G06T 5/50: using two or more images, e.g. averaging or subtraction - G06T 11/00: Two-dimensional [2D] image generation - G06T 12/00: Tomographic reconstruction from projections - G16H 30/20: for handling medical images, e.g. DICOM, HL7 or PACS - G16H 30/40: for processing medical images, e.g. editing - G06T 2207/20224: Image subtraction - G06T 2211/408: Dual energy - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## Abstract An information processing apparatus includes a processor, in which the processor acquires a plurality of pieces of imaging data corresponding to radiation having different energies, and generates a color image from the plurality of pieces of imaging data, the color image having a color assigned based on an index obtained using energy information of the radiation. ## Claims ### Claim 1 An information processing apparatus comprising: a processor, wherein the processor is configured to: acquire a plurality of pieces of imaging data corresponding to radiation having different energies; and generate a color image from the plurality of pieces of imaging data, the color image having a color assigned based on an index obtained using energy information of the radiation. ### Claim 2 (depends on 1) The information processing apparatus according to claim 1, wherein the index is based on energy of the radiation, effective energy of the radiation, an effective atomic number, an electron density, or a feature value derived from the energy of the radiation, the effective energy of the radiation, the effective atomic number, or the electron density. ### Claim 3 (depends on 2) The information processing apparatus according to claim 2, wherein the processor is configured to mix pieces of imaging data corresponding to adjacent energies of the radiation into a single piece of imaging data and generate the color image. ### Claim 4 (depends on 2) The information processing apparatus according to claim 2, wherein the processor is configured to mix pieces of imaging data corresponding to adjacent energies of the radiation into a single piece of imaging data to reduce a difference in photon count between the pieces of imaging data, and generate the color image. ### Claim 5 (depends on 3) The information processing apparatus according to claim 3, wherein, in a case where the color image is a color image for identifying a substance having a K absorption edge, the processor is configured to: mix pieces of imaging data that are adjacent to each other in an energy direction such that the K absorption edge is not straddled. ### Claim 6 (depends on 1) The information processing apparatus according to claim 1, wherein the color image is a virtual monochromatic X-ray image. ### Claim 7 (depends on 1) The information processing apparatus according to claim 1, wherein the color image is a substance discrimination image. ### Claim 8 (depends on 1) The information processing apparatus according to claim 1, wherein the processor is configured to: generate a reconstructed image by reconstructing, for each color, the imaging data to which a color is assigned. ### Claim 9 (depends on 1) The information processing apparatus according to claim 1, wherein the processor is configured to: reconstruct the imaging data for each energy of the radiation to generate a plurality of reconstructed images; generate a difference image of the reconstructed image for each energy of the radiation; and assign a color to the difference image to generate the color image. ### Claim 10 (depends on 1) The information processing apparatus according to claim 1, wherein the processor is configured to: assign the color according to an interval of energy of the radiation or effective energy of the radiation. ### Claim 11 (depends on 1) The information processing apparatus according to claim 1, wherein the processor is configured to: generate a composite image by combining a plurality of the color images to which different colors are assigned. ### Claim 12 (depends on 1) The information processing apparatus according to claim 1, wherein the processor is configured to: display a plurality of the color images, each having a different color, under window conditions corresponding to the respective colors. ### Claim 13 (depends on 1) The information processing apparatus according to claim 1, wherein the imaging data is obtained through imaging using a contrast agent, and the processor is configured to: extract specific color information corresponding to the contrast agent; and output a time-concentration curve of the contrast agent. ### Claim 14 (depends on 1) The information processing apparatus according to claim 1, wherein the imaging data is obtained through imaging using a contrast agent, and the processor is configured to: extract specific color information corresponding to the contrast agent; estimate a time-concentration curve of the contrast agent based on the extracted color information; and specify a start timing of main imaging. ### Claim 15 (depends on 1) A learning apparatus configured to generate an image processing model by performing machine learning on a machine learning model using training data including a set of a color image generated by the information processing apparatus according to claim 1 and a ground truth processed image, the image processing model being configured to receive the color image as an input and output a processed image. ### Claim 16 An information processing method comprising: causing a processor to: acquire a plurality of pieces of imaging data corresponding to radiation having different energies; and generate a color image from the plurality of pieces of imaging data, the color image having a color assigned based on an index obtained using energy information of the radiation. ### Claim 17 A non-transitory computer-readable storage medium storing an information processing program for causing a processor to execute a process comprising: acquiring a plurality of pieces of imaging data corresponding to radiation having different energies; and generating a color image from the plurality of pieces of imaging data, the color image having a color assigned based on an index obtained using energy information of the radiation.