公开(公告)号：US20220110602A1

公开(公告)日：2022-04-14

申请号：US17070546

申请日：2020-10-14

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Weifeng SHANG ,  Joseph MANAK ,  John BAUMGART

IPC: A61B6/00 ,  G06T7/11

Abstract: A method of imaging includes obtaining a first image including projection data representing an intensity of X-rays detected by a plurality of detectors at a first X-ray exposure setting, the X-rays being emitted from an X-ray source; based on a detection result of a first object in the first image: determining a background region of interest (ROI) around the first object, the background ROI including background ROI pixels having a first intensity value corresponding to the intensity of the X-rays; and converting, for each pixel of the background ROI pixels, the first intensity values of the background ROI pixels to a normalized X-ray attenuation factor; and determining a second X-ray exposure setting for use in obtaining a second image based on the background ROI pixels converted to the normalized X-ray attenuation factor.

公开(公告)号：US20210082374A1

公开(公告)日：2021-03-18

申请号：US16570731

申请日：2019-09-13

Applicant: Canon Medical Systems Corporation

Inventor： James BEGELMAN ,  Victor GORIN ,  Joseph MANAK

IPC: G09G5/373 ,  G06T11/00 ,  G06T3/40 ,  G06T3/60 ,  G09G5/06

Abstract: A system, method and computer readable medium to render, as a single image, source data from a network of data providers, that provide source data of a respective data type. A composition space contains two-dimensional (2D) display surfaces to which the source data is provided from the data providers, and transformation operator surfaces, which are located at different positions in a depth direction than the 2D display surfaces. Each of the transformation operator surfaces represent a respective visual transformation operation on surfaces of the 2D display surfaces that are positioned at lesser depths than the transformation operator surface. Using data-centric communication, updates are published to the 2D display surfaces, the updates including the source data from the data providers, and, upon detecting an update to a subscribed 2D display surface, the subscribed 2D display surface is rendered as the single image by performing the visual transformation operations.