A61B6/5241

Systems and methods for identifying bone marrow in medical images

Systems and method for identifying bone marrow in medical images are provided. A method includes obtaining a three-dimensional (3D) computed tomography (CT) volume data set corresponding to an imaged volume and identifying voxels in the 3D CT volume data set having a Hounsfield Unit (HU) value below a bone threshold. The voxels are identified without using image continuity. The method further includes marking the identified voxels as non-bone voxels, determining definite tissue voxels based on the identified non-bone voxels and expanding a region defined by the definite tissue voxels. The method also includes segmenting the expanded region to identify bone voxels and bone marrow voxels and identifying bone marrow as voxels that are not the bone voxels.

IMAGE DATA INSPECTION METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM
20220233160 · 2022-07-28 ·

This application relates to an image data inspection method and apparatus in the field of artificial intelligence (AI) technologies. The method includes obtaining an image to be inspected, the image to be inspected comprising a sequence of slice images; determining a corresponding group of slice images for each target image in the sequence of slice images; extracting a corresponding slice feature map for each slice image in the group of slice images; aligning the slice feature maps extracted corresponding to the group of slice images; aggregating context information of each slice image in the group of slice images by using an aligned feature map; and performing target region inspection on an aggregated feature map, to obtain an inspection result corresponding to the target image, and combining the inspection result corresponding to each target image, to generate an inspection result corresponding to the image to be inspected.

DEVICE AND METHOD FOR EDITING A PANORAMIC RADIOGRAPHY IMAGE
20210407159 · 2021-12-30 · ·

The present invention relates to a device for editing a panoramic radiography image of an examination object generated by a panoramic X-ray machine, comprising: an input interface for receiving the panoramic radiography image as well as reconstruction data of the panoramic radiography image, the reconstruction data including information on a course of projection lines of the panoramic radiography image between an X-ray source and an X-ray detector of the panoramic X-ray machine as well as information on an image surface of the panoramic radiography image; an evaluation unit for evaluating the reconstruction data and for determining an image section of the panoramic radiography image that has been generated on the basis of one of the projection lines with two intersection points with the image surface; an image editing unit for editing the panoramic radiography image based on the determined image section; and an output unit for outputting the edited panoramic radiography image. Moreover, the invention relates to a method for editing a panoramic radiography image of an examination object generated by a panoramic X-ray machine as well as a diagnosis system for examining a craniomaxillofacial area of a patient.

IMAGE SENSOR WITH RADIATION DETECTORS AND A COLLIMATOR
20210405222 · 2021-12-30 ·

Disclosed herein is a method comprising: aligning a collimator and a plurality of radiation detectors of an image sensor by: moving the radiation detectors along a first direction; moving the collimator along a second direction perpendicular to the first direction; rotating the collimator about an axis perpendicular to the first direction and the second direction; wherein the plurality of radiation detectors are configured to capture images of portions of a scene at different image capturing positions, respectively, and to form an image of the scene by stitching the images of the portions.

Image processing apparatus, image determination method and non-transitory computer-readable storage medium
11210809 · 2021-12-28 · ·

An image processing apparatus obtains a plurality of radiation images generated by causing a plurality of radiation detectors to detect radiation with which a subject is irradiated, and generates an elongated image by synthesizing the plurality of radiation images. The image processing apparatus estimates a direction of the subject in each of the plurality of radiation images, and determines a direction of the subject in the elongated image based on a direction estimation result on each of the plurality of radiation images.

X-ray imaging apparatus and control method thereof

An X-ray imaging apparatus and control method thereof precisely designates an imaging region and reduces user fatigue by designating a segmentation imaging region using an image of a target object captured by a camera and automatically controlling an X-ray generator according to the designated segmentation imaging region. The X-ray imaging apparatus includes an X-ray generator to perform X-ray imaging of a target object by generating and irradiating X-rays, an image capturer to capture an image of the target object, an image display to display the image captured by the image capturer, an input part to receive designation of a region for which segmentation imaging is to be performed on the image displayed on the image display, and a controller to control the X-ray generator to perform segmentation imaging with respect to the designated region.

Estimating the endoluminal path of an endoluminal device along a lumen
11202679 · 2021-12-21 · ·

Apparatus and methods are described for use with an endoluminal device that includes one or more radiopaque portions and that moves through a lumen of a subject. A sequence of radiographic images of a portion of the subject's body, in which the lumen is disposed, is acquired, during movement of the endoluminal device through the lumen. Locations at which the one or more radiopaque portions of the endoluminal device were imaged during the movement of the endoluminal device through the lumen are identified, by analyzing the sequence of radiographic images. A set of locations at which the one or more radiopaque portions were disposed during the movement of the endoluminal device through the lumen is defined, and an endoluminal path of the device through the lumen is estimated based upon the set of locations. Other applications are also described.

LINE SCANNER IMAGING DEVICE, SYSTEM, AND METHODS
20210386388 · 2021-12-16 ·

An imaging device for obtaining long-film images of an anatomical element of a patient or of another object includes a wheeled base comprising an elongate track; a trolley comprising a base portion slidably connected to the elongate track and an upper portion rotatably connected to the base portion, the trolley slidable along the elongate track a distance of at least 40 cm; a C-shaped arm defining a semi-circle about a C-shaped arm axis, the C-shaped arm rotatably supported by the upper portion of the trolley; a source fixedly secured to the C-shaped arm; and a detector fixedly secured to the C-shaped arm opposite the source.

SYSTEM AND METHOD FOR USING NON-CONTRAST IMAGE DATA IN CT PERFUSION IMAGING
20210386393 · 2021-12-16 · ·

A system and method for generating a parametric map of a subject's brain includes receiving non-contrast computed tomography (NCCT) imaging data and receiving computed tomography perfusion (CTP) data. The method further includes creating a baseline image by utilizing the NCCT data and generating a parametric map using the CTP data and the baseline image.

DUAL ROBOT CONTROL SYSTEMS FOR NON-DESTRUCTIVE EVALUATION

A system for non-destructive evaluation of an object uses a spherical coordinate system to control two robotic arms. In some examples, the system includes a radiation source coupled to one robotic arm, a radiation detector coupled to the other robotic arm; and a control unit configured to determine, based on input, a first position located on a first surface of a first sphere within the spherical coordinate system; determine, based on the input, a second position located on a second surface of a second sphere within the spherical coordinate system, wherein the second position is located opposite a midpoint of the spherical coordinate system from the first position; and control a motion of the source robotic arm and the detector robotic arm such that the radiation source and the radiation detector move to different ones of the first position and the second position.