A method for providing corrected x-ray images of a recording object and a correspondingly configured x-ray system are provided. In the method, a first x-ray image recorded prior to introducing a contrast agent and a second x-ray image of the recording object recorded after introducing the contrast agent are provided. A ring correction for eliminating ring artifacts is applied to the first x-ray image and the second x-ray image in each case. In order to provide corrected x-ray images with an improved image quality, provision is made with the ring correction of the first x-ray image for a ring image, which contains artifact data extracted from the first x-ray image, to be obtained and stored and for the ring correction of the second x-ray image for the ring image obtained with the ring correction of the first x-ray image to be used.

The present disclosure relates to a method for generating an image. The method may include obtaining a preliminary image of an object. The method may include determining a plurality of point radiation sources of at least one array radiation source at least partially based on an ROI of the object. The method may include determining at least one scanning parameter associated with the plurality of point radiation sources based on the preliminary image. The method may include causing the plurality of point radiation sources to emit radiation beams to the ROI to generate scan data relating to the ROI based on the at least one scanning parameter. The method may include obtaining scan data relating to the ROI. The method may further include generating a target image of the ROI based on the scan data relating to the ROI.

Systems, methods, and devices for capturing a single image with multiple exposures is provided. An imaging device may be provided comprising a source configured to emit a wave for a time period and a detector configured to receive a signal indicative of the wave. A wave may be emitted for a time period and a signal may be received indicative of the emitted wave. A first image dataset may be saved with a first timestamp referencing a first time within the time period. A second image dataset may be saved with a second timestamp referencing a second time within the time period. The second time may occur after the first time.

The present disclosure relates to systems and methods for taking X-ray images. The method may include obtaining reference data associated with an object, the reference data including at least one of height data or historical data. The method may also include determining at least one of a start point or an end point of an imaging region associated with the object based on the reference data. The method may further include causing to take an X-ray image of the imaging region based on at least one of the start point or the end point.

An X-ray imaging method of taking an X-ray image of a subject includes irradiating the subject with an X-ray at a first dose and taking a first X-ray image of the subject, irradiating the subject with an X-ray at a second dose lower than the first dose and taking a second X-ray image of the subject, and inputting the second X-ray image into a trained model trained by machine learning to modify the second X-ray image.

A computer-implemented method includes generating, via a processor, synthetic vessels. The method also includes performing, via the processor, three-dimensional (3D) computational fluid dynamics (CFD) on the synthetic vessels for different flow rates to generate 3D CFD data. The method further includes extracting, via the processor, 3D image patches from the synthetic vessels. The method even further includes obtaining, via the processor, pressure drops across the 3D image patches from the 3D CFD data. The method yet further includes training, via the processor, a deep neural network utilizing the 3D image patches, the pressure drops, and associated flow rates to generate a trained deep neural network.

An imaging method comprises the steps of: putting an object in a detection region, and biasing a detector (1-8) relative to the object; moving an imaging system along a longitudinal Z axis, enabling a ray source (1-7) and the detector (1-8) to synchronously perform circular movement around the object, performing scanning and data collection, and supplementing the data; and reconstructing the collected data to obtain a complete object image. The imaging method combines detector biasing and spiral scanning, solves the problem that an image splicing method used in conventional CT imaging generates artifacts, reduces the usage area of the detector, and reduces system cost.

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.

A radiographic image capturing system includes the following. A capturing stand includes a holder to hold radiographic image capturing devices. A radiation irradiator irradiates the radiographic image capturing devices loaded in the holder at once. An image processor generates a plurality of images based on image data acquired by the radiographic image capturing devices. The image processor removes a streaky component residing in the generated image to correct the image. Such process includes forming a smoothed image by smoothing with a low-pass filter, and subtracting an interpolation image to extract a streaky image from the smoothing image and adding the streaky image to remove the streaky component. The smoothing includes reflecting smoothing on pixels showing a subject structure using a low-pass filter with a size larger in the horizontal direction compared to pixels other than pixels showing the subject structure.

A medical imaging jig is provided with a foldable handle and an integral type foldable footstool, so that a patient having difficulty in movement can be easily and safely subject to medical imaging. In particular, the integral type foldable footstool is provided to be rotated on a hinge to be folded, a lead ruler provided on the rear surface of the medical imaging jig is slidably and detachably provided so that the lead ruler may be moved leftward or rightward or detached depending on the demand by a user, a handle provided on the medical imaging jig may be folded to allow positioning of an objected to be imaged, and omnidirectional wheels are provided on the lower end of the medical imaging jig.