Abstract: Provided are an image acquisition method, an imaging system, calibration equipment and a storage medium. The image acquisition method includes: acquiring a projection image formed by an imaging beam passing through a barrier array plate; acquiring scattered sampling points corresponding to the barrier posts in the projection image; interpolating a vacancy between every adjacent scattered sampling points to obtain interpolated sampling points; and acquiring a scattering distribution map corresponding to the projection image based on the scattered signals of the scattered sampling points and of the interpolated sampling points.

Abstract: Provided is a method for determining tube electrical parameters. The method includes: acquiring target projection data of an imaging device in scanning a target object at a first scan angle; acquiring target noise data corresponding to the target object; determining current noise data corresponding to the target projection data; and determining, based on the target noise data and the current noise data, the tube electrical parameters of the imaging device in scanning the target object at a second scan angle.

Abstract: Provided are an image acquisition method, an imaging system, calibration equipment and a storage medium. The image acquisition method includes: acquiring a projection image formed by an imaging beam passing through a barrier array plate; acquiring scattered sampling points corresponding to the barrier posts in the projection image; interpolating a vacancy between every adjacent scattered sampling points to obtain interpolated sampling points; and acquiring a scattering distribution map corresponding to the projection image based on the scattered signals of the scattered sampling points and of the interpolated sampling points.

Abstract: Provided is a method for determining tube electrical parameters. The method includes: acquiring target projection data of an imaging device in scanning a target object at a first scan angle; acquiring target noise data corresponding to the target object; determining current noise data corresponding to the target projection data; and determining, based on the target noise data and the current noise data, the tube electrical parameters of the imaging device in scanning the target object at a second scan angle.

Abstract: A medical image reconstruction method includes: obtaining real projection data collected by a medical imaging device; obtaining an inverse matrix corresponding to the medical imaging device that is physically stored in advance, in which the inverse matrix is obtained by performing an inverse operation based on a system matrix corresponding to the medical imaging device, and the system matrix indicating a geometrical relationship between projection rays of the medical imaging device at each view angle and of reconstructed image pixels; and determining a reconstructed image of the real projection data according to the real projection data and the inverse matrix. By storing a large inverse matrix of the system matrix, rapid image reconstruction may be achieved through the inverse matrix and the real projection data, reconstruction efficiency of a medical image may be improved, and wide application and development of iterative reconstruction technology in clinical practice may be promoted.