A method may include obtaining a breast image of an object that is acquired by an imaging device; determining a projection curve based on the breast image; determining a first valley point and a second valley point of the projection curve; determining a peak point of the projection curve based the first valley point and the second valley point of the projection curve; determining a first valley location, a second valley location, and a peak location in the breast image based on the peak point, the first valley point, and the second valley point of the projection curve; and determining a breast region in the breast image based on the first valley location, the second valley location, and the peak location.

A method may include obtaining a breast image of an object that is acquired by an imaging device; determining a projection curve based on the breast image; determining a first valley point and a second valley point of the projection curve; determining a peak point of the projection curve based the first valley point and the second valley point of the projection curve; determining a first valley location, a second valley location, and a peak location in the breast image based on the peak point, the first valley point, and the second valley point of the projection curve; and determining a breast region in the breast image based on the first valley location, the second valley location, and the peak location.

Systems and methods for digital X-ray imaging are disclosed. An example portable X-ray scanner includes: an X-ray detector configured to generate digital images based on incident X-ray radiation; an X-ray tube configured to output X-ray radiation; a computing device configured to control the X-ray tube, receive the digital images from the X-ray detector, and output the digital images to a display device; a power supply configured to provide power to the X-ray tube, the X-ray detector, and the computing device; and a frame configured to: hold the X-ray detector, the computing device, and the power supply; and hold the X-ray tube such that the X-ray tube directs the X-ray radiation to the X-ray detector.

Systems and methods for digital X-ray imaging are disclosed. An example portable X-ray scanner includes: an X-ray detector configured to generate digital images based on incident X-ray radiation; an X-ray tube configured to output X-ray radiation; a computing device configured to control the X-ray tube, receive the digital images from the X-ray detector, and output the digital images to a display device; a power supply configured to provide power to the X-ray tube, the X-ray detector, and the computing device; and a frame configured to: hold the X-ray detector, the computing device, and the power supply; and hold the X-ray tube such that the X-ray tube directs the X-ray radiation to the X-ray detector.

Methods, devices, and systems for processing ray data are provided. The methods include: smoothing initial ray data based on collection of a detector of a CT device through at least two time windows to obtain smoothed ray data corresponding to each time window having a different window length, the initial ray data including attenuation values of rays passing through an object to be examined and being obtained at a sampling frequency within a specified time period, determining initial fluctuating data based on the initial ray data and smoothed ray data corresponding to one of the time windows, the initial fluctuating data being associated with a fluctuation due to occlusion of the rays by a collimator of the CT device, and removing the fluctuation from the initial ray data to obtain target ray data based on the smoothed ray data corresponding to each time window and the initial fluctuating data.

Various methods and systems are provided for stationary CT imaging. In one embodiment, a method for an imaging system includes activating an emitter of a plurality of emitters of a stationary distributed x-ray source unit to emit an x-ray beam toward an object within an imaging volume, where the x-ray source unit does not rotate around the imaging volume, receiving the x-ray beam at a subset of detector elements of a plurality of detector elements of one or more detector arrays, sampling the plurality of detector elements to generate a total transmission profile, an attenuation profile, and a scatter measurement, generating a scatter-corrected attenuation profile by entering the total transmission profile, the attenuation profile, and the scatter measurement as inputs to a model, and reconstructing one or more images from the scatter-corrected attenuation profile.

Various methods and systems are provided for stationary CT imaging. In one embodiment, a method for an imaging system includes activating an emitter of a plurality of emitters of a stationary distributed x-ray source unit to emit an x-ray beam toward an object within an imaging volume, where the x-ray source unit does not rotate around the imaging volume, receiving the x-ray beam at a subset of detector elements of a plurality of detector elements of one or more detector arrays, sampling the plurality of detector elements to generate a total transmission profile, an attenuation profile, and a scatter measurement, generating a scatter-corrected attenuation profile by entering the total transmission profile, the attenuation profile, and the scatter measurement as inputs to a model, and reconstructing one or more images from the scatter-corrected attenuation profile.

An anti-scatter collimator is for arrangement in a stacked construction with an X-ray detector. In an embodiment, the anti-scatter collimator includes collimator walls arranged adjacently at least along a first direction. The collimator walls are mutually spaced to provide a through-channel between each pair of adjacent collimator walls. The through-channels provided by the arrangement of the multiplicity of collimator walls are at least partially filled with a filler material.

An anti-scatter collimator is for arrangement in a stacked construction with an X-ray detector. In an embodiment, the anti-scatter collimator includes collimator walls arranged adjacently at least along a first direction. The collimator walls are mutually spaced to provide a through-channel between each pair of adjacent collimator walls. The through-channels provided by the arrangement of the multiplicity of collimator walls are at least partially filled with a filler material.

Some embodiments of a device comprise a shuttle member, wherein the shuttle member includes a body, wherein the body includes an opening that extends through the body, and wherein at least part of the shuttle is radiopaque; a first actuator; and a second actuator, wherein the first actuator and the second actuator are positioned on opposite sides of the shuttle member, wherein the first actuator is configured to move the shuttle member in a first direction, and wherein the second actuator is configured to move the shuttle member in a second direction that is opposite to the first direction.