Cone-beam computed tomography imaging devices, systems, and methods

A cone-beam computer tomography imaging method comprising:

• acquiring a plurality of sets of projection images of a target volume using an X-ray source, each of the plurality of sets of projection images being associated with a plurality of locations of the X-ray source along a respective one of a plurality of scanning arc segments, and a respective one of a plurality of locations of the treatment couch along one or more planes that are orthogonal to the rotation axis of the X-rays source;
• and
• generating a three-dimensional image of the volume based on the plurality of sets of projection images.

29-30. (canceled)

(canceled)

44-83. (canceled)

A cone-beam computer tomography imaging method comprising:

• acquiring a plurality of projection images of a volume using an imaging device, the imaging device including and X-rays source and an imager, each of the plurality of projection images acquired while the X-rays source is located at a respective one of a plurality of locations of the X-ray source, and a treatment couch is located at a respective one of a plurality of locations of the treatment couch along a first and a second axis, the first axis being orthogonal to the second axis;
• and
• generating a three-dimensional image of the volume based on the plurality of projection images.