Patent ID: 7477722

Claim:
An imaging system, comprising: a first pair of x-ray sources at a first separation to generate a first x-ray beam and a second x-ray beam in an imaging plane, the first x-ray beam and the second x-ray beam disposed to intersect at a first angle at a first imaging center; a second pair of x-ray sources at a second separation to generate a third x-ray beam and a fourth x-ray beam in the imaging plane, the third x-ray beam and the fourth x-ray beam disposed to intersect at a second angle at a second imaging center; and a pair of x-ray detectors at a third separation, comprising a first x-ray detector and a second x-ray detector, the first x-ray detector to detect the first x-ray beam and the third x-ray beam, the second x-ray detector to detect the second x-ray beam and the fourth x-ray beam.