首页>
外国专利>
MOBILE RADIOGRAPHY CALIBRATION FOR TOMOSYNTHESIS USING EPIPOLAR GEOMETRY
MOBILE RADIOGRAPHY CALIBRATION FOR TOMOSYNTHESIS USING EPIPOLAR GEOMETRY
展开▼
机译:利用表观几何学进行层析成像的移动射线照相校正
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for geometric calibration of a mobile radiography apparatus, executed at least in part by a computer, acquires a series of tomosynthesis projection images of a patient positioned between an x-ray source of the mobile radiography apparatus and a detector that is positionally uncoupled from the x-ray source. A vector field is generated having a first set of vectors indicative of feature movement between a first acquired projection image and a second acquired projection image. The generated vector field is associated with an epipolar geometry according to an optimization of an energy relationship between an epipolar model and the generated vector field values. The mobile radiography apparatus is calibrated according to the associated model epipolar geometry. At least a portion of the tomosynthesis image is reconstructed and displayed.
展开▼