Detecting three-dimensional rotation of an ellipsoid from its orthographic projections
We present a method for the detection and quantification of the three-dimensional (3D) rotation of an ellipsoid from its orthographic projections. This is done by analyzing the orientation angle and the semiaxis length of the projections. This method can be used in cardiac tomography to detect and quantify patient motion during the acquisition.
tomography ellipse ellipsoid rotation ellipsoid projection motion detection