Correcting axial tilt based on object positions in axial slices of three dimensional image

A computer comprising a processor and a memory readable by said processor, said memory storing thereon computer executable code for reorienting a three-dimensional (3D) scan image of an object, said object having a generally flat surface, said image being constructed from image data obtained during rotation of said object about a rotation axis, said rotation axis intersecting the plane of said flat surface at an angle, said code when executed by said processor causes said computer to:

• obtain axial slices of said scan image, each representing a slice of said object that is perpendicular to said rotation axis and comprising a line representing said flat surface of said object;
• shift said axial slices to align lines representing said flat surface in different axial slices, thus forming a reoriented 3D image;
• and
• present a representation of said reoriented 3D image to a user.

A computer-implemented process of reorienting a three-dimensional (3D) scan image of an object, said object having a generally flat surface, said image being constructed from image data obtained during rotation of said object about a rotation axis, said rotation axis intersecting the plane of said flat surface at an angle, said process comprising:

• obtaining axial slices of said scan image, each representing a slice of said object that is perpendicular to said rotation axis and comprising a line representing said flat surface of said object;
• determining said angle from positions of lines representing said flat surface in different axial slices;
• rotating said scan image by said angle to form a reoriented 3D image, thus aligning lines representing said flat surface in different axial slices in said reoriented 3D image;
• and
• presenting a representation of said reoriented 3D image to a user.

A computer comprising a processor and a memory readable by said processor, said memory storing thereon computer executable code for reorienting a three-dimensional (3D) scan image of an object, said object having a generally flat surface, said image being constructed from image data obtained during rotation of said object about a rotation axis, said rotation axis intersecting the plane of said flat surface at an angle, said code when executed by said processor causes said computer to:

• obtain axial slices of said scan image, each representing a slice of said object that is perpendicular to said rotation axis and comprising a line representing said flat surface of said object;
• determine said angle from positions of lines representing said flat surface in different axial slices;
• rotate said scan image by said angle to form a reoriented 3D image, thus aligning lines representing said flat surface in different axial slices in said reoriented 3D image;
• and
• present a representation of said reoriented 3D image to a user.