Abstract: The present invention extends to methods, systems, and computer program products for domain controller safety-features and cloning. Embodiments include cloning virtual domain controllers. Cloning permits virtual domain controllers to be rapidly deployed by copying/cloning the entire operating system state of an existing virtual domain controller. Other embodiments provide safety features protecting domain controllers running within virtual machines from introducing distributed corruption into a directory services data system. Protection is facilitated by detecting when a hypervisor or Virtual Machine Manager (“VMM”) uses features that cause a virtual machine to be rolled back in time outside of an operating system's awareness. In response to detecting a feature that causes rollback, safeties can be implemented to compensate for otherwise divergent state and prevent the introduction of duplicate unique identifiers.

Abstract: The present invention extends to methods, systems, and computer program products for domain controller safety-features and cloning. Embodiments include cloning virtual domain controllers. Cloning permits virtual domain controllers to be rapidly deployed by copying/cloning the entire operating system state of an existing virtual domain controller. Other embodiments provide safety features protecting domain controllers running within virtual machines from introducing distributed corruption into a directory services data system. Protection is facilitated by detecting when a hypervisor or Virtual Machine Manager (“VMM”) uses features that cause a virtual machine to be rolled back in time outside of an operating system's awareness. In response to detecting a feature that causes rollback, safeties can be implemented to compensate for otherwise divergent state and prevent the introduction of duplicate unique identifiers.

Abstract: A method for identifying non-body structures in digitized medical images including the steps of providing a digitized image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid, wherein said image includes a representation of a body and of non-body structures separate from said body, initializing a surface in said image on a side of said non-body structures opposite from said body, defining a plurality of forces acting on said surface, and displacing said surface through said non-body structures using said forces until said body is encountered.

Abstract: A method for identifying non-body structures in digitized medical images including the steps of providing a digitized image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid, wherein said image includes a representation of a body and of non-body structures separate from said body, initializing a surface in said image on a side of said non-body structures opposite from said body, defining a plurality of forces acting on said surface, and displacing said surface through said non-body structures using said forces until said body is encountered.