Abstract: Apparatus and methods for controlling unmanned systems (UMSs), such as unmanned aircraft, are provided. A UMS can include core systems, auxiliary systems, a payload, a physical computer, a network, and a power system. The network can enable the physical computer to communicate with the auxiliary systems using a second communications tier and with the payload using a third communications tier. The network and the physical computer can logically separate the second and third communications tiers. The power system can provide a first, second, and third power domains respectively for the core systems, the auxiliary systems, and for the payload. The power system can include circuitry that inhibits an overcurrent fault in the third power domain from causing an electrical fault in the first and second power domains and that inhibits an overcurrent fault in the second power domain from causing an electrical fault in the first power domain.

Abstract: A method, system, and computer program product for correcting the contrast levels of a medical image of a vascular system is described. One of the methods includes identifying a global reference contrast level. The method includes for each image location which represents a location within the vascular system, determining a corrected contrast level by multiplying the original contrast level of that location by the ratio of the global reference contrast level divided by a local reference contrast level.

Abstract: Apparatus and methods for controlling unmanned systems (UMSs), such as unmanned aircraft, are provided. A UMS can include core systems, auxiliary systems, a payload, a physical computer, a network, and a power system. The network can enable the physical computer to communicate with the auxiliary systems using a second communications tier and with the payload using a third communications tier. The network and the physical computer can logically separate the second and third communications tiers. The power system can provide a first, second, and third power domains respectively for the core systems, the auxiliary systems, and for the payload. The power system can include circuitry that inhibits an overcurrent fault in the third power domain from causing an electrical fault in the first and second power domains and that inhibits an overcurrent fault in the second power domain from causing an electrical fault in the first power domain.

Abstract: A method, system, and computer program product for correcting the contrast levels of a medical image of a vascular system is described. One of the methods includes identifying a global reference contrast level. The method includes for each image location which represents a location within the vascular system, determining a corrected contrast level by multiplying the original contrast level of that location by the ratio of the global reference contrast level divided by a local reference contrast level.

Abstract: A method, system, and computer program product for correcting the contrast levels of a medical image of a vascular system is described. One of the methods includes identifying a global reference contrast level. The method includes for each image location which represents a location within the vascular system, determining a corrected contrast level by multiplying the original contrast level of that location by the ratio of the global reference contrast level divided by a local reference contrast level.

Abstract: A method, system, and computer program product for correcting the contrast levels of a medical image of a vascular system is described. One of the methods includes identifying a global reference contrast level. The method includes for each image location which represents a location within the vascular system, determining a corrected contrast level by multiplying the original contrast level of that location by the ratio of the global reference contrast level divided by a local reference contrast level.