Abstract: A method and system for managing a risk of medication dependence that determines a conservative estimate of the time when the patient will become dependent on a medication as a function of a medication log. The medication log includes dose information and time information for a plurality of administrations of the medication.

Abstract: A method of determining whether a patient has taken a dose of medication. The method includes including a first-pass tracer substance with at least one dose of the medication. The first-pass tracer substance is detectable in a body of the patient using a sensor. In addition, the first-pass tracer substance has a short half-life at the site of detection in the body. Further, processing circuitry determines that the patient has taken the dose of medication when the first-pass tracer substance is detected using the sensor at a time after a scheduled medication administration.

Abstract: In an exemplary embodiment, a computer-implemented method determines, using a processor, a relatively occluded set of viewcells connecting a current viewcell and a destination viewcell, the current viewcell containing the position of a friendly asset and the destination viewcell containing the position of an enemy asset, the relatively occluded set of viewcells including a set of viewcells connecting the current viewcell and the destination viewcell and also having a maximal number of viewcells occluded from the destination viewcell; and instructs, using the processor, the friendly asset to navigate a path comprising the relatively occluded set of viewcells.

Abstract: A method of visibility event navigation includes receiving, via processing circuitry of a client device, a first visibility event packet from a server, the first visibility event packet including information representing 3D surface elements of an environmental model that are occluded from a first viewcell and not occluded from a second viewcell, the first and second viewcells representing spatial regions of a specified navigational route within a real environment modeled by the environmental model. The method also includes acquiring, surface information representing the visible surfaces of the real environment at a sensor and determining, a position in the real environment by matching the surface information to the visibility event packet information. The method further includes transmitting, the position from the client device to the server and receiving a second visibility event packet from the server if the at least one position is within the specified navigational route.

Abstract: A method of pursuit path camera model navigation includes, providing, via processing circuitry of one server, a future viewpoint located at a first location and a current viewpoint located at a second location and calculating a first prefetch region including one or more viewcells and one or more visibility even packets, the first prefetch region corresponding to the first location of the future viewpoint and the second location of the current viewpoint. The method further includes receiving commands to modify the first location of the future viewpoint to a third location at a first velocity, calculating a navigational intent of the future viewpoint based on the commands, and calculating a second prefetch region including the viewcells and the visibility event packets by collapsing the calculated first prefetch region into the second prefetch region, the second prefetch region corresponding to a predicted pursuit path based on the calculated navigational intent.

Abstract: In an exemplary embodiment, a computer-implemented method determines a set of mesh polygons or fragments of the mesh polygons visible from a navigation cell. The method includes determining a composite view frustum containing predetermined view frusta and determining mesh polygons contained in the composite view frustum. The method includes determining at least one supporting polygon between the navigation cell and the contained mesh polygons. The method further includes constructing at least one wedge from the at least one supporting polygon, the at least one wedge extending away from the navigation cell beyond at least the contained mesh polygons. The method includes determining one or more intersections of the at least one wedge with the contained mesh polygons. The method also includes determining the set of the contained mesh polygons or fragments of the contained mesh polygons visible from the navigation cell using the determined one or more intersections.

Abstract: There is provided a method of predictive prefetching and transmitting from a server to a client device at least one partial visibility event packet and/or deferred visibility event packet including renderable graphics information occluded from a first viewcell and not occluded from a second viewcell, including otherwise renderable graphics information in a client view frustum not previously transmitted to the client device; determining an estimated maximal client view frustum; calculating a subset comprising renderable graphics information that is included in the estimated maximal client view frustum; determining whether the calculated subset has previously been transmitted to the client device by comparing the calculated subset to the stored renderable graphics information previously transmitted; and transmitting the at least one partial visibility event packet and/or deferred visibility event packet to the client device if said packet has not been previously transmitted to the client device.

Abstract: A system includes a server and a client computer device. The server determines a graphical object visible from a view region and determines one or more parameters defining the graphical object visible from the view region. The server further transmits the determined one or more parameters to a client computing device. The client computing device includes a processor to generate the graphical object using the determined one or more parameters received from the server. The client computing device further includes a display device to display the generated graphical object within a computer generated modeled environment.

Abstract: A computer-implemented method of image generation that makes efficient use of reprojective techniques to reduce the cost of image generation. The method employs a technique of primitive reprojection in which convex graphics primitives are the reprojected elements. The visibility of elements known to be visible in a previous frame is first determined by transformation and depth-comparison rasterization of these elements. Regions of the image that may contain newly visible elements are located by occlusion-exposure transitions in the depth buffer and from incremental view volume motion. In these regions a depth-prioritized, data-access method of visible surface determination, spatial-subdivision ray casting, is employed to identify newly visible primitives which are added to the list of previously visible primitives for rasterization. The method employs a system of classifying objects based on their dynamic occlusive properties to increase the accuracy, efficiency and versatility of the reprojective approach.