摘要:
Apparatus and methods for detector scatter recovery for positron emission tomography systems are provided. One method includes identifying detected gamma events in different detector units of a nuclear medicine (NM) imaging detector and determining whether the detected gamma events occurred within a predetermined time period and have a summed energy of at least a predetermined level to define gamma events for reconstitution. The method further includes reconstituting the defined gamma events into single valid gamma events.
摘要:
A method for compressing imaging data includes acquiring a stream of imaging data, and dividing the stream of imaging data into a plurality of interstices, each interstice including a plurality of detected events. The also includes classifying the detected events within each interstice based on a probability of occurrence of the detected event, and reordering the detected events within each interstice based on the probability of occurrence to compress the image data. The method further includes generating a ring pair identification number for each detected event in the plurality of interstices.
摘要:
A method of imaging an object using a medical imaging system is provided. The imaging method acquires a stream of sinogram data. Changes in the stream of sinogram data corresponding to movement of the object are detected. The method selects portions of the stream of sinogram data. An image of the object based on the selected portions of the sinogram data is generated.
摘要:
A method for compressing imaging data includes acquiring a stream of imaging data, and dividing the stream of imaging data into a plurality of interstices, each interstice including a plurality of detected events. The also includes classifying the detected events within each interstice based on a probability of occurrence of the detected event, and reordering the detected events within each interstice based on the probability of occurrence to compress the image data. The method further includes generating a ring pair identification number for each detected event in the plurality of interstices.
摘要:
Apparatus and methods for detector scatter recovery for positron emission tomography systems are provided. One method includes identifying detected gamma events in different detector units of a nuclear medicine (NM) imaging detector and determining whether the detected gamma events occurred within a predetermined time period and have a summed energy of at least a predetermined level to define gamma events for reconstitution. The method further includes reconstituting the defined gamma events into single valid gamma events.
摘要:
An apparatus for making differently configured vehicle headliner/overhead systems as desired includes a plurality of stations for assembly operations in which components are attached to a preshaped headliner/overhead system core, parts nests for the components, presses for holding the headliner/overhead system core between a loaded parts nest and the presses, sensors for determining that the appropriate components have been loaded in the parts nests and that the core has been correctly positioned at an assembly station, an applicator for attaching the components to the core, a reader for reading indicia from the core indicating required assembly operations for the core, and a controller for effecting the appropriate assembly operations conforming with the information read by the reader.
摘要:
A method for reducing a need for physical memory includes compressing a sub-region of an intermediate histogram to obtain a compressed result, and storing the compressed result in a physical or virtual file.
摘要:
A method for reducing a need for physical memory includes compressing a sub-region of an intermediate histogram to obtain a compressed result, and storing the compressed result in a physical or virtual file.