Abstract: This disclosure relates to representing an interior of a volume, such as but not limited to, a lumen. Examples of lumens may comprise a colon or bronchus. An input port receives the captured image data of the interior of the volume. The processor selects one of the multiple candidates such that the selected one of the multiple candidates corresponds to the captured image data. Each candidate is associated with simulated image data of the interior of the volume. The processor stores an association of the selected candidate with the captured image data to represent the interior of the volume. Aspects of the disclosure include computer implemented methods, computer systems and software.

Abstract: This disclosure relates to representing an interior of a volume, such as but not limited to, a lumen. Examples of lumens may comprise a colon or bronchus. An input port receives the captured image data of the interior of the volume. The processor selects one of the multiple candidates such that the selected one of the multiple candidates corresponds to the captured image data. Each candidate is associated with simulated image data of the interior of the volume. The processor stores an association of the selected candidate with the captured image data to represent the interior of the volume. Aspects of the disclosure include computer implemented methods, computer systems and software.

Abstract: A method of determining the degree of uptake of a PET maker in an individual candidate PET scan, the method including the steps of: (a) calculating a series of representative matched controlled PET and MRI templates for a series of controlled sample scans of individuals; (b) computing a series of brain surfaces from the matched templates; (c) aligning the individual candidate PET scan with the candidate templates; (d) aligning the candidate PET images with the series of brain surfaces; (e) selecting a predetermined (M) best candidate templates for each surface location based on a similarity measure between the candidate PET values and the corresponding controlled PET scans; (f) computing M weights for each surface location, utilizing a corresponding MRI tissue map; (g) utilizing the M weights to combine a corresponding M template tissue indicators from corresponding MRI templates into an average brain surface indicator.

Abstract: A method of determining the degree of uptake of a PET maker in an individual candidate PET scan, the method including the steps of: (a) calculating a series of representative matched controlled PET and MRI templates for a series of controlled sample scans of individuals; (b) computing a series of brain surfaces from the matched templates; (c) aligning the individual candidate PET scan with the candidate templates; (d) aligning the candidate PET images with the series of brain surfaces; (e) selecting a predetermined (M) best candidate templates for each surface location based on a similarity measure between the candidate PET values and the corresponding controlled PET scans; (f) computing M weights for each surface location, utilizing a corresponding MRI tissue map; (g) utilizing the M weights to combine a corresponding M template tissue indicators from corresponding MRI templates into an average brain surface indicator.

Abstract: Systems and methods associated with a constant variance filter are described. One system embodiment includes a memory to store a spatially dependent filtered data set having a first degree of homogeneity. The system embodiment may also include a filter logic to produce a data set having a second degree of homogeneity by filtering the spatially dependent filtered data set. The second degree of homogeneity may be greater than the first degree of homogeneity and may indicate spatial independence.

Abstract: Systems and methods associated with a constant variance filter are described. One system embodiment includes a memory to store a spatially dependent filtered data set having a first degree of homogeneity. The system embodiment may also include a filter logic to produce a data set having a second degree of homogeneity by filtering the spatially dependent filtered data set. The second degree of homogeneity may be greater than the first degree of homogeneity and may indicate spatial independence.

Abstract: Process for detecting defects during continuous casting between rolls where, during casting, a signal depending on the rolls separating force (RSF) is measured, the signal being separated into various harmonic components, the result of the comparison of the harmonic components thus obtained with reference harmonics being representative of a defective status of the rolls, this defective status of the rolls enabling various rules to be defined for the execution of the process.

Abstract: Control process for twin-roll continuous casting, in which, during casting, the roll separation force (RSF) is measured and the position of the bearings of at least one of the rolls is varied in order to increase or decrease the center-to-center spacing of the rolls, with a view to keeping the force substantially constant, a band (.DELTA.RSF) of force values bracketing a desired nominal force (RSF.sub.0) is predetermined and the position of the bearings is varied more sharply when the value of the measured force lies outside the band than when it lies within the band. Application especially to the twin-roll continuous casting of thin steel strip.