摘要:
A method of disentangling sample properties in a scanned sample requires a calibration sample in which two sample properties are variable. The calibration sample is scanned, and two measured variables are recorded during the scan. The two sample properties are measured quantitatively by an independent means. Using the data from the calibration sample, conversion functions are mathematically determined, in order to convert the two measured variables into the two sample properties. A sample, for which the two properties are unknown, is scanned, and the two measured variables are recorded. Using the conversion functions, the data from the scan is converted into the two sample properties of interest for the unknown sample. This method can be used with the first sample property being topography, so that effects due to the topography of the sample are eliminated from the computation of the second property of the unknown sample. This method can also be used with the probe in contact with the sample, so that topography is not one of the two sample properties.
摘要:
A system and method for detecting poor quality images in an optical tomography system includes an acquisition apparatus for acquiring a set of pseudo-projection images of an object having a center of mass, where each of the set of pseudo-projection images is acquired at a different angle of view. A reconstruction apparatus is coupled to receive the pseudo-projection images, for reconstruction of the pseudo-projection images into 3D reconstruction images. A quality apparatus is coupled to receive the 3D reconstruction images and operates to detect of selected features that characterize poor quality reconstructions.