Patent ID: 7176916
Filing Date: 2007-02-13
Classification: G06T

Abstract:
1. A system for identifying objects among unreconstructed data in image tomography comprising: a detector for collecting raw data in the form of photon counts organized as a set of images from a plurality of angular positions around a rotational axis; a viewer for viewing the set of images as pixel arrays having a first dimension substantially traverse to the rotational axis and a second dimension substantially parallel to the rotational axis for referencing locations at which the photon counts are collected; a selector tool for selecting one or more pixels appearing within an object in at least one of the images; a filling tool for identifying pixels that are contiguous to the selected one or more pixels and that satisfy a condition for being within the object; an interpolation tool for inferring which among the pixels in other of the images are also within the object; and a data structure for representing the object based on the pixels appearing within the object through the set of images as a collection of traces circumscribing the rotational axis at different linear positions along one of the first and second dimensions of the pixel arrays.