Patent ID: 8923631
Filing Date: 2014-12-30
Classification: A61B,G06K,G16H

Abstract:
1. A method of identifying components within a vascular object from a signal, the method comprising: transmitting a signal within a selected region of the vascular object and collecting a backscatter signal reflected from the vascular object; reconstructing an image of the selected region from the backscatter signal; preparing a histology image of the selected region of the vascular object, the histology image distinguishing different components of the vascular object; selecting a region of interest from the histology image, the region of interest representing one component from the different components of the vascular object and being at a coordinate location on the histology image; mapping the coordinate location to a location on the image corresponding to the coordinate location; translating the location on the image to a signal portion in the backscatter signal corresponding to the location, the signal portion representing a signal signature of the one component of the vascular object; and correlating the signal signature to the one component using a classification tree scheme using a graphic processing unit (GPU), wherein using the classification tree scheme includes performing data decomposition of a sample of the signal portion by evaluating in parallel all nodes in a tree associated with the sample of the signal portion and thereafter synchronously reducing a path through the tree, the path being defined by the evaluation of all nodes in the tree, wherein evaluating all nodes in the tree includes implementing branchless tree traversal, wherein reducing the path through the tree includes providing a static path for each of a subset of all nodes in the tree, and wherein reducing the path through the tree includes reducing the path a plurality of times per computational loop, wherein the correlating further comprises generating a processor-node map that correlates a subdivision of the GPU with an index of a node of the tree associated with the sample of the signal portion.