Patent ID: 6775399
Filing Date: 2004-08-10
Classification: G06T

Abstract:
A region of interest (ROI) segmentation system, comprising:A. at least one computer platform, having a processor and a memory associated therewith; B. at least one digital image stored in said memory, including at least one ROI and a set of direct exposure (DE) regions and a set of collimated regions; C. a ROI segmentation code, executable on said platform, said ROI segmentation code including: a) a collimation module, configured to detect substantially all collimated regions in said digital image and generate corresponding collimated region data; b) a DE module, configured to detect substantially all DE regions in said digital image and generate corresponding DE region data, wherein said DE module includes: 1) a pre-processor module, configured to digitally sample said digital image to produce a sampled image, to smooth said sampled image with a set of gray-scaled filters, and to scale said sampled image as a function of a pixel intensity range to produce a subset of said DE region data as a function thereof; and 2) a processor module, configured to parse said scaled image into sub-regions, to generate a local histogram associated with each sub-region, and to produce a subset of said DE region data as a function thereof; and c) a mask generation module, configured to generate, as a function of said collimated region data and said DE region data, a mask having a first-region pixel value associated with said collimated regions and at least one second-region pixel value associated with said DE regions, wherein said mask is configured to be combinable with said digital image to produce a ROI segmented image.