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AssigneeKoninklijke Philips Electronics N.V.
InventorsRaoul Florent, Lucille Goubet
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An image processing method for extracting a thread-like structure (GW) represented on the background in a digital noisy original image (IM1,IM0), comprising steps of acquisition (1) of the original image data of one End-Point (P0, Q0) of the threadlike structure and comprising steps of iterative Front Propagation stage (4) starting from the unique End-Point (P0Q0) end supplying an End-Front (F1, F2) yielding End-Front Points (41); constructin a set of Candidate Paths between the unique End-Point (P0, Q0) and said End-Front Points and selecting (42) one Best Candidate Path for representing the threadlike structure. Application: Medical Imaging; X-ray apparatus with image processing means and display means.
An image processing method for extracting a thread-like structure (GW) represented on the background in a digital noisy original image (IM1,IM0), comprising steps of acquisition (1) of the original image data including data of one End-Point (P0, Q0) of the threadlike structure and comprising steps of:
An image processing method as claimed in one of the preceding claims, wherein, preliminary to the iterative stage (4), a stage (2) of ridgeness calculation, forming a ridgeness data image (IM2), where ridge pixels show an intensity gradient that is maximum in a first determined direction in its neighborhood, and show a lower intensity gradient in a direction perpendicular to said first direction, so as the more an image structure is formed of pixels verifying this gradient property, the more the ridgeness measure of the image structure is high.
A system comprising a suitably programmed computer or a special purpose processor having circuit means, which are arranged to process image data according to the method as claimed in any one of the preceding Claims.
Dependencies are inferred from the claim text.