Method and system for using local attention in the detection of

Details Method and system for using local attention in the detection of Method and system for using local attention in the detection of

1997-07-28

2000-01-11

Chang, Jon

Image analysis

Applications

Biomedical applications

382156, 382225, 378 37, G06K 900, G06K 962, A61B 604

Patent

active

060144521

ABSTRACT:
A method an system for using a local attention threshold to aid in the detection of clustered abnormalities in digitized medical images is disclosed. The local attention threshold is applied to locate spots within a predetermined distance from previously identified spots. More specifically, seed pixels are identified by applying a first seed threshold function to the output of a shift-invariant neural network and adaptive threshold. The seed pixels are then segmented into spots by applying a segmentation threshold function to each seed pixel. False-positive spots are removed using various techniques. Additional seed pixels are then identified by applying a local attention threshold to pixels within a predetermined distance to previously identified spots. The local attention threshold disclosed is less selective for pixels which are closer to the nearest spot than for pixels which are further from the nearest spot. The new seed pixels are then segmented into spots, and potential abnormalities are identified in the medical image based in part on the closeness of the identified spots.

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