BIDIRECTIONAL BLOOD VESSEL SEGMENTATION

摘要

Embodiments relate to segmenting blood vessels in angiogram images. An aspect includes a method that includes receiving and preprocessing at least one angiogram frame and preprocessing. In one embodiment, at least one angiogram frame is received and preprocessed. Bottom-up filtering of the preprocessed angiogram frame and top-down segmentation of the preprocessed angiogram frame are performed based on the results of the bottom-up filtering. The bottom-up filtering and the top-down segmentation are iteratively repeated until the difference between results of the top-down segmentation from consecutive iterations is equal to or below a threshold value. Based on determining that a difference between results of the top-down segmentation from consecutive iterations is below or equal to the threshold value, the results of the top-down segmentation are outputted.

主权项

1. A method for segmenting blood vessels comprising:
receiving at least one angiogram frame; preprocessing the angiogram frame; performing bottom-up filtering of the preprocessed angiogram frame; performing top-down segmentation of the preprocessed angiogram frame based on the results of the bottom-up filtering; iteratively repeating the bottom-up filtering and the top-down segmentation until the difference between results of the top-down segmentation from consecutive iterations is equal to or below a threshold value; outputting the results of the top-down segmentation based on a determination that a difference between results of the top-down segmentation from consecutive iterations is below or equal to the threshold value.