Lumen contour and external elastic membrane identification method based on intravascular ultrasonic image

• Main Authors: LI CHENGUANG, XU RENDE, WU YIZHE, SHEN LI, QIAN JUYING, GE JUNBO
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to a lumen contour and external elastic membrane identification method based on an intravascular ultrasonic image, and the method comprises the steps: obtaining the intravascular ultrasonic image, carrying out the preprocessing, carrying out the feature extraction, and generating a target frame for the extracted features; correcting the target frame belonging to the foreground in the target frames, inputting the corrected target frame into a mask template for semantic segmentation, and obtaining a lumen contour and an external elastic membrane recognition result; the correction process of the target frame comprises the following steps: acquiring the target frame and a corresponding feature map, and expanding the target frame and the feature map; performing feature extraction on the feature map by adopting the expanded target frame to obtain a new feature map; and for the new feature map, an attention mechanism is adopted to capture the relation between pixels, so that the coordinates of