Possibly graph searching or snake segmentation for the envelope. Optical character recognition of the scale information. Validation At least 10brachial ultrasound image sequences. Verification with gated and with ungated sequences as well. Validation against manually obtained data.
Goals Develop a methodology for longitudinal and cross-sectional IVUS segmentation.
Methods I, AI Usage of combined information from longitudinal and cross-sectional images to achieve reliable segmentation overall. In 10 IVUS sequences, validate against manually traced contours in selected longitudinal and cross-sectional images, at least 50 frames and 20 longitudinal images, randomly selected. Goals Develop a methodology for segmentation of lung lobes. In 5 volumetric lung data sets, calculate rms border positioning errors and volume errors.