Figure 7From: A 3D Freehand Ultrasound System for Multi-view Reconstructions from Sparse 2D Scanning Planes Comparison of Paragios' method and the new hybrid GVF GAC model. Prior to segmentation, the images were smoothed with a Gaussian window with σ G = 3 (a) A apical long-axis image, (b) Curve evolution using Paragios' method, (c) Result of Paragios' method (d) Curve evolution using the new hybrid method, and (e) Result of the new method.Back to article page