Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Results of the carotid artery boundary detection. A. Results of directional gradients. B. Results of using Otsu's thresholding technique. C. The ROI (Re) is transformed to the polar representation (Rp)for dynamic programming. D. Results of circle model guided dynamic programming. (α = 0.3, σ = 2, and dr = 1).
