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.
Example annotated images (from left to right) for tip, base, body, and stem. Our annotation approach only requires sampling of pixels/points for the 4 main structural regions. Although most tips and bases have been annotated (see the left 2 panels), only a small portion of points for body or stems have been sampled and labelled (see the right 2 panels).
