Figure 6.
Principal of Distance Estimation. (a) Is geometric relation between smartphone camera and control points on static object; (b) is interior geometric relation of smartphone camera.
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.