Fig. 1.
Schematic layout of a retailer store and the selected surfaces for testing, 1-3) Payment Station, 4 & 5) Shopping Carts and Baskets, 6) Deli Counter, and 7) Refrigerated Food Section.
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.