Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
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A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Toddler wearing head-mounted camera, camcorder, and battery pack. (B) Sample frames obtained from toddler head camera (C) Sample object image size coding; percentages reflect the percentage of toddlers’ field of view taken up by the bounding box drawn around each object.
