Terminology

The following terms are used throughout this documentation.
contributor
A Hivemapper account that contributes content to the global map via a dashcam
user
A Hivemapper account that uses the global map via one of the Map APIs.
location telemetry
GPS coordinates and timestamps for each trace. 
map tile
Square shaped tile that is 0.001 sq km. User facing API queries access and consume data at this size.
ground tile
Hex shaped tile that is 0.0000063 sq km in size. The ground tile is the atomic unit for contributions made via a dashcam.  Learn more about tiles in the Tile System section.
location accuracy
Determines the accuracy of coordinates for a given location. For example, if the coordinates provided are with 50cm of the exact location to which they refer, then it is accurate to say that the location accuracy is 50cm.
resolution
The smallest size an object can be represented in an image. For example, if an image has 30 cm per pixel (often referred to as 30cm resolution) that means each pixel represents 30 cm in the physical space. 5 cm resolution means each pixel represents a mere 5 cm of physical space so it will be much easier to see small objects.
georegistration
The process of finding and assigning real world geographic coordinates. For example, if somebody maps a 1 sq km area, how this section gets assigned accurate real world coordinates and combined with the rest of the global map is the process of georegistration.
Another way to think about georegistration is to think of the map as a puzzle where each new piece of content uploaded to Hivemapper forms one piece. The puzzle is only complete when each piece is in its proper place. 
titan
The mapping engine that transforms content into the global map.

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contributor

user

location telemetry

map tile

ground tile

location accuracy

resolution

georegistration

titan