Methods, apparatus, and articles of manufacture to measure geographical features using an image of a geographical location

A method, comprising:

• dividing, with a processor, an image of a geographic area of interest into a plurality of geographical zones, the geographical zones being representative of different geographical areas having approximately equal physical areas;
• measuring, with the processor, a geographical feature represented in the image for corresponding ones of the plurality of geographical zones;
• storing descriptions for the geographical zones in a computer memory;
• storing values representative of the geographical feature of the geographical zones;
• sorting the geographical zones into bins based on a comparison of the values to ranges of values, the ranges of values corresponding to the bins;
• and
• determining a number of zones to be sampled in one of the bins based on the range of values corresponding to the one of the bins.

An apparatus, comprising:

• an image divider to divide an image of a geographic area of interest into a plurality of geographical zones;
• a zone analyzer to measure a geographical feature of a first one of the plurality of geographical zones based on a feature in the image, wherein the geographical feature is representative of a potential market within the geographical zone;
• a memory to store a description of the first geographical zone with a value representative of the geographical feature of the first geographical zone;
• and
• a sample stratifier to:
• sort the geographical zones into bins based on a comparison of the values to ranges of values, the ranges of values corresponding to the bins;
• and
• determine a number of zones to be sampled in one of the bins based on the range of values corresponding to the one of the bins.