Patent ID: 11879732
Assignee: IKEGPS GROUP LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of photogrammetrically measuring a structure, the method comprising:
acquiring an azimuth reading and a tilt reading at a first location;
acquiring a first digital image of the structure from the first location;
using a distance measuring device to measure a distance from the first location to a first point on the structure;
acquiring an azimuth reading and a tilt reading at a second location;
acquiring a second digital image of the structure from the second location;
using a distance measuring device to measure a distance from the second location to a second point on the structure;
establishing a scale using at least one of:
the first digital image and the distance measured from the first location to the first point on the structure; and
the second digital image and the distance measured from the second location to the second point on the structure;

determining the distance between the first point on the structure and the second point on the structure using the established scale; and
establishing a baseline between the first location and the second location to derive an epipolar model of the structure using:
the determined distance between the first point on the structure and the second point on the structure,
the distance measured from the first location to the first point on the structure,
the azimuth reading and tilt reading acquired at the first location,
the distance measured from the second location to the second point on the structure, and
the azimuth reading and tilt reading acquired at the second location.