xyHt in print August 2014 Archives
From Traditional Photogrammetry to UAS
Photogrammetry has changed substantially in the past three decades. When Jeff Yates began in the business 32 years ago, he used a projection system known as a Kelsh two-bucket plotter. “That was four generations ago of photogrammetric systems hardware,” he recalls. “From there, we went to the analog stereo plotter. That was the second big […]
The Lot Corner
A large survey-engineering firm had developed a subdivision, bounded by a section line on the north side and a 1950 subdivision and 1/16 line on the east side. By doing so they had exposed a five-foot overlap between the section line as run with GPS and the 1950 subdivision. They sought advice from the county […]