PhotoSat research breakthrough improves satellite surveying resolution

Small 3D Ground Features now Clearly Visible on Survey Grids

Left: Stereo WorldView satellite photo of a mine site access road and utility corridor. Right: 50cm PhotoSat survey grid. The new PhotoSat processing shows fine topographic

VANCOUVER, British Columbia – September 13, 2017 – PhotoSat, the world’s only engineering-quality satellite surveying service, has announced that an ongoing research program has produced a significant breakthrough in their satellite image processing, considerably enhancing the visibility of fine topographic details.

PhotoSat produces satellite surveys of mine sites and engineering projects around the world. The company’s geophysicists apply signal enhancement, noise attenuation, and image matching from seismic data processing to automatically produce high accuracy elevation grids from stereo satellite photos. While most of these surveys are accurate to better than 20cm in elevation, with the recent breakthrough in image processing, the horizontal resolution of small 3D ground features has been greatly improved. These small features, such as mine site haul road berms, are now clearly resolved on PhotoSat survey grids.

“The improved resolution of the PhotoSat survey grids will enable earthworks design engineers to use satellite surveying for more detailed designs and construction planning,” said Gerry Mitchell, PhotoSat President and Founder. “Construction and operations engineers will be able to use the PhotoSat surveys to monitor the construction of smaller structures and produce more precise as-built drawings and volume measurements.”

The use of satellite surveying can shorten project timelines, eliminate survey delays and provide more accurate surveys – particularly for areas which are dangerous to access on foot or by vehicle. Stereo satellite photos taken in one minute can survey hundreds of square kilometers, providing an instant snapshot of an entire mine site. PhotoSat has been continuously producing accuracy studies since 2007 in order to provide objective, quantifiable accuracy data for stereo satellite surveying and mapping. This recent improvement in the visibility of topographic details is PhotoSat’s latest development as the company continuously strives to improve the accuracy and resolution of satellite survey results.

WorldView satellite photo showing berms protecting the utility corridor which are approx. 60cm high, with 5m by 2m tops. Berms are clearly resolved as shown in the elevation profile over the tops of the berms.

About PhotoSat
PhotoSat has invented a new technology that generates the world’s most accurate satellite surveying. This engineering quality survey data shortens timelines and eliminates surveying delays in all phases of resource and engineering projects. PhotoSat has delivered over 750 highly accurate satellite surveying projects worldwide. We have published numerous PhotoSat surveying accuracy studies which are available on our website. For more information please visit

For more information, please contact:

Andrea Krupa, Marketing and Company Culture
(604) 681-9770
[email protected]