The group also scanned the Bent Pyramid, named for the slope of the upper section of the structure, as the first in its year-long project.
Thermography uses infrared to map structures. The different techniques are then combined to render a 3-D reconstruction to study the ancient buildings.
The team has found chevron patterns made of stone that it said were not used as decoration, but possibly to seal voids in structure.
Chevrons were used to cover the king and queen chambers, to either protect a room or keep a roof from collapsing, Scan Pyramid reported.
Now researchers are trying to determine why so many chevrons were put in to protect a small area on a descending corridor
Scientists said they performed multiple tests to make sure it was not noise or "statistical fluctuation" and the results suggest that there is a void, or voids, behind the stonework.
The teams confirmed the void on the north face of the pyramid. Now they are trying to find the precise size and shape.
They are also examining the queen's Cchamber. The results are expected to be released early 2017, The Telegraph reported.
To read more on the discovery and the technology used, click here.