SAN FRANCISCO — Orbital Insight, a Silicon Valley geospatial analytics company, announced the purchase Sept. 18 of FeatureX, a Boston-based artificial intelligence firm specializing in computer vision for satellite imagery. The terms of the purchase were not disclosed.

It was the first acquisition made by Orbital Insight, a firm that has raised $78.7 million to date, including $50 million in a Series C funding round completed in May 2017.

FeatureX founder Gil Syswerda will join Orbital Insight as its technology research vice president, working in the company’s Boston office. FeatureX specializes in applying computer vision to satellite imagery to detect objects, enhance images and facilitate deep learning.