I am one of the co-founders of RTI Dome, a company which sells a device that enable researchers to capture precise images of fossils, brush strokes, or artefacts.
Reflectance Transformation Imaging (RTI), also known as Polynomial Texture Mapping (PTM), is a technique allowing the production of an interactive photograph.
Whereas a photograph represents a single possible illumination of a subject, an RTI will render the subject under any illumination.
My role in the company is to design, prototype and manufacture our reflectance transformation imaging devices.
More info at https://www.rti-dome.com/