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Category: RTI

DIY RTI

DIY RTI

This last year, my colleagues and I at the University of Minnesota have started experimenting a lot more with reflectance transformation imaging, aka RTI. What is RTI exactly? Like photogrammetry, it works using many digital photos of a single object. That’s about where the similarities end however. When capturing photos for RTI, the camera and object remain stable. The scene is lit from one source, and the position of this source is changed from photo to photo. Software, such as RTIBuilder, is…

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