Measurement data is provided as raw data. Depending on the nature of the firearm identification approach,
users may have to apply data processing operations such as data trimming, outlier rejection, edge detection,
leveling, form removal, and filtering.
Reflectance microscopy images are provided in lossless .PNG format. 3D topography data are provided in .X3P format (XML 3D surface Profile):
All studies will have a spreadsheet detailing the meta data. A description of each meta data field can be found in the Meta Data Specification. If you are planning to send test fires or measurement data for inclusion into the database, please use this spreadsheet to enter the meta data. (NBTRD Study Meta Data.xls)
The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.