D Scanning for Hyperspectral Imaging of Drill Cores

Photonic Knowledge develops analytical tools for the mining industry that allow for the rapid on-site estimation of alteration assemblages visible in drill cores using hyperspectral imaging. Its patented hyperspectral imaging technology makes it possible to identify the spectral signatures of target minerals associated with specific mineralization.

Drill cores, however, are often irregular, broken, and marked by varied surface textures. These irregularities can cause artifacts in spectral results, which in turn lead to errors in the interpretation and statistical analysis of mineral content in the cores.

The objective of the project was to develop a robust 3D scanner capable of digitizing the three-dimensional geometry of drill cores. This would make it possible to properly process — or exclude from spectral analysis — the zones likely to cause artifacts during the study of spectral image content.

The mandate of Cégep André-Laurendeau was to design a robust, low-cost 3D scanner that meets the company’s technical requirements and can be easily installed and operated within the limited workspace available.