Surface inspection system and method

A system for inspecting a surface, the system comprising:

• a mobile computing device comprising:
• a processor;
• an optical assembly in electronic communication with the processor;
• a human-machine interface in communication with the processor, the human-machine interface comprising a display device and an input device;
• and
• a memory device in electronic communication with the processor, the memory device storing instructions that when executed cause the mobile computing device to execute operations of:
• generating, via an optical assembly, a series of images representing the surface, the series of images defining a first image data set;
• generating, via the processor, a sparse 3D reconstruction of the surface based on a recognition of sparse features within the first image data set;
• after generating the sparse 3D reconstruction, receiving, via the input device, a selection of a region of interest of the surface that includes a surface feature;
• defining, with the processor, a second image data set, the second image data set being a subset of the first image data set and having the selected region of interest;
• after receiving the selection of the region of interests, generating, with the processor, a dense 3D reconstruction of the region of interest and that includes the surface feature, the dense 3D reconstruction based on the second image data set;
• generating, on the display device, a rendering of the dense 3D reconstruction;
• and
• determining, with the processor a measurement data within the region of interest, wherein the region of interest of the surface includes the surface feature, and wherein the measurement data includes an elevation of the surface feature.