I think an interesting possible application of this is that a lot of applications of video to 3D reconstruction, such as SLAM and photogrammetry, require good c

I think an interesting possible application of this is that a lot of applications of video to 3D reconstruction, such as SLAM and photogrammetry, require good camera intrinsics as calibration input. Getting this information automatically seems to be difficult, so lens calibration is an important step. This work suggests to me that calibration information could either be recovered directly from images, or the correct entry could be automatically looked up in some large shared database, which would really simplify things for certain applications.