Difference between LOAM Continuous and LOAM Velodyne

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I see multiple packages that recovered LOAM Continuous and Velodyne from the pre-Kaarta repositories. I would consider a velodyne sensor a continuously rotating sensor, so it's a little unclear to me the difference or specialization of the separate Velodyne package. I couldn't find any differences describing the differences.

The back-and-forth version is used for a rotating 2D hokuyo-like sensor configuration. There are references to the continuous version in the LOAM paper but nothing describing the Velodyne variant's differentiation.