True volumetric slit-scanning (should it be called surface-scanning?). For historical context regarding traditional 2D slit-scanning checkout Golan Levin's wonderful flong.com/texts/lists/slit_scan/
Similar to traditional 2D slit-scanning, but instead of working with 2D images + time, this technique uses a 3D camera (i.e. Kinect), spatial + temporal data stored in a 4D Space-Time Continuum, and 3 dimensional temporal gradients (i.e. not just slit-scanning on the depth/rgb images, but surface-scanning on the animated 3D point cloud).
These demos were recorded on a low-spec macbook air. Bands & blockiness due to the low spatial resolution to help performance.