It's something in between the two possibilities you describe. Each human pixel in the image is labeled with an index and two coordinates: x, y (u and v are the

It's something in between the two possibilities you describe. Each human pixel in the image is labeled with an index and two coordinates: x, y (u and v are the traditional names, but think of 2D x, y coordinates) The index specifies which patch that pixel is on, and the x, y coordinates specify where in the patch the pixel is on. This is for a pre-specified set of patches that cover a human mesh. See https://github.com/facebookresearch/DensePose/blob/master/notebooks/DensePose-COCO-Visualize.ipynb https://github.com/facebookresearch/DensePose/blob/master/no... for more detail. So, no, it does not extrapolate the full mesh, but also for all human pixels, you are getting 3D information.