HEAL-SWIN: A Vision Transformer On The Sphere

arXiv:2307.07313v2 Announce Type: replace-cross
Abstract: High-resolution wide-angle fisheye images are becoming more and more important for robotics applications such as autonomous driving. However, using ordinary convolutional neural networks or vision transformers on this data is problematic due to projection and distortion losses introduced when projecting to a rectangular grid on the plane. We introduce the HEAL-SWIN transformer, which combines the highly uniform Hierarchical Equal Area iso-Latitude Pixelation (HEALPix) grid used in astrophysics and cosmology with the Hierarchical Shifted-Window (SWIN) transformer …

arxiv cs.cv cs.lg sphere swin transformer type vision