The authors identify a trade-off between equirectangular projection (ERP) and cubemaps: ERP distorts polar regions and departs from pretrained image distributions, while cubemaps preserve perspective but suffer from inconsistent faces and visible seams.
CubeAtlas representation yields seamless, distortion-free 360° panoramas from pre-trained models
Unfolding cubemap faces into a single compact grid with orientation-aligned polar halves and layout-aware sparse attention enables a diffusion transformer to generate globally coherent panoramas without architectural changes.
Chinese Tech
Xuhui Zuo · Chenjie Cao · Tengfei Wang · Junta Wu · Yisu Zhang · Chunchao Guo
Tencent
Research Digest··3 min read
The authors propose Squaring-the-Sphere, a framework for 360° panorama generation using CubeAtlas, a new representation that arranges cubemap faces into a single canvas.
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