Better image stitching by using depth information
Better image stitching by using depth information
Natural Image Stitching Using Depth Maps
arXiv paper abstract https://arxiv.org/abs/2202.06276v1
arXiv PDF paper https://arxiv.org/pdf/2202.06276v1.pdf
Natural image stitching (NIS) aims to create one natural-looking mosaic from two overlapping images that capture a same 3D scene from different viewing positions.
Challenges ... arise when the scene is non-planar and the camera baseline is wide, since parallax becomes not negligible
... propose a novel NIS method using depth maps, which generates natural-looking mosaics against parallax in both overlapping and non-overlapping regions.
Firstly, ... estimate a pixel-to-pixel transformation based on feature matches and their depth values.
Then, ... draw a triangulation of the target image and estimate multiple local homographies, one per triangle, ... Finally, the warping image is composited by the backward mapping of piece-wise homographies.
... method not only provides accurate alignment in the overlapping regions, but also virtual naturalness in the non-overlapping region.
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