Correcting Face Distortion in Wide-Angle Videos
Correcting Face Distortion in Wide-Angle Videos
Correcting Face Distortion in Wide-Angle Videos
arXiv paper abstract https://arxiv.org/abs/2111.09950
arXiv PDF paper https://arxiv.org/pdf/2111.09950.pdf
Project page https://www.wslai.net/publications/video_face_correction
Video blogs and selfies are … are often captured by wide-angle cameras to show human subjects and expanded background.
… due to perspective projection, faces near corners and edges exhibit apparent distortions that stretch and squish the facial features
… present a video warping algorithm to correct these distortions … apply stereographic projection locally on the facial regions.
… formulate a mesh warp problem using spatial-temporal energy minimization and … using a line-preservation term to maintain the straight edges in the background.
To address temporal coherency, we constrain the temporal smoothness on the warping meshes and facial trajectories through the latent variables.
… 83.9% of users prefer our algorithm over other alternatives based on perspective projection.
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