Sony Group Corporation
PHOTO-VIDEO BASED SPATIAL-TEMPORAL VOLUMETRIC CAPTURE SYSTEM FOR DYNAMIC 4D HUMAN FACE AND BODY DIGITIZATION

Abstract:

The photo-video based spatial-temporal volumetric capture system more efficiently, produces high frame rate and high resolution 4D dynamic human videos, without a need for 2 separate 3D and 4D scanner systems, by combining a set of high frame rate machine vision video cameras with a set of high resolution photography cameras. It reduces a need for manual CG works, by temporally up-sampling shape and texture resolution of 4D scanned video data from a temporally sparse set of higher resolution 3D scanned keyframes that are reconstructed both by using machine vision cameras and photography cameras. Unlike typical performance capture system that uses single static template model at initialization (e.g. A or pose), the photo-video based spatial-temporal volumetric capture system stores multiple keyframes of high resolution 3D template models for robust and dynamic shape and texture refinement of 4D scanned video sequence. For shape up-sampling, the system can apply mesh-tracking based temporal shape super resolution. For texture up-sampling, the system can apply machine learning based temporal texture super resolution.