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- Title
OptFlowCam: A 3D‐Image‐Flow‐Based Metric in Camera Space for Camera Paths in Scenes with Extreme Scale Variations.
- Authors
Piotrowski, Lisa; Motejat, Michael; Rössl, Christian; Theisel, Holger
- Abstract
Interpolation between camera positions is a standard problem in computer graphics and can be considered the foundation of camera path planning. As the basis for a new interpolation method, we introduce a new Riemannian metric in camera space, which measures the 3D image flow under a small movement of the camera. Building on this, we define a linear interpolation between two cameras as shortest geodesic in camera space, for which we provide a closed‐form solution after a mild simplification of the metric. Furthermore, we propose a geodesic Catmull‐Rom interpolant for keyframe camera animation. We compare our approach with several standard camera interpolation methods and obtain consistently better camera paths especially for cameras with extremely varying scales.
- Subjects
METRIC spaces; RIEMANNIAN metric; GEODESIC spaces; THREE-dimensional imaging; CAMERA movement; GEODESICS; CAMERAS; SEQUENCE spaces
- Publication
Computer Graphics Forum, 2024, Vol 43, Issue 2, p1
- ISSN
0167-7055
- Publication type
Article
- DOI
10.1111/cgf.15056