Feature-based light field morphing

We present a feature-based technique for morphing 3D objects represented by light fields. Our technique enables morphing of imagebased objects whose geometry and surface properties are too difficult to model with traditional vision and graphics techniques. Light field morphing is not based on 3D reconstruction; instead it relies on ray correspondence, i.e., the correspondence between rays of the source and target light fields. We address two main issues in light field morphing: feature specification and visibility changes. For feature specification, we develop an intuitive and easy-to-use user interface (UI). The key to this UI is feature polygons, which are intuitively specified as 3D polygons and are used as a control m for ray correspondence in the abstract 4D ray space. For handling visibility changes due to object shape changes, we introduce ray-space warping. Ray-space warping can fill arbitrarily large holes caused by object shape changes; these holes are usually too large to b...

• Type: Journal
• Year: 2002
• Where: TOG
• Authors: Zhunping Zhang, Lifeng Wang, Baining Guo, Heung-Yeung Shum
• Keywords: Light Field, Morphing, Ray Correspondence, TOG 2002