Optical Flow Rendering

13 years 4 months ago

Download cg.postech.ac.kr

This paper proposes a new approach to image-based rendering that generates an image viewed from an arbitrary camera position and orientation by rendering optical ﬂows extracted from reference images. To derive valid optical ﬂows, we develop an analysis technique that improves the quality of stereo matching. Without using any special equipments such as range cameras, this technique constructs reliable optical ﬂows from a sequence of matching results between reference images. We also derive validity conditions of optical ﬂows and show that the obtained ﬂows satisfy those conditions. Since environment geometry is inferred from the optical ﬂows, we are able to generate more accurate images with this additional geometric information. Our approach makes it possible to combine an image rendered from optical ﬂows with an image generated by a conventional rendering technique through a simple Z-buffer algorithm.

Tae-Joon Park, Seungyong Lee, Sung Yong Shin

Real-time Traffic