A Novel Panoramic Representation for Dynamic Scene
Hua Li · Chinese Journal of Computers · 2002
This paper presents a novel system to combine image mosaics with video texture. The system first composes a sequence of images into a final mosaic. A dominant motion estimation algorithm is used to register images, and outlier mask is detected to avoid bias. After registration, the images are warped and composed into a complete mosaic. To avoid producing blurred results by moving objects, authors employ a quad tree based construction algorithm that segments the overlapping section into small regions and samples each pixel in these regions from a single source image. Then, some periodic/random moving objects in scene are captured into video clips, and the system converts these video clips into video texture. Background Modeling and a feature based metamorphosing technology are used to improve the quality of video texture generated. At last, video texture is registered with image mosaics and both are combined into a compact representation. The system infuses image mosaics with dynamic qualities, while keeping the advantages of providing full view of scene (360 degree). For example, imagine a scene with a flag. Not only the system can be used to construct a panoramic image mosaic to look around, but also find the flag in the mosaic is flapping in breeze.