Kazuo Seo

Scene synthesis by assembling striped areas of source images

We propose a practical image-based rendering method that utilizes the given source images as much as possible. In our method, a new view is synthesized by splitting it into stripes, and pasting to each of them the most suitable stripe among the pre-acquired source images. A well approximated view is synthesized without a precisely captured large set of source images even in a complex environment. We also describe a style of arranging viewpoints of source images and a method of data management in the memory, both of which give rise to the efficient usage of resources in practice. We can get fine results at any viewpoints in real time, so that a virtual environment with powerful walkthrough operations can be easily constructed.

Pace-the-Scene Movie: A video-based scene representation method for natural scenery

This paper proposes Pace-the-Scene Movie, which is a video-based scene reproduction method for natural scenery. To reproduce natural scenery, it was a problem to express the motion within the scenery and the users walk-through operation at the same time. The new method solves this problem. Its features include (1) replaying the source movie in order to represent the natural motion in the scenery, (2) correcting frames whenever required to realize walk-through, and (3) skipping sequences appropriately. Errors in the presented images were also investigated, and the conditions for skipping sequences were deduced from the results. Further, a guideline for using multiple video streams is proposed. This method easily realizes reproduction of natural scenery with motion.