- 著者
- Endo Yuki Kanamori Yoshihiro Fukui Yukio Mitani Jun
- 出版者
- Blackwell Publishing
- 雑誌
- Computer graphics forum (ISSN:01677055)
- 巻号頁・発行日
- vol.31, no.4, pp.1435-1443, 2012-06
- 被引用文献数
- 1
This paper introduces a framework that can extract an alpha matte from a single image with Fresnel reflection, and that can composite other objects with the image such that plausible reflections are included. Our method handles reflections in a plane with small undulations, for example, a water surface with waves or a glossy tabletop. During the matting stage, our method first estimates the transmission color, which is assumed to be uniform, and then calculates a reflection image and alpha matte based on user markups. However, accurate extraction of the matte becomes challenging when a plane has small undulations because these create perturbations in the matte. We therefore propose a filter that can refine the matte effectively. In the compositing stage, the reflection of a composited object is synthesized by ray tracing in real time. We demonstrate the effectiveness of our method through comparisons with ground-truth data and results using natural images as inputs.
- 著者
- Iizuka Satoshi Kanamori Yoshihiro Mitani Jun Fukui Yukio
- 出版者
- IEEE Computer Society
- 雑誌
- IEEE computer graphics and applications (ISSN:02721716)
- 巻号頁・発行日
- vol.32, no.6, pp.18-25, 2012-11
- 被引用文献数
- 9
A proposed system lets users create a 3D scene easily and quickly from a single image. The scene model consists of background and foreground objects whose coordinates the system calculates on the basis of a boundary between the ground plane and a wall plane. The system quickly extracts foreground objects by combining image segmentation and graph-cut-based optimization. It enables efficient modeling of foreground objects, easy creation of their textures, and rapid construction of scene models that are simple but produce sufficient 3D effects.