Name
Abstract | ||
|---|---|---|
A concept named Photometric Image-Based Rendering (PIBR) is introduced for a seamless augmented reality. The PIBR is defined as Image-Based Rendering which covers appearance changes caused by the lighting condition changes, while Geometric Image-Based Rendering (GIBR) is defined as Image-Based Rendering which covers appearance changes caused by the view point changes. The PIBR can be applied to image synthesis to keep photometric consistency between virtual objects and real scenes in an arbitrary lighting condition. We analyze the conventional IBR algorithms, and formalize the PIBR in the whole IBR framework. A specific algorithm is also presented for realizing the PIBR. The photometric linearization makes a controllable framework for the PIBR, which consists of four processes; (1) separation of environmental illumination effects, (2) estimation of lighting directions, (3) separation of specular reflections and cast-shadows, and (4) linearization of self-shadows. After the photometric linearization of input images, we can synthesize any realistic images which include not only diffuse reflections but also self-shadows, cast-shadows and specular reflections. Experimental results show that realistic images can be successfully synthesized with keeping photometric consistency. |
Year | DOI | Venue |
|---|---|---|
1999 | 10.1109/IWAR.1999.803812 | IWAR |
Keywords | Field | DocType |
realistic image,specular reflection,lighting condition change,image-based rendering,arbitrary lighting condition,photometric linearization,conventional ibr algorithm,virtual lighting image synthesis,controllable framework,photometric consistency,appearance change,linear combination,mixed reality,diffuse reflectance,image based rendering,augmented reality,lighting,specular reflections,photometry,computer graphics | Linear combination,Computer vision,Computer graphics (images),Computer science,Specular reflection,Augmented reality,Artificial intelligence,Mixed reality,Image-based modeling and rendering,Rendering (computer graphics),Computer graphics,Linearization | Conference |
ISBN | Citations | PageRank |
0-7695-0359-4 | 6 | 1.20 |
References | Authors | |
4 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yasuhiro Mukaigawa | 1 | 478 | 53.31 |
| Sadahiko Mihashi | 2 | 6 | 1.20 |
| Takeshi Shakunaga | 3 | 192 | 43.46 |