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In-Depth Information
(a) Free viewp oint changing
(c) Hap tic interaction
(b) Free composition with computer graphics
Fig. 14
User interactions
sofa and a subtitle, described by existing MPEG-4 BIFS nodes. Furthermore, as
shown in Fig. 14(c), when the sofa included haptic information represented by a
bump map, we could feel its surface property wearing a haptic device using a hap-
tic rendering algorithm [27]. The home-shopping video clip is available in the web
site. (
http://www.imaging.utk.edu/people/sykim/
).
6 Conclusions
We addressed three problems in this chapter. First, we introduced a depth camera-
based hybrid camera system to generate high-quality and high-resolution video-
plus-depth. With the hybrid camera system, we intended to minimize inherent
technical problems in current depth cameras and generate reliable depth informa-
tion. Second, we talked about a hierarchical decomposition technique to render a
3D dynamic scene with video-plus-depth data. Finally, as one of possible applica-
tions of the hybrid camera system, we introduced a method to generate streamable
MPEG-4-based 3D video contents for the future home-shopping channel. The 3D
video contents including video-plus-depth and computer graphics images could
support various user-friendly interactions. We believe that the 3D video contents
exploitation system can present new directions for further researches related to in-
teractive 3D multimedia applications.
