Abstract
Virtual studios have long been used in commercial broadcasting. However, most virtual studios are based on "blue screen" technology, and its two-dimensional (2-D) nature restricts the user from making natural three-dimensional (3-D) interactions. Actors have to follow prewritten scripts and pretend as if directly interacting with the synthetic objects. This often creates an unnatural and seemingly uncoordinated output. In this paper, we introduce an improved virtual-studio framework to enable actors/users to interact in 3-D more naturally with the synthetic environment and objects. The proposed system uses a stereo camera to first construct a 3-D environment (for the actor to act in), a multiview camera to extract the image and 3-D information about the actor, and a real-time registration and rendering software for generating the final output. Synthetic 3-D objects can be easily inserted and rendered, in real time, together with the 3-D environment and video actor for natural 3-D interaction. The enabling of natural 3-D interaction would make more cinematic techniques possible including live and spontaneous acting. The proposed system is not limited to broadcast production, but can also be used for creating virtual/augmented-reality environments for training and entertainment.
Original language | English |
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Pages (from-to) | 758-773 |
Number of pages | 16 |
Journal | IEEE Transactions on Systems, Man, and Cybernetics Part A:Systems and Humans |
Volume | 36 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2006 Jul |
Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received February 10, 2004; revised July 27, 2004, November 14, 2004, and December 23, 2004. The work described in this paper was supported in part and carried out at Advanced Telecommunications Research (ATR) Media Integration and Communications (MIC) Laboratory, Japan, from 2000 to 2001, and also by the Korean Ministry of Education’s Brain Korea (BK) 21 program and the Korean Ministry of the Information and Communication’s Information Technology Research Center (ITRC) program, and continued at the Pohang University of Science and Technology (POSTECH) Virtual Reality (VR) Laboratory. This paper was recommended by Associate Editor I. Gu.
Keywords
- Augmented reality
- Calibration
- Image segmentation
- Multiview and stereo cameras
- Registration
- Three-dimensional (3-D) interaction
- Three-dimensional (3-D) model reconstruction
- Virtual environment (VE)
- Virtual studio
- Z-keying
ASJC Scopus subject areas
- Software
- Control and Systems Engineering
- Human-Computer Interaction
- Computer Science Applications
- Electrical and Electronic Engineering