KEYWORDS: 3D displays, Video, 3D video streaming, Receivers, 3D video compression, LCDs, Video compression, Multimedia, 3D acquisition, 3D image processing
The mobile broadcasting services getting deployed around the world are being evolved to new services. One of the
notable services is mobile stereoscopic service, called 3D, which can provide users with a stereoscopic view of TV
contents while on the move. This paper presents the design and the implementation of 3D DMB receiver enabling the
reception of mobile 3DTV and BIFS based interactive data services. Main concepts of 3D DMB receiver are the nonglasses
viewing experience, backward and forward compatibility and high transmission efficiency. We demonstrate the
main concepts and features of our 3D DMB receiver and outline the implementation result along with the future works.
KEYWORDS: Video, 3D displays, 3D image processing, 3D video streaming, 3D acquisition, Multimedia, Stereoscopic cameras, Video compression, Visualization, 3D video compression
This paper presents a stereoscopic contents authoring system that covers the creation and editing of stereoscopic
multimedia contents for the 3D DMB (Digital Multimedia Broadcasting) data services. The main concept of 3D DMB
data service is that, instead of full 3D video, partial stereoscopic objects (stereoscopic JPEG, PNG and MNG) are
stereoscopically displayed on the 2D background video plane. In order to provide stereoscopic objects, we design and
implement a 3D DMB content authoring system which provides the convenient and straightforward contents creation
and editing functionalities. For the creation of stereoscopic contents, we mainly focused on two methods: CG (Computer
Graphics) based creation and real image based creation. In the CG based creation scenario where the generated CG data
from the conventional MAYA or 3DS MAX tool is rendered to generate the stereoscopic images by applying the suitable
disparity and camera parameters, we use X-file for the direct conversion to stereoscopic objects, so called 3D DMB
objects. In the case of real image based creation, the chroma-key method is applied to real video sequences to acquire the
alpha-mapped images which are in turn directly converted to stereoscopic objects. The stereoscopic content editing
module includes the timeline editor for both the stereoscopic video and stereoscopic objects. For the verification of
created stereoscopic contents, we implemented the content verification module to verify and modify the contents by
adjusting the disparity. The proposed system will leverage the power of stereoscopic contents creation for mobile 3D
data service especially targeted for T-DMB with the capabilities of CG and real image based contents creation, timeline
editing and content verification.
KEYWORDS: Video, Receivers, 3D image processing, Computer programming, Image quality, 3D displays, Video coding, 3D video compression, Visualization, 3D video streaming
This paper presents a 3D (three dimensional) mobile broadcasting service based on depth-image-based rendering (DIBR)
technique in terrestrial digital multimedia broadcasting (T-DMB). In designing and developing a 3D visual service based
on mobile broadcasting system, we must consider system requirements such as the minimization of additional bit-rates
for 3D depth information due to the limitation of transmission channel bandwidth, the assurance of backward
compatibility with existing T-DMB, and the maximization of 3D effect while reducing eye fatigue. Therefore, the 3D
mobile broadcasting service based on DIBR technique can be one of the solutions to meet such requirements because the
allocated bit-rates of depth image with DIBR scheme is less than additional video bit-rates of another 3D format, while
keeping 3D quality and guaranteeing backward-compatibility with T-DMB. In this paper, we introduce an
implementation of DIBR-based 3D T-DMB system that supports the real-time rendering with good image quality and
depth effect at the receiver, verifying that it could be available in the mobile broadcasting. The verification is achieved
through objective and subjective evaluation, based on the simulation and implementation of the system. Finally, we will
confirm that DIBR-based 3D mobile broadcasting service would be commercialized in near future.
In this paper, we present motivation, system concept, and implementation details of stereoscopic 3D visual services on
T-DMB. We have developed two types of 3D visual service : one is '3D video service', which provides 3D depth feeling
for a video program by sending left and right view video streams, and the other is '3D data service', which provides
presentation of 3D objects overlaid on top of 2D video program. We have developed several highly efficient and
sophisticated transmission schemes for the delivery of 3D visual data in order to meet the system requirements such as
(1) minimization of bitrate overhead to comply with the strict constraint of T-DMB channel bandwidth; (2) backward
and forward compatibility with existing T-DMB; (3) maximize the eye-catching effect of 3D visual representation while
reducing eye fatigue. We found that, in contrast to conventional way of providing a stereo version of a program as a
whole, the proposed scheme can lead to variety of efficient and effective 3D visual services which can be adapted to
many business models.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.