Client System for Realistic Broadcasting: A First Prototype

Cha, Jongeun; Kim, Seung-Man; Kim, Sung-Yeol; Kim, Sehwan; Yoon, Seung-Uk; Oakley, Ian; Ryu, Jeha; Lee, Kwan H.; Woo, Woontack; Ho, Yo‐Sung

doi:10.1007/11582267_16

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…We have evaluated the performance of our proposed system with two test sequences, Home-shopping [9] and Breakdancers [10,11]. Home-shopping has 100 frames with 720X480 resolution, whereas Breakdancers has 100 frames with 1024x768 resolution.…”

Section: Resultsmentioning

confidence: 99%

3DTV System using Depth Image-Based Video in the MPEG-4 Multimedia Framework

Kim

Cha

Lee

et al. 2007

2007 3DTV Conference

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In this paper, we present a 3DTV system using a new depth image-based representation (DIBR). After obtaining depth images from multi-view cameras or a depth-range camera, we decompose the depth image into three disjoint layer images and a layer descriptor image. Then, we combine the decomposed images with color images to generate a new representation of dynamic 3D scenes, called as a 3D depth video. The 3D depth video is compressed by a H.264/AVC coder, and streamed to clients over IP networks in the MPEG-4 multimedia framework. The proposed 3DTV system enables not only enjoying a high-quality 3D video in real time, but also experiencing various user-friendly interactions such as free viewpoint changing, composition of computer graphics, and even haptic display.Index Terms-3D depth video, Depth image-based representation, MPEG-4 multimedia framework, 3DTV

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Section: Resultsmentioning

confidence: 99%

3DTV System using Depth Image-Based Video in the MPEG-4 Multimedia Framework

Kim

Cha

Lee

et al. 2007

2007 3DTV Conference

Self Cite

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“…Homeshopping sequences have 100 frames with 720 × 480 resolutions, while Breakdance sequences have 100 frames with 1024 × 768 resolutions. Depth maps for Home-shopping are captured by a depth camera, ZCam TM [17], [18]. On the other hand, depth maps for Breakdance sequences are obtained by a stereo matching algorithm [7], [19].…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Decomposition of Depth Map Sequences for Representation of Three-Dimensional Dynamic Scenes

Kim¹,

Ho²

2007

IEICE Transactions on Information and Systems

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In this paper, we propose a new scheme to represent threedimensional (3-D) dynamic scenes using a hierarchical decomposition of depth maps. In the hierarchical decomposition, we split a depth map into four types of images: regular mesh, boundary, feature point and number-oflayer (NOL) images. A regular mesh image is obtained by down-sampling a depth map. A boundary image is generated by gathering pixels of the depth map on the region of edges. For generating feature point images, we select pixels of the depth map on the region of no edges according to their influence on the shape of a 3-D surface, and convert the selected pixels into images. A NOL image includes structural information to manage the other three images. In order to render a frame of 3-D dynamic scenes, we first generate an initial surface utilizing the information of regular mesh, boundary and NOL images. Then, we enhance the initial surface by adding the depth information of feature point images. With the proposed scheme, we can represent consecutive 3-D scenes successfully within the framework of a multi-layer structure. Furthermore, we can compress the data of 3-D dynamic scenes represented by a mesh structure by a 2-D video coder.

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Realistic Broadcasting Using Multi-modal Immersive Media

Kim

Yoon

2005

Advances in Multimedia Information Processing - PCM 2005

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Client System for Realistic Broadcasting: A First Prototype

Cited by 8 publications

References 5 publications

3DTV System using Depth Image-Based Video in the MPEG-4 Multimedia Framework

3DTV System using Depth Image-Based Video in the MPEG-4 Multimedia Framework

Hierarchical Decomposition of Depth Map Sequences for Representation of Three-Dimensional Dynamic Scenes

Realistic Broadcasting Using Multi-modal Immersive Media

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