Demand‐Driven Geometry Transmission for Distributed Virtual Environments

Schmalstieg, Dieter; Gervautz, Michael

doi:10.1111/1467-8659.1530421

Cited by 54 publications

(38 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the user's field of view (i.e., AOI) may not cover the entire VE, downloading the entire scene is not necessary. Hesina and Schmalstieg [18,5] proposed that user can use a circular AOI, and keep the consistency of only the objects within AOI. Additionally, if users just rotate views but do not move, the objects within the AOI need not be re-acquired.…”

Section: D Streamingmentioning

confidence: 99%

Selection strategies for peer-to-peer 3D streaming

Sung

Jiang

2008

Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video

View full text Add to dashboard Cite

In multi-user networked virtual environments such as Second Life, 3D streaming techniques have been used to progressively download and render 3D objects and terrain, so that a full download or prior installation is not necessary. As existing client-server architectures may not scale easily, 3D streaming based on peer-to-peer (P2P) delivery is recently proposed to allow users to acquire 3D content from other users instead of the server. However, discovering the peers who possess relevant data and have enough bandwidth to answer data requests is non-trivial. A naive query-response approach thus may be inefficient and could incur unnecessary latency and message overhead. In this paper, we propose a peer selection strategy for P2P-based 3D streaming, where peers exchange information on content availability incrementally with neighbors. Requestors can thus discover suppliers quickly and avoid time-consuming queries. A multi-level area of interest (AOI) request is also adopted to avoid request contention due to concentrated requests. Simulation results show that our strategies achieve better system scalability and streaming performance than a naive query-response approach.

show abstract

Section: D Streamingmentioning

confidence: 99%

Selection strategies for peer-to-peer 3D streaming

Sung

Jiang

2008

Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video

View full text Add to dashboard Cite

show abstract

“…Schmalstieg and Gervautz [16] first introduce scene streaming where a server determines and transmits visible objects at different level-of-details (LODs) to clients. Subsequent work replaces discrete LODs with continuous (smooth) LODs [17].…”

Section: Related Workmentioning

confidence: 99%

FLoD: A Framework for Peer-to-Peer 3D Streaming

Hu¹,

Huang²,

Chang³

et al. 2008

2008 Proceedings IEEE INFOCOM - The 27th Conference on Computer Communications

View full text Add to dashboard Cite

Abstract-Interactive 3D content on Internet has yet become popular due to its typically large volume and the limited network bandwidth. Progressive content transmission, or 3D streaming, thus is necessary to enable real-time content interactions. However, the heavy data and processing requirements of 3D streaming challenge the scalability of client-server delivery methods. We propose the use of peer-to-peer (P2P) networks for 3D streaming, and argue that due to the non-linear access patterns of 3D content, P2P 3D streaming is a new class of applications apart from existing media streaming and requires new investigations.We also present FLoD, the first P2P 3D streaming framework that allows clients of 3D virtual globe or virtual environment (VE) applications to obtain relevant data from other clients while minimizing server resource usage. To demonstrate how FLoD applies to real-world scenarios, we build a prototype system that adapts JPEG 2000-based 3D mesh streaming for P2P delivery. Experiments show that server-side bandwidth usage can thus be reduced, while simulations indicate that P2P 3D streaming is fundamentally more scalable than client-server approaches.

show abstract

“…Once some objects are selected for transmission, streaming techniques for single objects are then employed. Many techniques useful for scene streaming were first described by [Schmalstieg and Gervautz 1996], where each user's visibility is limited to a circular area of interest (AOI). A server determines and transmits the set of visible objects at different level of detail (LOD) of model geometries to clients.…”

Section: D Streamingmentioning

confidence: 99%

A case for 3D streaming on peer-to-peer networks

2006

Proceedings of the Eleventh International Conference on 3D Web Technology

View full text Add to dashboard Cite

One of the most serious issues holding back the widespread of 3D contents on Internet has been their inaccessibility due to large data volume. Many compression and progressive transmission techniques, as well as format standards, have been proposed in recent years to make 3D streaming increasingly viable for the efficient and accessible delivery of 3D contents. However, existing proposals have yet to seriously address one of the most important issues in practical adoption -a system's scalability in terms of the number of concurrent users. We argue that due to 3D contents' large data volume and interactive nature, client-server architecture, with its inherently fixed resource availability and high cost, will not be suitable to support popular Internet-scale 3D streaming. On the other hand, peer-to-peer (P2P) architectures hold the promise of both scalability and affordability. In this position paper, we describe the potential promises and challenges in adapting 3D streaming to P2P networks, using multi-user networked virtual environment (NVE) as an example. We also propose Flowing LoD (FLoD), a scalable, distributed and fault-tolerant P2P 3D streaming mechanism, that is based on Voronoi-based Overlay Network (VON), a P2P overlay specifically designed for NVE applications.

show abstract

Demand‐Driven Geometry Transmission for Distributed Virtual Environments

Cited by 54 publications

References 15 publications

Selection strategies for peer-to-peer 3D streaming

Selection strategies for peer-to-peer 3D streaming

FLoD: A Framework for Peer-to-Peer 3D Streaming

A case for 3D streaming on peer-to-peer networks

Contact Info

Product

Resources

About