A QoS controller for adaptive streaming of 3D triangular scenes

  • Authors:
  • ZhiQuan Cheng;ShiYao Jin

  • Affiliations:
  • PDL Lab., National University of Defense Technology, Changsha City, Hunan Province, P.R. China;PDL Lab., National University of Defense Technology, Changsha City, Hunan Province, P.R. China

  • Venue:
  • Edutainment'07 Proceedings of the 2nd international conference on Technologies for e-learning and digital entertainment
  • Year:
  • 2007

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Abstract

With the development of network, it's a common requirement to perceptually access the 3D scenes at a remote server. This demand has not been filled by software standards and their implementations, leaving a wide potential for technical innovations. In the paper, we present a QoS (Quality of Service) controller for remote rendering of 3D contents, aiming at higher real-time performance just as rendering local 3D scenes. The model of our QoS controller is defined by a high-level heuristic function, which has integrated important perceptual factors. And then, guided by the QoS controller, a hybrid transcoding algorithm is developed, which adaptively partitions each 3D model into different modality: the metadata (its compressed base mesh with texture) and a series of refiner meshes. Consequently, the 3D scenes can be adaptively and progressively transmitted to a requesting client, and be fluently displayed at end user's window in a constant frame rate. Experimental results show the soundness of the proposed controller and algorithm guided by the 3D controller.