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Error-Resilient Transmission of 3D Models GHASSAN ALREGIB, YUCEL ALTUNBASAK, and JAREK ROSSIGNAC
 

Summary: Error-Resilient Transmission of 3D Models
GHASSAN ALREGIB, YUCEL ALTUNBASAK, and JAREK ROSSIGNAC
Georgia Institute of Technology
In this article, we propose an error-resilient transmission method for progressively compressed 3D models. The proposed method
is scalable with respect to both channel bandwidth and channel packet-loss rate. We jointly design source and channel coders
using a statistical measure that (i) calculates the number of both source and channel coding bits, and (ii) distributes the channel
coding bits among the transmitted refinement levels in order to maximize the expected decoded model quality. In order to keep
the total number of bits before and after applying error protection the same, we transmit fewer triangles in the latter case to
accommodate the channel coding bits. When the proposed method is used to transmit a typical model over a channel with a 10%
packet-loss rate, the distortion (measured using the Hausdorff distance between the original and the decoded models) is reduced
by 50% compared to the case when no error protection is applied.
Categories and Subject Descriptors: C.2.0 [Computer-Communication Networks]: General--Data communications; I.3.0
[Computer Graphics]: General; E.4 [Coding and Information Theory]--Data compaction and compression; Error control
codes
General Terms: Algorithms, Experimentation, Performance, Reliability
Additional Key Words and Phrases: 3D graphics compression, error resilience, joint source and channel coding, media streaming,
priority encoding transmission, progressive transmission, unequal error protection, virtual reality over IP
1. INTRODUCTION
An increasing number of Internet applications utilize highly detailed 3D models, giving rise to a large
amount of data to be stored, transmitted, and rendered within a limited time frame. For example,

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering