Journal of Multimedia Information System

한국멀티미디어학회 (Korea Multimedia Society)
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Complexity Analysis of Internet Video Coding (IVC) Decoding

  • Park, Sang-hyo (Communications & Media R&D Division, Korea Electronics Technology Institute) ;
  • Dong, Tianyu (Department of Computer Science, Hanyang University) ;
  • Jang, Euee S. (Department of Computer Science, Hanyang University)
  • 투고 : 2017.11.24
  • 심사 : 2017.12.09
  • 발행 : 2017.12.31
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초록

The Internet Video Coding (IVC) standard is due to be published by Moving Picture Experts Group (MPEG) for various Internet applications such as internet broadcast streaming. IVC aims at three things fundamentally: 1) forming IVC patents under a free of charge license, 2) reaching comparable compression performance to AVC/H.264 constrained Baseline Profile (cBP), and 3) maintaining computational complexity for feasible implementation of real-time encoding and decoding. MPEG experts have worked diligently on the intellectual property rights issues for IVC, and they reported that IVC already achieved the second goal (compression performance) and even showed comparable performance to even AVC/H.264 High Profile (HP). For the complexity issue, however, there has not been thorough analysis on IVC decoder. In this paper, we analyze the IVC decoder in view of the time complexity by evaluating running time. Through the experimental results, IVC is 3.6 times and 3.1 times more complex than AVC/H.264 cBP under constrained set (CS) 1 and CS2, respectively. Compared to AVC/H.264 HP, IVC is 2.8 times and 2.9 times slower in decoding time under CS1 and CS2, respectively. The most critical tool to be improved for lightweight IVC decoder is motion compensation process containing a resolution-adaptive interpolation filtering process.

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