An Overview of Tiles in HEVC
An Overview of Tiles in HEVC
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DOI：
10.1109/jstsp.2013.2271451
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发表时间：
2013-12-01
影响因子：
7.5
通讯作者：
Zhou, Minhua
中科院分区：
文献类型：
--
作者：
Misra, Kiran;Segall, Andrew;Zhou, Minhua
平铺是高效视频编码(HEVC)标准中的一项新功能，它将图片划分为独立的矩形区域。这一划分提供了许多优势。具体地说，与以前的基于切片的方法相比，它通过提高并行体系结构的编码效率，增加了新标准的“并行友好性”。此外，Tiles有助于改进的最大传输单元(MTU)大小匹配、减少的行缓冲内存以及附加的感兴趣区域功能。在本文中，我们介绍了Tiles功能，并对该工具的性能进行了考察。对于不同的并行化因子和MTU大小要求，报告了编码效率。此外，还提出了一种基于瓦片的感兴趣区域编码方法。
Tiles is a new feature in the High Efficiency Video Coding (HEVC) standard that divides a picture into independent, rectangular regions. This division provides a number of advantages. Specifically, it increases the "parallel friendliness" of the new standard by enabling improved coding efficiency for parallel architectures, as compared to previous sliced based methods. Additionally, tiles facilitate improved maximum transmission unit (MTU) size matching, reduced line buffer memory, and additional region-of-interest functionality. In this paper, we introduce the tiles feature and survey the performance of the tool. Coding efficiency is reported for different parallelization factors and MTU size requirements. Additionally, a tile-based region of interest coding method is developed.