H.266/VVC 新发布的参考软件

      H.266新发布了两个参考软件,以后的研究工作都将基于这两个平台:

      一个是the test model (VTM) ,另一个是 the benchmark set (BMS),前者在HEVC的基础上加了三叉树,四叉树和二叉树的划分。后者在前者的基础上加了9个新的工具,分别如下。

 

  • 65 intra prediction modes (帧内预测)
  • LM chroma mode (帧内预测)
  • Affine motion (帧间预测)
  • Subblock merge candidate(ATMVP) (帧间预测)
  • Adaptive motion vector precision (帧间预测)
  • Decoder motion vector refinement (帧间预测) 平均码率节省量: -0.45%
  • AMT+44NSST (变换编码)
  • Coefficient coding(熵编码)
  • GALF(环路后处理)

 

这两个参考软件的下载地址如下:

 

   https://jvet.hhi.fraunhofer.de/svn/svn_VVCSoftware_VTM/tags/VTM-1.0

   https://jvet.hhi.fraunhofer.de/svn/svn_VVCSoftware_BMS/tags/BMS-1.0

   下载下来用cmake软件编译一下就可以用啦。

7月份会议开完,有出来了另个更新的参考代码版本,VTM2.0.1和BMS2.0.1

VTM1.0 在H.265/HEVC的基础上接受了四叉树、二叉树和三叉树机制;
VTM2.0 接受了如下的技术点
VVC Test Model 2 (VTM2) algorithm description and encoding method

Ed. Notes:
•    Incorporated JVET-K0230: Separate trees for intra slices (without multi-DMs) with an implicit split to 64x64; 

(即对于I帧,亮度和色度独立划分)
•    Incorporated JVET-K0556: Prohibit ternary split of something bigger than 64 in width or height (and not send the bit to indicate ternary type at that level). 宽或者高大于64时禁止三叉树划分
•    Incorporated JVET-K0351 (test c): Keep only the TT restriction (preventing binary split with same orientation in center partition of the ternary split),在三叉树划分的中间块中禁止二叉树划分
•    Incorporated JVET-K0554: Implicit splitting at picture boundaries and ensure MinQTSize at boundary splits
•    Incorporated JVET-K0063: Position dependent intra prediction combination (PDPC)
•    Incorporated JVET-K0190: CCLM only (test 4.1.8),只接收了模式67,模式68--72没有被接收
•    Incorporated JVET-K0122: DC prediction bug fix,只使用长边计算均值?
•    Incorporated JVET-K0529: 67 modes with 3MPM and FLC for non-MPM
•    Incorporated JVET-K0500: Wide-angle intra prediction for non-square block,对于矩形块的宽角度帧内预测
•    Incorporated MTS (AMT) modification: Multiple transform selection (MTS),多核变换
 

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