2009先进视频编码新技术（持续更新）

 

The latest KTA software is JM11KTA2.3, which integrates the coding tools adopted in the Geneva meeting (Jan. 2009) and before.  最新校验模型JM11KTA2.3中包含的新技术及对应的VCEG提案号如下：

1.       Inter prediction

1.       Adaptive interpolation filter (AIF)

§         2-D non-separable AIF (AD08, AE16)

        2-D non-separable AIF 的详细介绍，请参见《应用于先进视频编码的二维自适应滤波器AIF分析》http://blog.youkuaiyun.com/fly1019/archive/2009/05/14/4183689.aspx

§         Separable AIF (COM16-C219, AG10)

§         Directional AIF (DAIF) (AG21, AG22, AH17, AH18)

§         Enhanced DAIF (E-DAIF) (AI12,  COM16-C125, COM16-C126)

§         Enhanced AIF (EAIF) (C464, AI38, AJ30)

§         Switch interpolation filters with offsets (SIFO) (C463, AI35, AJ29, COM16-C126)

§         High precision filter (HPF) (AI33)

§         Single-Pass Encoding (AJ29, AK26)

2.       1/8-pel MCP (AD09)

3.       Extended MCP block size (COM16-C123)

4.       Competition-based MV prediction (AC06)

2.       Transform and quantization

1.       Mode-dependent directional transform (MDDT) (AF15, AG11, AH20, AJ24, AI36)

2.       Very large block transform (COM16-C123)

3.       Adaptive prediction error coding (APEC) (AB06, AD07, AE15)

4.       Adaptive quantization matrix selection (AQMS) (AC07, AD06, AF08, AI19)

5.       Rate-distortion optimized quantization (RDO-Q) (AH21)

3.       Entropy coding

1.       Parallel CABAC (COM16-C405, AI32)

4.       In-loop filter

1.       Block-based adaptive loop filter (BALF) (AI18, AJ13)

2.       Quadtree-based adaptive loop filter (QALF) (COM16-C181, AK22)

5.       Post filter (AI34, COM16–C128)

6.       Internal bit depth increasing (IBDI) (AE13, AF07)

(以上内容转自：http://www.h265.net)

各提案可以通过以下地址下载 http://wftp3.itu.int/av-arch/video-site  其中2007年4月的San Jose 会议提案，VCEG-AFxx的技术分析和解读可参考李世平专栏http://blog.youkuaiyun.com/sunshine1314/archive/2007/04/20/1572822.aspx

 

 

 1/8运动补偿

Jörn Ostermann, Matthias Narroschke, Motion compensated prediction with 1/8-pel displacement vector resolution, VCEG-AD09, 30^th Meeting: Hangzhou, China, 23-27 October, 2006

In order to interpolate the reference image at sub-pel positions, the following filters are applied. In the case that the adaptive interpolation filters are disabled, the same interpolation filters as in JM43a are applied. These are:

·         [-3,12,-39,158,158,-39,12,-3]/256 for 1/2-pel positions

·         [-3,12,-37,229,71,-21,6,-1]/256 and [-1,6,-21,71,229,-37,12,-3]/256 for 1/4-pel positions

·         Bilinear filter for 1/8-pel positions

In the case that the adaptive interpolation filters are enabled, the following interpolation filters are applied:

·         Adaptive interpolation filters for 1/2-pel and 1/4-pel positions

·         Bilinear filter for 1/8-pel positions