Scott Horton, techht.com
Join Date: Aug 2004
Location: Mid-South USA
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"Video coding: The 2nd edition of ITU-T H.265 HEVC was Consented It includes three important types of extensions of HEVC coding capabilities, that will increase the quality of compressed video and better user experience:
1. Format range extensions of HEVC, known as RExt, adding improved colour representations. RExt includes support for higher bit-depths and enhanced chroma formats, including the use of full-resolution chroma.
2. Scalable extensions of HEVC, known as SHVC, enabling better performance for dynamic video streaming on networks with varying transmission conditions and other scenarios involving multiple bit-rate services. SHVC adds support for embedded bitstream scalability in which different levels of encoding quality are efficiently supported by adding or removing layered subsets of encoded data.
3. Multiview extensions of HEVC, known as MV-HEVC, as the first native support for 3D video encoding in HEVC. It provides an efficient representation of video content with multiple camera views and optional depth map information, such as for 3D stereoscopic and autostereoscopic video applications.
Conformance testing of image and video coding standards: A pair of new specifications that are used for conformance testing of ITU-T H.265 HEVC video were consented at this meeting:
- · ITU-T H.265.1 "Conformance specification for ITU-TH.265 high efficiency video coding" (New) [TD 286/Plen]
- · ITU-T H.265.2 "Reference software for ITU-T H.265 high efficiency video coding" (New) [TD 287/Plen]"
So among other things the 2nd edition of H.265/HEVC includes support for increased bit depths, up to 4:4:4 chroma, and 3D. The full set of extensions/enhancements will be documented in the actual standards document when it is published and will include such other enhancements as support for higher refresh rates at 4K/UHD resolution.