[Update on 2011-01-25] The repository URL for HM-1.0 is moved to https://hevc.hhi.fraunhofer.de/svn/svn_HEVCSoftware/tags/HM-1.0 . The latest reference software of HEVC Test Model (HM-1.0) was released at svn servers under the HM-1.0 tag. The repository URL for HM-1.0 is https://hevc.hhi.fraunhofer.de/svn/svn_TMuCSoftware/tags/HM-1.0. HM-1.0 is significantly different from the previous versions of TMuC in that a lot of code implementing things [...]

Permanent Link: HEVC Test Model (HM) Reference Software 1.0 Released

[Update on 2011-02-15] The 12-tap DCT-based interpolation filter (high efficiency configuration) and 6-tap directional interpolation filter (low complexity configuration) for 1/4 luma sample will be replaced by 8-tap DCT-based interpolation filter for both HE and LC (JCTVC-D344) in the upcoming HM2.0. In addition, the bilinear interpolation filter for 1/8 chroma sample will be replaced by 4-tap [...]

Permanent Link: Analysis of Coding Tools in HEVC Test Model (HM 1.0) – Inter Prediction

The current intra prediction in HM unified two directional intra prediction methods, Arbitrary Direction Intra (ADI) introduced in JCTVC-A124 and Angular Intra Prediction introduced in JCTVC-A119, with simplification for parallel processing possibility, leading to a simplified unified intra prediction (JCTVC-B100, JCTVC-C042). In current HM, unified intra prediction provides up to 34 directional prediction modes for different PUs. With the [...]

Permanent Link: Analysis of Coding Tools in HEVC Test Model (HM 1.0) – Intra Prediction

The HEVC test model (HM) still belongs to block-based hybrid video coding framework, except that the macroblock is extended to larger size (up to 64×64) compared with H.264/AVC. In order to facilitate syntax representation of block hierarchy, three block concepts are introduced: coding unit (CU), prediction unit (PU), and transform unit (TU). The overall coding [...]

Permanent Link: Analysis of Coding Tools in HEVC Test Model (HM 1.0) – Coding Structure

The HEVC test model (HM) was formally established in the 3rd JCT-VC meeting in Guangzhou, China. HM only contains the minimum set of well tested tools together from a coherent design that is confirmed to show good capability, meanwhile it also follows the “one tool one functionality“ approach. It expects to closely resemble the performance of best–performing proposals, [...]

Permanent Link: Analysis of Coding Tools in HEVC Test Model (HM 1.0) – Overview

[Update]: A new email reflector,  jct-vc@lists.rwth-aachen.de, is created for discussions of the new team effort. For subscription, you should follow this link: http://mailman.rwth-aachen.de/mailman/listinfo/jct-vc. Only subscribers to the list will be able to send messages to this list. During the 39th VCEG and 91st MPEG meeting held in Kyoto, Japan on January 17-22, 2010, the call for proposals (CfP) [...]

Permanent Link: Final Call for Proposals on H.NGVC/HVC Issued Jointly by VCEG and MPEG

In the beginning plenary of 90th MPEG meeting on Oct. 26, several national bodies, such as USNB, FRNB, SGNB, and CNNB, recommended to delay the submission date of responses to the Call for Proposal (CfP) on HVC from December 2009 to March 2010. The major concerns from the national bodies are: the need of sufficient time [...]

Permanent Link: Delay the Submission of Responses to CfP on HVC, or not?

3. Adaptive Loop Filter As far as adaptive loop filter (ALF) is concerned, there are three types of ALF: frame-based, block-based and quadtree-based ALFs. All of them are based on wiener filter, but with different filtering control basis. In frame-based ALF [VCEG-C437/AI14, C402], only one picture level flag is used to signal the decision of [...]

Permanent Link: Adaptive Post/Loop Filters in JM/KTA – Part 2