International organisation for standardisation organisation internationale de normalisation



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DF: Deblocking filter.

  • DT: Decoding time.

  • EPB: Emulation prevention byte (as in the emulation_prevention_byte syntax element).

  • ET: Encoding time.

  • GPB: Generalized P/B – a not-particularly-well-chosen name for B pictures in which the two reference picture lists are identical.

  • HE: High efficiency – a set of coding capabilities designed for enhanced compression performance (contrast with LC). Often loosely associated with RA.

  • HEVC: High Efficiency Video Coding – the video coding standardization initiative under way in the JCT-VC.

  • HLS: High-level syntax.

  • HM: HEVC Test Model – a video coding design containing selected coding tools that constitutes our draft standard design – now also used especially in reference to the (non-normative) encoder algorithms (see WD and TM).

  • IBDI: Internal bit-depth increase – a technique by which lower bit depth (8 bits per sample) source video is encoded using higher bit depth signal processing, ordinarily including higher bit depth reference picture storage (ordinarily 12 bits per sample).

  • IPCM: Intra pulse-code modulation (similar in spirit to IPCM in AVC).

  • JM: Joint model – the primary software codebase that has been developed for the AVC standard.

  • JSVM: Joint scalable video model – another software codebase that has been developed for the AVC standard, which includes support for scalable video coding extensions.


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