A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264
The CABAC entropy coding engine is a well known throughput bottleneck in the AVC/H.264 video codec. It was redesigned to achieve higher throughput for the latest video coding standard HEVC/H.265. Various improvements were made including reduction in context coded bins, reduction in total bins and gr...
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2015
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| Online Access: | http://hdl.handle.net/1721.1/93882 https://orcid.org/0000-0003-4841-3990 |
| _version_ | 1826209484085657600 |
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| author | Sze, Vivienne Budagavi, Madhukar |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Sze, Vivienne Budagavi, Madhukar |
| author_sort | Sze, Vivienne |
| collection | MIT |
| description | The CABAC entropy coding engine is a well known throughput bottleneck in the AVC/H.264 video codec. It was redesigned to achieve higher throughput for the latest video coding standard HEVC/H.265. Various improvements were made including reduction in context coded bins, reduction in total bins and grouping of bypass bins. This paper discusses and quantifies the impact of these techniques and introduces a new metric called Bjontegaard delta cycles (BD-cycle) to compare the CABAC throughput of HEVC vs. AVC. BD-cycle uses the Bjontegaard delta measurement method to compute the average difference between the cycles vs. bit-rate curves of HEVC and AVC. This metric is useful for estimating the throughput of an HEVC CABAC engine from an existing AVC CABAC design for a given bit-rate. Under the common conditions set by the JCT-VC standardization body, HEVC CABAC has an average BD-cycle reduction of 31.1% for all intra, 24.3% for low delay, and 25.9% for random ac-cess, when processing up to 8 bypass bins per cycle. |
| first_indexed | 2024-09-23T14:23:13Z |
| format | Article |
| id | mit-1721.1/93882 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:23:13Z |
| publishDate | 2015 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/938822022-09-29T09:08:05Z A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 Sze, Vivienne Budagavi, Madhukar Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Sze, Vivienne Sze, Vivienne The CABAC entropy coding engine is a well known throughput bottleneck in the AVC/H.264 video codec. It was redesigned to achieve higher throughput for the latest video coding standard HEVC/H.265. Various improvements were made including reduction in context coded bins, reduction in total bins and grouping of bypass bins. This paper discusses and quantifies the impact of these techniques and introduces a new metric called Bjontegaard delta cycles (BD-cycle) to compare the CABAC throughput of HEVC vs. AVC. BD-cycle uses the Bjontegaard delta measurement method to compute the average difference between the cycles vs. bit-rate curves of HEVC and AVC. This metric is useful for estimating the throughput of an HEVC CABAC engine from an existing AVC CABAC design for a given bit-rate. Under the common conditions set by the JCT-VC standardization body, HEVC CABAC has an average BD-cycle reduction of 31.1% for all intra, 24.3% for low delay, and 25.9% for random ac-cess, when processing up to 8 bypass bins per cycle. 2015-02-06T13:52:01Z 2015-02-06T13:52:01Z 2013-10 Article http://purl.org/eprint/type/JournalArticle 978-1-4673-6238-2 2162-3562 http://hdl.handle.net/1721.1/93882 Sze, Vivienne, and Madhukar Budagavi. “A Comparison of CABAC Throughput for HEVC/H.265 VS. AVC/H.264.” SiPS 2013 Proceedings (October 2013). https://orcid.org/0000-0003-4841-3990 en_US http://dx.doi.org/10.1109/SiPS.2013.6674499 2013 IEEE Workshops on Signal Processing Systems (SiPS) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) Prof. Sze via Chris Sherratt |
| spellingShingle | Sze, Vivienne Budagavi, Madhukar A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title | A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title_full | A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title_fullStr | A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title_full_unstemmed | A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title_short | A comparison of CABAC throughput for HEVC/H.265 VS. AVC/H.264 |
| title_sort | comparison of cabac throughput for hevc h 265 vs avc h 264 |
| url | http://hdl.handle.net/1721.1/93882 https://orcid.org/0000-0003-4841-3990 |
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