Accelerating HEVC transcoder by exploiting decoded quadtree

Minyong Sung, Minwoo Kim, Minsik Kim, Won Woo Ro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper proposes an accelerated High-Efficiency Video Coding (HEVC) transcoder which can promptly provide downscaled video contents to various devices. The quadtree information is first extracted from the decoding process and is transformed for the target resolution. By utilizing the decoded depth information, the encoder can be accelerated by only searching the optimal depths in the quadtree, without losing the video quality. The encoder also adaptively changes the depth search ranges according to the picture order count (POC) for further optimization. Our proposed method shows a maximum encoding speedup of 2.18, with only 0.3% BD-rate increase in the best case.

Original languageEnglish
Title of host publicationISCE 2014 - 18th IEEE International Symposium on Consumer Electronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479945924
DOIs
Publication statusPublished - 2014 Jan 1
Event18th IEEE International Symposium on Consumer Electronics, ISCE 2014 - Jeju, Korea, Republic of
Duration: 2014 Jun 222014 Jun 25

Publication series

NameProceedings of the International Symposium on Consumer Electronics, ISCE

Other

Other18th IEEE International Symposium on Consumer Electronics, ISCE 2014
CountryKorea, Republic of
CityJeju
Period14/6/2214/6/25

Fingerprint

Image coding
Decoding

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Sung, M., Kim, M., Kim, M., & Ro, W. W. (2014). Accelerating HEVC transcoder by exploiting decoded quadtree. In ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics [6884329] (Proceedings of the International Symposium on Consumer Electronics, ISCE). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCE.2014.6884329
Sung, Minyong ; Kim, Minwoo ; Kim, Minsik ; Ro, Won Woo. / Accelerating HEVC transcoder by exploiting decoded quadtree. ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics. Institute of Electrical and Electronics Engineers Inc., 2014. (Proceedings of the International Symposium on Consumer Electronics, ISCE).
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Sung, M, Kim, M, Kim, M & Ro, WW 2014, Accelerating HEVC transcoder by exploiting decoded quadtree. in ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics., 6884329, Proceedings of the International Symposium on Consumer Electronics, ISCE, Institute of Electrical and Electronics Engineers Inc., 18th IEEE International Symposium on Consumer Electronics, ISCE 2014, Jeju, Korea, Republic of, 14/6/22. https://doi.org/10.1109/ISCE.2014.6884329

Accelerating HEVC transcoder by exploiting decoded quadtree. / Sung, Minyong; Kim, Minwoo; Kim, Minsik; Ro, Won Woo.

ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics. Institute of Electrical and Electronics Engineers Inc., 2014. 6884329 (Proceedings of the International Symposium on Consumer Electronics, ISCE).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This paper proposes an accelerated High-Efficiency Video Coding (HEVC) transcoder which can promptly provide downscaled video contents to various devices. The quadtree information is first extracted from the decoding process and is transformed for the target resolution. By utilizing the decoded depth information, the encoder can be accelerated by only searching the optimal depths in the quadtree, without losing the video quality. The encoder also adaptively changes the depth search ranges according to the picture order count (POC) for further optimization. Our proposed method shows a maximum encoding speedup of 2.18, with only 0.3% BD-rate increase in the best case.

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Sung M, Kim M, Kim M, Ro WW. Accelerating HEVC transcoder by exploiting decoded quadtree. In ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics. Institute of Electrical and Electronics Engineers Inc. 2014. 6884329. (Proceedings of the International Symposium on Consumer Electronics, ISCE). https://doi.org/10.1109/ISCE.2014.6884329