Block adaptive selection of multiple core transforms for video coding

Santiago De-Luxán-Hernández, Detlev Marpe, Heiko Schwarz, Klaus Muller, Mathias Wien, Jens Rainer Ohm, Thomas Wiegand

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

2 Citations (Scopus)

Abstract

Transform coding tools in video coding have traditionally relied on the Discrete Cosine Transform Type II (DCT-II) to map residual signals to a new domain where quantization and entropy coding tools achieve a better coding efficiency than in the spatial domain. However, the DCT-II is not sufficient to model all different types of residual signals efficiently, especially in the intra-predicted blocks case. For this reason, the DST-VII was introduced in H.265/High Efficiency Video Coding (HEVC) in order to improve the compression performance of 4 × 4 intra-predicted blocks. In this paper we propose a multiple core transform approach, in which each transform is separable and generated by combining two one-dimensional transforms for the vertical and horizontal directions. The pair of 1-D transforms is selected from a set of three different types of Discrete Trigonometric Transforms and the Identity Transformation. Test results show that the proposed algorithm achieves bit rate reductions of 3% on average with respect to HEVC for intra-predicted residuals.

Original languageEnglish
Title of host publication2016 Picture Coding Symposium, PCS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509059669
DOIs
Publication statusPublished - 2017 Apr 19
Externally publishedYes
Event2016 Picture Coding Symposium, PCS 2016 - Nuremberg, Germany
Duration: 2016 Dec 42016 Dec 7

Other

Other2016 Picture Coding Symposium, PCS 2016
CountryGermany
CityNuremberg
Period16/12/416/12/7

Fingerprint

Image coding
Discrete cosine transforms
Entropy
Mathematical transformations

Keywords

  • Discrete Trigonometric Transforms
  • Intra Coding
  • Multiple Transforms
  • Separable Transforms
  • Transform Coding

ASJC Scopus subject areas

  • Media Technology
  • Signal Processing

Cite this

De-Luxán-Hernández, S., Marpe, D., Schwarz, H., Muller, K., Wien, M., Ohm, J. R., & Wiegand, T. (2017). Block adaptive selection of multiple core transforms for video coding. In 2016 Picture Coding Symposium, PCS 2016 [7906349] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PCS.2016.7906349

Block adaptive selection of multiple core transforms for video coding. / De-Luxán-Hernández, Santiago; Marpe, Detlev; Schwarz, Heiko; Muller, Klaus; Wien, Mathias; Ohm, Jens Rainer; Wiegand, Thomas.

2016 Picture Coding Symposium, PCS 2016. Institute of Electrical and Electronics Engineers Inc., 2017. 7906349.

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

De-Luxán-Hernández, S, Marpe, D, Schwarz, H, Muller, K, Wien, M, Ohm, JR & Wiegand, T 2017, Block adaptive selection of multiple core transforms for video coding. in 2016 Picture Coding Symposium, PCS 2016., 7906349, Institute of Electrical and Electronics Engineers Inc., 2016 Picture Coding Symposium, PCS 2016, Nuremberg, Germany, 16/12/4. https://doi.org/10.1109/PCS.2016.7906349
De-Luxán-Hernández S, Marpe D, Schwarz H, Muller K, Wien M, Ohm JR et al. Block adaptive selection of multiple core transforms for video coding. In 2016 Picture Coding Symposium, PCS 2016. Institute of Electrical and Electronics Engineers Inc. 2017. 7906349 https://doi.org/10.1109/PCS.2016.7906349
De-Luxán-Hernández, Santiago ; Marpe, Detlev ; Schwarz, Heiko ; Muller, Klaus ; Wien, Mathias ; Ohm, Jens Rainer ; Wiegand, Thomas. / Block adaptive selection of multiple core transforms for video coding. 2016 Picture Coding Symposium, PCS 2016. Institute of Electrical and Electronics Engineers Inc., 2017.
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