Low-Complexity Geometric Inter-Prediction for Versatile Video Coding

Max Blaser, Han Gao, Semih Esenlik, Elena Alshina, Zhijie Zhao, Christian Rohlfing, Eckehard Steinbach

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations


Non-rectangular block partitioning is a well-known method for improved inter-picture prediction in video coding, enabling better spatial adaptation to the signal properties. This contribution presents the most recent proposal of geometric inter-prediction (GIP) made to the Versatile Video Coding (VVC) standardization activity led by the Joint Video Experts Team (JVET). Implemented in the latest test model VTM-5.0 and evaluated according to the JVET Common Test Conditions, the proposed low-complexity GIP scheme provides objective luma BD-rate reductions of 0.22 % for random access and 0.44 % for low-delay test cases at 7% encoder runtime increase and negligible decoder runtime increase. The coding gain is provided by non-triangular partitioned blocks and in the presence of multiple other VVC coding tools. Furthermore, BD-rate reductions of 2.58 % and 2.78 % can be achieved specifically for pure screen content by employing an adaptive blending filter.

Original languageEnglish
Title of host publication2019 Picture Coding Symposium, PCS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728147048
StatePublished - Nov 2019
Event2019 Picture Coding Symposium, PCS 2019 - Ningbo, China
Duration: 12 Nov 201915 Nov 2019

Publication series

Name2019 Picture Coding Symposium, PCS 2019


Conference2019 Picture Coding Symposium, PCS 2019


  • geometric block partitioning
  • motion compensation
  • video coding


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