18514047. METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA WITH SUB-PIXEL MOTION VECTOR REFINEMENT simplified abstract (CANON KABUSHIKI KAISHA)

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METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA WITH SUB-PIXEL MOTION VECTOR REFINEMENT

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Guillaume Laroche of SAINT AUBIN D'AUBIGNE (FR)

Patrice Onno of RENNES (FR)

Jonathan Taquet of TALENSAC (FR)

Christophe Gisquet of ACIGNE (FR)

METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA WITH SUB-PIXEL MOTION VECTOR REFINEMENT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18514047 titled 'METHOD AND APPARATUS FOR ENCODING OR DECODING VIDEO DATA WITH SUB-PIXEL MOTION VECTOR REFINEMENT

Simplified Explanation

The patent application describes a method and device for encoding or decoding video data, specifically focusing on a motion vector derivation mode called frame-rate up conversion mode (FRUC) merge mode. The refinement step in this mode aims to improve the accuracy of motion vectors at the sub-pixel level by evaluating different sub-pixel positions around the obtained motion vector.

  • The invention improves the refinement step in the FRUC merge mode for encoding video data.
  • It considers characteristics of the matching type and/or the signal inside the templates to enhance coding efficiency.
  • The refinement process involves evaluating various sub-pixel positions around the motion vector based on different patterns.

Potential Applications

  • Video encoding and decoding technologies
  • Multimedia streaming services
  • Video surveillance systems

Problems Solved

  • Enhancing accuracy of motion vectors in video encoding
  • Improving coding efficiency in video data processing
  • Optimizing sub-pixel level motion vector derivation

Benefits

  • Increased video quality in encoding and decoding processes
  • Enhanced compression efficiency for video data
  • Improved performance in motion estimation and compensation techniques


Original Abstract Submitted

A method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode. In FRUC merge mode, the derivation process comprises a refinement step to increase the accuracy of the obtained motion vector at the sub-pixel level. This process involves the evaluation of different sub-pixel position around the obtained motion vector according to different patterns. The present invention has been devised to improve the known refinement step. It aims at improving the coding efficiency by considering the characteristics of the matching type and/or the signal inside the templates.