US Patent Application 18223999. INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES simplified abstract
Contents
INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES
Organization Name
Microsoft Technology Licensing, LLC
Inventor(s)
INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES - A simplified explanation of the abstract
This abstract first appeared for US patent application 18223999 titled 'INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES
Simplified Explanation
The patent application describes innovations in intra-picture prediction with multiple candidate reference lines available.
- Intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block.
- This improves the effectiveness of intra-picture prediction when the adjacent reference line has capture noise, quantization error, or significantly different values due to occlusion.
- Innovations include intra-picture prediction with multiple candidate reference lines available, encoding/decoding of reference line indices using prediction, filtering of reference sample values, residue compensation, weighted prediction, mode-dependent padding to replace unavailable reference sample values, using in-loop-filtered reference sample values, encoder-side decisions for selecting reference lines, and post-filtering of predicted sample values.
Original Abstract Submitted
Innovations in intra-picture prediction with multiple candidate reference lines available are described herein. For example, intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block. This can improve the effectiveness of the intra-picture prediction when the reference line of sample values that is adjacent the current block includes significant capture noise, significant quantization error, or significantly different values (compared to the current block) due to an occlusion. Innovations described herein include, but are not limited to, the following: intra-picture prediction with multiple candidate reference lines available; encoding/decoding of reference line indices using prediction; filtering of reference sample values; residue compensation; weighted prediction; mode-dependent padding to replace unavailable reference sample values; using in-loop-filtered reference sample values; encoder-side decisions for selecting reference lines; and post-filtering of predicted sample values.
