Method and device for processing prediction information for encoding or decoding at least part of an image

A method of processing prediction information for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated prediction data defining at least one predictor for prediction of the elementary unit, the method comprising for a processing block of the enhancement layer:

• obtaining prediction data of at least a co-located elementary unit of the reference data, the prediction data defining first predictors;
• and
• generating, from said prediction data obtained, further predictors for prediction of the current processing block.
• wherein the prediction data comprises motion data indicative of the location of the corresponding predictor in the video data and a motion vector of the prediction data is used to generate at least two predictors of the further predictors by application of at least two different respective motion compensation processes.

A method of processing prediction information for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated prediction data defining at least one predictor for prediction of the elementary unit, the method comprising for a processing block of the enhancement layer:

• obtaining prediction data of at least a co-located elementary unit of the reference data, the prediction data defining first predictors;
• and
• generating, from said prediction data obtained, further predictors for prediction of the current processing block.
• wherein at least one filtering process is applied to one or more predictors of the first predictors to obtain the further predictors

A device for processing prediction information for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated prediction data defining at least one predictor for prediction of the elementary unit, the device comprising:

• a prediction data extractor for obtaining, for a processing block of the enhancement layer, prediction data of at least a co-located elementary unit of the reference data, the prediction data defining first predictors the prediction data comprising motion data indicative of the location of the corresponding predictor in the video data;
• and
• a predictor data generator for generating, from said prediction data obtained further predictors for prediction of the current processing block.
• wherein the predictor data generator is configured to generate at least one set of unidirectional motion data from bidirectional motion data for the further predictors in the case where the motion data is bidirectional comprising two motion data set.

A device for processing prediction information for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated prediction data defining at least one predictor for prediction of the elementary unit, the device comprising:

• a prediction data extractor for obtaining, for a processing block of the enhancement layer, prediction data of at least a co-located elementary unit of the reference data, the prediction data defining first predictors;
• and
• a predictor data generator for generating, from said prediction data obtained, further predictors for prediction of the current processing block;
• wherein the prediction data comprises motion data indicative of the location of the corresponding predictor in the video data;
• and the prediction data generator is configured to obtain a motion vector of said prediction data to generate at least two predictors of the further predictors by application of at least two different respective motion compensation processes.

A device for processing prediction information for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated prediction data defining at least one predictor for prediction of the elementary unit, the device comprising:

• a prediction data extractor for obtaining, for a processing block of the enhancement layer, prediction data of at least a co-located elementary unit of the reference data, the prediction data defining first predictors;
• a predictor data generator for generating, from said prediction data obtained, further predictors for prediction of the current processing block;
• and
• a filter for applying at least one filtering process to one or more predictors of the first set of predictors to obtain the further predictors.