Decoding system and method for error correction with side information and correlation updater

A method of decoding error correcting information received from an encoding system as coded data representing an original image, the method comprising:

• generating a predicted image without using the received error correcting information;
• using the error correcting information and correlation information representing an assumed correlation between the predicted image and the original image to perform a multi-stage decoding process that corrects prediction errors in the predicted image;
• outputting a corrected image at each stage of the multi-stage decoding process;
• using the corrected image output in at least one stage of the decoding process to update the predicted image and obtain an updated predicted image;
• and
• updating the correlation information after at least one stage of the multi-stage decoding process to obtain updated correlation information and supplying the updated correlation information to the decoder for use in a following stage of the multi-stage decoding process.

A non-transitory machine readable tangible medium storing instructions executable by a computing device to decode error correcting information received from an encoding system as coded data representing an original image, the instructions including:

• instructions for generating a predicted image without using the received error correcting information;
• instructions for using the error correcting information and correlation information representing an assumed correlation between the predicted image and the original image to perform a multi-stage decoding process that corrects prediction errors in the predicted image and outputting a corrected image at each stage of the multi-stage decoding process;
• instructions for using the corrected image output in at least one stage of the decoding process to update the predicted image and obtain an updated predicted image;
• and
• instructions for updating the correlation information after at least one stage of the multi-stage decoding process to obtain updated correlation information and supplying the updated correlation information to the decoder for use in a following stage of the multi-stage decoding process.