Robust encoded domain pixel decoding
AssigneesSony Corporation, Sony Electronics Inc.
InventorJames J. Carrig
Life of this patent
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Abstract
A method and apparatus for robust encoded domain pixel decoding is disclosed. In one embodiment, robust encoded domain pixel decoding includes receiving transform domain coefficients, and identifying erroneous coefficients. Then, for each erroneous pixel resulting from erroneous coefficients, a virtual tap is determined. For each virtual tap, transform domain coefficient dependencies are determined. A filter to estimate a value for the erroneous pixel is determined using the corresponding undamaged transform domain coefficient dependencies.
Claims15
A method for robust encoded domain pixel decoding comprising:
- receiving transform domain coefficients and corresponding error flags;
- specifying a virtual tap surrounding each pixel;
- determining transform domain coefficient dependencies corresponding to each virtual tap;
- and
- determining a filter to estimate a value for each pixel using the undamaged transform domain coefficients corresponding to the virtual tap.
An apparatus comprising:
- means for receiving transform domain coefficients and corresponding error flags;
- means for specifying a virtual tap surrounding each pixel;
- means for determining transform domain coefficient dependencies corresponding to each virtual tap;
- and
- means for determining a filter to estimate a value for each pixel using the undamaged transform domain coefficients corresponding to the virtual tap.
A computer readable medium having instructions which, when executed by a processing system, cause the system to:
- receive transform domain coefficients and corresponding error flags;
- specify a virtual tap surrounding each pixel;
- determine transform domain coefficient dependencies corresponding to each virtual tap;
- and
- determine a filter to estimate a value for each pixel using the undamaged transform domain coefficients corresponding to the virtual tap.
Dependencies are inferred from the claim text.