Methods and apparatus for concealing corrupted blocks of video data
View Patent ↗Methods and apparatus for concealing corrupted blocks of streaming data are disclosed. It is determined whether a subdivision of the streaming data is a corrupt subdivision. The corrupt subdivision is concealed using a previously reconstructed or concealed subdivision in a manner that does not require information from pairs of direct neighbor subdivisions that have not been previously reconstructed or concealed.
1. A method for error concealment of corrupted streaming data, comprising:
using one or more processors to determine whether a subdivision of the streaming data is a corrupt subdivision;
using one or more processors to conceal the corrupt subdivision by replacing a corrupt subdivision of a field coded pair of subdivisions containing the corrupt subdivision and another subdivision with the other subdivision of the field-coded pair.
2. The method of claim 1 , wherein corrupt subdivision is a bottom subdivision of a field-coded pair of subdivisions, and one or more processors conceal the subdivision by replacing the corrupt subdivision with a top subdivision of the field-coded pair.
3. An apparatus for error concealment of corrupted streaming data, comprising:
a processor module having one or more processors;
a memory operably coupled to the processor module; and
a set of processor executable instructions adapted for execution by the processor module, the processor executable instructions including:
one or more instructions that when executed on the processor module determine whether a subdivision of the streaming data is a corrupt subdivision; and
one or more instructions that when executed on the processor module conceal the corrupt subdivision by replacing a corrupt subdivision of a field coded pair having another subdivision with the other subdivision of the field-coded pair.
4. The apparatus of claim 3 wherein the processor module includes two or more processor elements.
5. The apparatus of claim 3 wherein the processor module is a cell processor having one or more synergistic processor elements (SPE), wherein each SPE includes a synergistic processor unit (SPU) and a local store.
6. The apparatus of claim 5 wherein the processor is a SPE and the memory is the local store of the SPE.
7. A non-transitory processor readable medium having embodied therein processor readable instructions for implementing a method for error concealment of corrupted streaming data, the method comprising:
using one or more processors to determine whether a subdivision of the streaming data is a corrupt subdivision;
using one or more processors to conceal the corrupt subdivision by replacing a corrupt subdivision of a field coded pair of subdivisions containing the corrupt subdivision and another subdivision with the other subdivision of the field-coded pair.
8. A method for error concealment of corrupted streaming data, comprising:
using one or more processors to determine whether a subdivision of the streaming data is a corrupt subdivision;
using one or more processors to conceal the corrupt subdivision by either (a) replacing a corrupt subdivision of a field coded pair of subdivisions containing the corrupt subdivision and another subdivision with the other subdivision of the field-coded pair; or (b) locating a matching subdivision in a previously reconstructed reference picture and replacing the corrupt subdivision with the matching subdivision, wherein the corrupt subdivision is a bottom subdivision of a field-coded pair of subdivisions, and one or more processors conceal the subdivision by replacing the corrupt subdivision with a top subdivision of the field-coded pair.
9. The method of claim 8 , wherein the reference picture is a different reference picture than a picture containing the corrupt subdivision.
10. The method of claim 8 , wherein the corrupt subdivision is a predictive subdivision, and locating the matching subdivision includes applying a motion vector of a co-located subdivision in the reference picture to the corrupt subdivision.