Temporal Prediction Structure Aware Temporal Filter
Disclosed are a system, method, apparatus, and computer readable media containing instructions for pre-filtering one or more pictures of a prediction structure. In an exemplary embodiment, a system includes an input for receiving the one or more pictures and a pre-filter, operatively coupled to the input and receiving the one or more pictures. The pre-filter can include a prediction position determining module for determining a position of at least one picture in the prediction structure, a context memory for storing determined position information, and a filter module for selecting a filter context based on the determined position and using the selected filter context to filter the at least one picture.
1 . A method of pre-filtering one or more pictures of a prediction structure, comprising
a) determine a position of at least one picture in the prediction structure;
b) selecting a filter context based on the determined position; and
c) using the selected filter context to filter the at least one picture.
2 . The method of claim 1 , wherein the filter context includes a filtered picture.
3 . The method of claim 1 , wherein the filter context includes a filter strength.
4 . The method of claim 1 , wherein the filter context includes a filter type.
5 . The method of claim 1 , wherein the filter includes a temporal filter.
6 . The method of claim 1 , wherein the filter includes a spatial filter.
7 . The method of claim 1 , wherein the filter context includes pixel strength information, and wherein the strength of the filter for a given pixel is adjusted based on at least one criterion.
8 . A system for pre-filtering one or more pictures of a prediction structure, comprising
a) an input for receiving the one or more pictures
b) a pre-filter, operatively coupled to the input and receiving the one or more pictures therefrom, comprising
a prediction position determining module for determining a position of at least one picture in the prediction structure,
a context memory, operatively coupled to the prediction position determining module, for storing determined position information, and
a filter module, operatively coupled to the context memory, for selecting a filter context based on the determined position and using the selected filter context to filter the at least one picture.
9 . The system of claim 8 , wherein the filter module is adapted to filter using a filtered picture.
10 . The system of claim 8 , wherein the filter module is adapted to filter using a filter strength.
11 . The system of claim 8 , wherein the filter module is adapted to filter using a temporal filter.
12 . The system of claim 8 , wherein the filter module is adapted to filter using a spatial filter.
13 . The system of claim 8 , wherein the filter module is adapted to filter pixel strength information, and wherein the strength of the filter for a given pixel is adjusted based on at least one criterion.
14 . The system of claim 8 , further comprising a video encoder, operatively coupled to the pre-filter and receiving the at least one filtered picture therefrom, for encoding the at least one filtered picture.
15 . A computer readable media having computer executable instructions included thereon for performing a method of pre-filtering one or more pictures of a prediction structure, comprising
a) determine a position of at least one picture in the prediction structure;
b) selecting a filter context based on the determined position; and
c) using the selected filter context to filter the at least one picture.
16 . The media of claim 15 , wherein the filter context includes a filtered picture.
17 . The media of claim 15 , wherein the filter context includes a filter strength.
18 . The media of claim 15 , wherein the filter context includes a filter type.
19 . The media of claim 15 , wherein the filter includes a temporal filter.
20 . The media of claim 15 , wherein the filter includes a spatial filter.
21 . The media of claim 15 , wherein the filter context includes pixel strength information, and wherein the strength of the filter for a given pixel is adjusted based on at least one criterion.