METHOD, SYSTEM AND DEVICE FOR IMPROVING VIDEO QUALITY THROUGH IN-LOOP TEMPORAL PRE-FILTERING
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Accused Products
Abstract
A method, system and device are provided for pre-filtering device for filtering a video signal prior to digitally encoding. The method includes receiving at least one input picture and at least one reconstructed picture from an encoding process and performing an in-loop temporal filtering process using at least one input picture and at least one reconstructed picture from an encoding process to output a pre-filtered video signal for use in an encoding process. The result is enabling an encoding process to produce an output with increased temporal correlation between adjacent pictures regardless of the coding type, since the artifacts introduced by the encoding process are also considered by the process.
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Citations
42 Claims
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11. A method for a pre-filtering device to filter a video signal prior to digitally encoding, comprising:
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receiving at least one input picture; receiving at least one reconstructed picture from an encoding process; and performing an in-loop temporal filtering process using at least one input picture and at least one reconstructed picture from an encoding process to output a pre-filtered video signal for use in an encoding process, wherein picture statistics are applied in the in-loop temporal filtering process.
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22. A system for a pre-filtering device to filter a video signal prior to digitally encoding, comprising:
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means for receiving at least one input picture; means for receiving at least one reconstructed picture from an encoding process; and means for performing an in-loop temporal filtering process using at least one of an input picture and at least one reconstructed picture from an encoding process to output a pre-filtered video signal for use in an encoding process wherein picture statistics are applied in the in-loop temporal filtering process. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A pre-filtering device for filtering a video signal prior to digitally encoding the video signal, comprising:
an in-loop temporal filter having a first input for receiving at least one input picture and having another input for receiving at least one reconstructed picture from an encoding process, wherein the in loop temporal filter is configured to output a pre-filtered video signal for use in an encoding process, and wherein picture statistics are applied in the in-loop temporal filtering process. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
Specification