Adaptive predictive encoding
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsErik NORVELL, Fredrik JANSSON
Life of this patent
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Abstract
A method performed in an encoder for selecting a coding mode for a current frame includes obtaining bit rates for absolute coding and predictive coding. The method includes calculating a bit rate difference based on the bit rates obtained. The method includes low-pass filtering the bit rate difference. The method includes selecting a coding mode based on the bit rate difference, the low-pass filtered bit rate difference, and a predictive mode counter.
Claims27
A method performed in an encoder for selecting a coding mode for a current frame, the method comprising:
- obtaining bit rates for absolute coding and predictive coding;
- calculating a bit rate difference based on the bit rates obtained;
- low-pass filtering the bit rate difference;
- and
- selecting a coding mode based on the bit rate difference, the low-pass filtered bit rate difference, and a predictive mode counter.
An encoder for selecting a coding mode for a current frame, the encoder adapted to perform operations comprising:
- obtaining bit rates for absolute coding and predictive coding;
- calculating a bit rate difference based on the bit rates obtained;
- low-pass filtering the bit rate difference;
- and
- selecting a coding mode based on the bit rate difference, the low-pass filtered bit rate difference, and a predictive mode counter.
27-36. (canceled)
Dependencies are inferred from the claim text.