Edge-selective intra coding

A method comprising:

• identifying a first input block from a first input frame from an input video stream;
• generating a first encoded block by:
• identifying a prediction block based on the first input block,
• generating a residual block based on a difference between the first input block and the prediction block,
• generating a transform block by transforming the residual block, the transform block including a plurality of transform coefficients, and
• generating a quantized block by quantizing the transform block using a transform domain quantization value;
• generating a first reconstructed block by decoding the first encoded block;
• determining a reconstruction error block based on a difference between the first input block and the first reconstructed block;
• identifying a second input block from the first input frame;
• determining a plurality of refined context pixels by:
• identifying a plurality of context pixels from the reconstruction error block,
• generating a plurality of encoded context pixels by quantizing the plurality of context pixels using a spatial domain quantization value,
• generating a plurality of reconstructed context pixels by decoding the plurality of encoded context pixels, and
• adding at least a portion of the reconstruction error block and the plurality of reconstructed context pixels;
• generating, by a processor in response to instructions stored on a non-transitory computer readable medium, a second encoded block by encoding the second input block based on the plurality of refined context pixels;
• including the second encoded block in an output bitstream;
• and
• transmitting or storing the output bitstream.

A method comprising:

• identifying a current input block from a first input frame from an input video stream;
• generating, by a processor in response to instructions stored on a non-transitory computer readable medium, a current encoded block by encoding the current input block, wherein encoding the current input block includes identifying a prediction block based on the current input block and a plurality of refined context pixels;
• including the current encoded block in an output bitstream;
• and
• transmitting or storing the output bitstream.