Learned low-complexity adaptive quantization for video compression

A device for encoding video data, the device comprising:

• a memory;
• processing circuitry in communication with the memory, the processing circuitry being configured to:
• determine a set of quantization offset parameters for a group of scaled transform coefficients for a block of video data based on side information associated with the block of video data;
• quantize the group of scaled transform coefficients for the block of video data to generate quantized transform coefficients for the block of video data based at least in part on the set of quantization offset parameters;
• and
• generate an encoded video bitstream based at least in part on the quantized transform coefficients for the block of video data.

An apparatus for encoding video data, the apparatus comprising:

• means for determining a set of quantization offset parameters for a group of scaled transform coefficients for a block of video data based on side information associated with the block of video data;
• means for quantizing the group of scaled transform coefficients for the block of video data to generate quantized transform coefficients for the block of video data based at least in part on the set of quantization offset parameters;
• and
• means for generating an encoded video bitstream based at least in part on the quantized transform coefficients for the block of video data.

A computer-readable storage medium having stored thereon instructions that, when executed, cause one or more processors to:

• determine a set of quantization offset parameters for a group of scaled transform coefficients for a block of video data based on side information associated with the block of video data;
• quantize the group of scaled transform coefficients for the block of video data to generate quantized transform coefficients for the block of video data based at least in part on the set of quantization offset parameters;
• and
• generate an encoded video bitstream based at least in part on the quantized transform coefficients for the block of video data.