System and method for improving decoder performance using quantization control

A system for generating encoded data, said system comprising:

• an input operative to receive a block of values;
• a quantization level generator operative to define a quantization level associated with said block of values;
• and
• a quantizer operative to quantize said block of values based on said quantization level and output a block of quantized coefficients;
• and wherein
• said quantization level is defined such that at least a predetermined number of said quantized coefficients in said block of quantized coefficients have a predetermined value;
• and
• said predetermined number is greater than or equal to one-half the number of said quantized coefficients in said block.

A non-transitory, electronically-readable storage medium having code embodied therein for causing an electronic device to:

• receive a block of values;
• define a quantization level associated with said block of values;
• and
• quantize said block of values based on said quantization level to produce a block of quantized coefficients;
• and wherein
• said quantization level is defined such that at least a predetermined number of said quantized coefficients in said block of quantized coefficients have a predetermined value;
• and
• said predetermined number is greater than or equal to one-half the number of said quantized coefficients in said block.

A system for generating encoded data, said system comprising:

• an input operative to receive a block of values;
• a quantizer operative to quantize said block of values based on said quantization level and output a block of quantized coefficients;
• and
• means for defining said quantization level such that, after quantization, at least a predetermined number of said quantized coefficients in said block of quantized coefficients have a predetermined value;
• and
• wherein said predetermined number is greater than or equal to one-half the number of said quantized coefficients in said block.