Lossless compression of data based on a modified differential pulse code modulation (DPCM) scheme

摘要

A system for decoding data based on a hybrid approach includes a processor and a memory storing instructions that are executable by the processor. The operations include determining a first output based on a magnitude in difference between an initial sample and a previous sample, where the first output includes a first number of bits. The operations also include determining a second output based on a magnitude in difference between the initial sample and a predicted sample, where the second output includes a second number of bits. The operations also include comparing the first output with the second output to determine if the first number of bits is greater than the second number of bits. Finally, the operations include selecting one of the first output and the second output as the final output, wherein selection is based on the final output being expressed in the least number of bits.

主权项

1. A system for decoding data based on a hybrid approach, comprising:
a processor; and a memory storing instructions that are executable by the processor to perform operations comprising:
determining a first output based on a magnitude in difference between an initial sample and a previous sample, wherein the first output includes a first number of bits;determining a second output based on a magnitude in difference between the initial sample and a predicted sample, wherein the second output includes a second number of bits;comparing the first output with the second output to determine if the first number of bits is greater than the second number of bits; andselecting one of the first output and the second output as the final output, wherein selection is based on the final output being expressed in the least number of bits.