DCT compression using Golomb-Rice coding

Details DCT compression using Golomb-Rice coding DCT compression using Golomb-Rice coding

2006-04-18

2006-04-18

Lee, Young (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07031390

ABSTRACT:
An apparatus and method to encode the run-lengths and amplitude of the quantized DCT coefficients in a lossless manner is used to achieve compression. Specifically, Golomb-Rice coding is used to encode both zero runs and non-zero amplitudes of the DCT coefficients after quantization. It is found that the use of a scheme taking advantage of an exponential distribution of data, such as Golomb-Rice coding, allows for higher coding efficiencies than alternate schemes.

REFERENCES:
patent: 5452104 (1995-09-01), Lee

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