Prediction-error filter for images

1. What are prediction error filters?
2. What is the function of prediction filter in Dpcm?
3. What is prediction filter in digital communication?

What are prediction error filters?

Application of a prediction-error filter removes the predictable information from a dataset, leaving the unpredictable information, that is, the prediction error.

What is the function of prediction filter in Dpcm?

The DPCM system is suitable for digitalization and transmission of highly correlated signals. This qual- ity of the system is provided by a prediction filter in the negative feedback loop. The prediction filter esti- mates the actual sample value based on one or more previous samples of input (source) signal.

What is prediction filter in digital communication?

Linear prediction is a mathematical operation where future values of a discrete-time signal are estimated as a linear function of previous samples. In digital signal processing, linear prediction is often called linear predictive coding (LPC) and can thus be viewed as a subset of filter theory.