ADAPTIVE CODING OF A PREDICTION ERROR IN HYBRID VIDEO CODING

摘要

The present invention relates to a method for coding a video signal using hybrid coding, comprising: reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal, deciding whether to transform the prediction error signal into the frequency domain, or to maintain the prediction error signal in the spatial domain for encoding.

主权项

1. A method for coding a video signal using hybrid coding, the method comprising:
reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal, transforming the prediction error signal into a transformed signal in the frequency domain, scalar quantizing the transformed signal into a quantized transformed signal, scalar quantizing the prediction error signal into a quantized prediction error signal, deciding whether to encode the quantized transformed signal, or encode the quantized prediction error signal in the spatial domain, encoding the quantized transformed signal in the frequency domain in response to deciding to encode the quantized transformed signal, and encoding the quantized prediction error signal in the spatial domain in response to deciding to encode the quantized prediction error signal.