Method and apparatus for inter-picture cost computation

摘要

A method and an apparatus for inter-picture cost computation are provided. The inter-picture cost computation apparatus includes an original difference calculation module, a before-compensation difference calculation module, an inter-picture cost computation module, and a compensation module. The original difference calculation module calculates original differences between first original pixels at the first frame time and second original pixels at the second frame time. The before-compensation difference calculation module calculates before-compensation differences between first compensated pixels at the first frame time and reconstructed pixels at the second frame time. The inter-picture cost calculation module calculates an inter-picture cost according to the sample adaptive offset (SAO) compensation value, the original differences, and the before-compensation differences. The compensation module compensates the reconstructed pixels according to the SAO compensation value when the inter-picture cost is a minimum.

主权项

1. An inter-picture cost computation method, comprising:
calculating original differences between a plurality of first original pixels at a first frame time and a plurality of second original pixels at a second frame time; calculating before-compensation differences between a plurality of first compensated pixels at the first frame time and a plurality of reconstructed pixels at the second frame time; calculating an inter-picture cost according to an SAO (Sample Adaptive Offset) compensation value, the original differences, and the before-compensation differences; and compensating the plurality of reconstructed pixels according to the SAO compensation value when the inter-picture cost is a minimum.