Optimized Design of Intra Prediction Algorithm on Stream Architecture
Jian Bo Fu · 2010
Multi-mode intra prediction in H.264 is computationally expensive.For efficient implementation to reduce computing pressure,according to computation intensity and data parallelism in intra prediction,a multi-group intra prediction stream algorithm suited for imagine stream architecture is proposed based on stream execution model.In addition,strip-mining technology is applied into streaming implementation to design an optimized strip-mined multi-group intra prediction stream algorithm.Experimental results show that H.264 intra coder using optimized stream algorithm processes 1280×720 HD video at 45.9fps,satisfying the requirements of real-time video applications.