Stable Rate of Video Stream in Small Size Screen Based on DCT Coding Quadratic I nterpolation Optimization
Zhanwei Song · Journal of Jilin University · 2012
The size of the screen for popular mobile phones are small currently. In order to maintain the clear video stream without fluctuation,on the basis of the intra prediction encoding,an improved quadratic interpolation of DC T(Discrete Cosine Transform) coding optimization algorithm is proposed.Based on intra predi ction coding of DCT mechanism,the quadratic interpolation using DCT coding can make a constant stream,make the small size of the screen blocking reduce d,and make the video stream enhance clarity while maintaining the speed stabili ty of the image.Experimental results show that traditional DCT transform in the small size of the screen block effects are more obvious,and coding is more com plex.The DCT coding algorithm quadratic interpolation makes the image significa ntly clear,and also maintain a constant stream.