Current multi-view video coding(MVC) reference model in joint video team(JVT) does not provide efficient rate control schemes.This paper presents a rate control algorithm for MVC by improving the quadratic rate-distortion(R-D) model.We reasonably allocate bit-rate among views based on the correlation analysis.The proposed algorithm consists of three levels to control the rate bits more accurately,of which the frame layer allocates bits according to the frame complexity and the temporal activity.Extensive experiments show that the proposed algorithm can control the bit rate efficiently.
We present an unequal decoding power allocation(UDPA) approach for minimization of the receiver power consumption subject to a given quality of service(QoS),by exploiting data partitioning and turbo decoding.We assign unequal decoding power of forward error correction(FEC) to data partitions with different priority by jointly considering the source coding,channel coding and receiver power consumption.The proposed scheme is applied to H.264 video over additive white Gaussion noise(AWGN) channel,and achieves excellent tradeoff between video delivery quality and power consumption,and yields significant power saving compared with the conventional equal decoding power allocation(EDPA) approach in wireless video transmission.
