Video Compression Using A Semi-Hexagonal Shaped Absolute Moment Block Truncation Coding

In this paper, a new predictive coding algorithm for video compression called semi-hexagonal absolute moment block truncation coding (SH-AMBTC) is proposed. It enjoys better objective and subjective qualities over the standard square shaped AMBTC. This technique based on the prediction of the bit-map of the middle frames in a sequence from the bit-map of the end frames (the first and the last frames in the group). The new algorithm adds no complexity to the existing standard. The proposed algorithm achieves a lower MSE than the AMBTC as well as reduces the blocking effect. The simulation results show that this significant improvement in the visual quality is achieved at an average MSE of (45.5), which is lower than that of AMBTC (48.4). On the average the MSE can be reduced by 6% less than that of AMBTC at the same bit rate.