煤炭设备的状态监测与故障诊断技术的应用

由于我国综采设备起步较晚和人员素质的影响,煤炭设备处于低速度发展阶段,但随着我国现代化煤炭产业的建设和国外先进技术的引进,我国的煤炭生产设备有了质的飞跃。本文即是在探讨煤炭设备的状态监测与故障诊断技术的应用。     

Improved Adaptive Interpolation Filter for H.264/AVC

Motion compensation with adaptive interpolation filters (AIF) was developed to compensate for temporary varieties in the aliasing of video signals and improve the coding efficiency. The AIF achieves better RD performance than common static interpolation filtering by exploiting the statistics in the reference frames’ local auto-correlation and the local cross-correlation between the current encoding frame and the reference frames. This paper presents an interpolation filter buffering structure that derives the current encoding frame’s interpolation filters from the filters of previous frames. The number of encoding bits for the filter coefficients is reduced by encoding only the differences between the current filter coefficients and the corresponding buffered filter coefficients. Experimental results show that in comparison with the AIF in the current "key technical area" (KTA) reference software, this interpolation filter buffering structure further improves all the test sequences (with up to 2.87% bit rate saving) with negligible computational increase.