有限元法在拖拉机驾驶室声学设计中的应用

用有限元分析软件ＡＮＳＹＳ（５．２）计算了壁面无吸声材料和有吸声材料的的拖拉机驾驶室在实际行驶条件下的室内噪声响应，理论计算结果得到了试验测试结构的验证，表明ＡＮＳＹＳ有限元分析软件可用于拖拉机驾驶室声学的动态设计与分析。     

Super-Resolution Reconstruction of Image Sequence Using Multiple Motion Estimation Fusion

Super-resolution reconstruction algorithm produces a high-resolution image from a low-resolution image sequence. The accuracy and the stability of the motion estimation (ME) are essential for the whole restoration. In this paper, a new super-resolution reconstruction algorithm is developed using a robust ME method, which fuses multiple estimated motion vectors within the sequence. The new algorithm has two major improvements compared with the previous research. First, instead of only two frames, the whole sequence is used to obtain a more accurate and stable estimation of the motion vector of each frame; second, the reliability of the ME is quantitatively measured and introduced into the cost function of the reconstruction algorithm. The algorithm is applied to both synthetic and real sequences, and the results are presented in the paper.