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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The study of mapping relation of aeroplane complex motion and image movement and compensation technique (EI CONFERENCE) 会议论文 2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China Wei Z.; Wang Y.-Y.; Xue W.-Q.; Dai M. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 In order to solve the problem of image blurring due to the image motion which results from the aircraft's motion  attitude changes  and the relative motion of the camera and aircraft firstly  we install linear displacement transducer on the four shock absorbers. By analyzing the displacement values  the geometrical relationship between the camera and the aircraft is acquired  then relative motion amount between the object and the aircraft is obtained according to the motion and attitude changes. After that  making use of geometrical relationship  we can calculate the displacement variation of pixels within the camera exposure time. Thereafter  taking consider variable motion and non-linear motion as uniform motion in a straight line at the moment of imaging  then the model of the blurring image can be established according to the displacement variation of pixels within the camera exposure time  and fuzzy point spread function in the two-dimensional movement is built. By using Wiener filtering method with the optimal window  the image blurring is eliminated in aerial imaging system. Practice proved that this method can effectively eliminate the image blurring in the aerial imaging system. 2010 IEEE.   finite element mesh generation over intersecting curved surfaces by tracing of neighbours 期刊论文 FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2005, 卷号: 41, 期号: 4, 页码: 351-370 Lo SH; Wang WX 收藏  |  浏览/下载：7/0  |  提交时间：2011/07/28 triangular surface intersection  neighbour tracing  local meshing   an algorithm for the intersection of quadrilateral surfaces by tracing of neighbours 期刊论文 COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2003, 卷号: 192, 期号: 20-21, 页码: 2319-2338 Lo SH; Wang WX 收藏  |  浏览/下载：17/0  |  提交时间：2011/07/29 quadrilateral  triangle  surface  intersection  neighbour tracing