Data Compression of Engineering Curve Based on Non-Uniform Cubic B-Splines Fitting

摘要：

In the water conservancy and hydropower engineering, it is very important for the lectotype design of hydraulic turbine to acquire the mathematic description of the engineering curve exactly in order to get the vectorization of all operating mode parameter. A data compression was presented that based on the non-uniform cubic B-spline fitting algorithm for ordered data points obtained by the vectorization tracking of the curve. One pixel, the minimum unit of the computer screen, was taken as the error evaluation. The fitting error was controlled by self-adaptive addition of new nodes. It has achieved the data compression after the curve vectorization, and offered credible parameter assurance for lectotype design.

关键词： non-uniform cubic B-spline fitting reversible compression one pizel error vector data

作者: Li Li Rongsheng Zhang Na Li Shengling Zhang

作者单位: College of Water Conservancy and Hydropower Eng,Hohai University,Nanjing 210098,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3359-3363

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）