LÜ,Xi-kui,YI Si-rong,et al.The Research of DEM Compression Based on Multi-band Wavelet Technology[J].Research of Soil and Water Conservation,2007,14(06):125-127.
基于M进制小波技术的DEM压缩研究
- Title:
- The Research of DEM Compression Based on Multi-band Wavelet Technology
- Keywords:
- multi-band wavelet; wavelet transform; DEM; data compression
- 分类号:
- TP391
- 摘要:
- 数字高程模型是一种应用十分广泛的地形模型，由于其数据量极其庞大，如何实现其高效压缩一直是国内外计算机研究应用的重要课题。多进制小波是近几年刚发展的小波理论的一个新分支，对多进制小波技术在DEM数据压缩中的应用进行了了深入研究，给出了DEM数据多进制小波压缩算法、程序及其实验结果。实验结果表明，该方法与二进制小波相比，具有更高的压缩比，优于多次利用二进制小波压缩的精度。
- Abstract:
- DEM is a very wide range application of terrain model, but due to its mass data, how to achieve high efficiency compression application has been an important topic.Multi-band wavelet is a new branch of developing wavelet theory in recent years.The thesis studies the multi-band wavelet data compression technology in the DEM application and gives Multi-band wavelet compression algorithm, procedures in DEM and the results of experiments.The experimental results show that this method is compared with binary wavelet, with a higher compression ratio, using binary wavelet compression and the accuracy is better than many.
参考文献/References:
[1] 程正兴.小波分析算法与应用[M].西安:西安交通大学出社, 1998.
[2] 朱长青.小波分析理论与影像分析[M].北京:测绘出版社, 1998.
[3] 张华军.虚拟地形环境及其应用原型[D].郑州:解放军测绘学院, 1997.
[4] 孙颀或.多进制小波的构造[R].杭州:浙江大学数学所, 1996.
[5] 李小春, 陈鲸.多进制小波变换的快速构造及在遥感图像融合中的实现[J].计算机工程与应用, 2004 (7):32-34.
[6] 张立强, 杨崇俊, 刘冬林.基于M进制小波的视点相关多分辨率地形模型的简化[J].系统仿真学报, 2004, 16 (9):1970-1974.
相似文献/References:
[1]刘东,付强.基于小波变换的三江平原井灌区主汛期降水序列多时间尺度分析[J].水土保持研究,2008,15(06):42.
LIU Dong,FU Qiang.Multi-Time Scales Analysis of Main Flood Season Precipitation Series Based on Wavelet Transform in Area of Well-Irrigation in Sanjiang Plain[J].Research of Soil and Water Conservation,2008,15(06):42.
[2]熊亚兰,王昌全,张科利,等.北盘江流域降雨量和径流量年际变化研究[J].水土保持研究,2010,17(05):30.
XIONG Ya-lan,WANG Chang-quan,ZHANG Ke-li.Periodic Changes of the Annual Precipitation and Annual Natural Runoff in Beipan River Watershed[J].Research of Soil and Water Conservation,2010,17(06):30.
[3]李春静,徐达.基于改进小波变换的地物类型提取研究[J].水土保持研究,2010,17(05):195.
LI Chun-jing,XU Da.Study on the Extraction of Land Coverage Type Based on Improved Wavelet Transform[J].Research of Soil and Water Conservation,2010,17(06):195.
[4]潘娅英,骆月珍,王亚男,等.新安江流域降水、径流演变特征分析[J].水土保持研究,2018,25(06):121.
PAN Yaying,LUO Yuezhen,WANG Yanan,et al.Characteristics of Evolution of Precipitation and Runoff in Xin’An River Basin[J].Research of Soil and Water Conservation,2018,25(06):121.
备注/Memo
收稿日期:2006-1-19。
基金项目:国家自然科学基金资助项目（50278082）；西南交通大学博士生创新基金资助项目
作者简介:吕希奎（1976- ），男，辽宁葫芦岛人，博士研究生，主要从事虚拟环境遥感铁路选线研究。