| 快速Hartley变换及其在图象复原中的应用 |
| |
| 引用本文： | 曾文庆,李秋莎.快速Hartley变换及其在图象复原中的应用[J].天文研究与技术,1993(3). |
| |
| 作者姓名： | 曾文庆 李秋莎 |
| |
| 作者单位： | 中国科学院云南天文台，中国科学院云南天文台 昆明 650011，昆明 650011 |
| |
| 摘 要： | 本文把快速Hartley变换引入到天文数据处理中,提出了计算Cells坐标的公式,编制了FHT算法程序。FHT与Cooley—Tukey的FFT相似,但FHT是实变换,不存在复运算,因此比FFT快得多。利用DHT与离散Fourier变换(DFT)的关系,DFT可以由FHT求出。FHT将广泛地用于谱分析,信号处理,图像处理等领域。
|
| 关 键 词： | 图象复原 计算方法 |
Fast Hartley Transform and Its Application to the Image Recontruction |
| |
| Zeng Wenqing,Li Qiusha.Fast Hartley Transform and Its Application to the Image Recontruction[J].Astronomical Research & Technology,1993(3). |
| |
| Authors: | Zeng Wenqing Li Qiusha |
| |
| Abstract: | The Fast Hartley Transform(FHT)is firstly introduced to the astronomical data processing and the FHT Algorithm routine is given for computing the Discrete Hartley Transform(DHT).FHT is similiar to Cooley-Tukey's FFT,but the former is much faster than the latter.The Discrete Fourier Transform(DFT)can be derived from FHT by means of the relationship between DFT and DHT.Therefore,FHT will be widely applied to the spectral analysis,the calculation of the correlation function and convolution and the image processing. |
| |
| Keywords: | Image reconstruction Method of reduction |
| 本文献已被 CNKI 等数据库收录！ |
|
