尾流边缘图像处理及压缩(英文)

来源 :西安工业大学学报 | 被引量 : 6次 | 上传用户：flysky30003

【摘要】

：

船舶尾流边缘图像处理及压缩编码研究可用于实现尾流识别与探测.文中利用Canny检测器对船舶尾流图像边缘化处理,得到了边缘图像;通过对尾流边缘图像进行抽样、拟合,得到了拟合曲线和对应的多项式曲线及其方程;进行了傅里叶分析,定量描述了边界形状,利用50%个傅里叶描述子来重构原来的尾流边缘图像,可得到一个近似而不改变基本形状的图像;通过对尾流边缘图像进行离散余弦变换压缩实验,在压缩率为56%条件下,压缩

【作者】

：

张建生崔红张永强常洋

【出处】

：

西安工业大学学报

【发表日期】

：

2011年07期

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

Preface to the special issue on seismoelectromagnetics:Earthquake-related phenomena,laboratory evide

The earthquake prediction is commonly recognized as one of the most difficult problems in natural science with globalization of the world and also one of the most important social issues concerning th

期刊

Statistical analysis of the ion density measured by the satellite DEMETER in relation with the seism

This paper is related to study of the ion density recorded by the low altitude satellite DEMETER. It will present ionospheric perturbations observed during large seismic events.As the ionosphere is hi

期刊

Anomaly of the ionospheric electron density close to earthquakes:Case studies of Pu'er and Wenc

The electron density recorded onboard the DEMETER satellite was analyzed to search for possible anomalies before earthquakes both in space and time.To distinguish pre-earthquake anomalies from the oth

期刊

Meshing effects of the 3-D FEM numerical modeling in seismo-electromagnetics:An application in selec

We investigated how density and quality of mesh around interest domain affect electromagnetic (EM) responses of 3D Earth layered media using finite element method(FEM).Effect of different mesh shapes

期刊

Two-step method to extract seismic microwave radiation anomaly:Case study of M_s8.0 Wenchuan earthqu

The satellite remote sensing has become a promising technique for detecting earthquake and fault activities.But it is still very difficult to exactly extract the earthquake anomaly from the complicate

期刊

Discussion on several important problems in earthquake-related electromagnetic disturbance monitorin

Earthquake-related electromagnetic observation aims at finding abnormal electromagnetic variation associated with earthquake possibly.The existing studies have proved that this method is,to a large ex

期刊

The earthquake-related disturbances in ionosphere and project of the first China seismo-electromagne

Based on the case studies and statistical analysis of earthquake-related ionospheric disturbances mainly from DEMETER satellite,ground-based GPS and ionosounding data,this paper summarizes the statist

期刊

Abnormally large short-term and impending earthquake geomagnetic anomaly implies a possibility of ea

The study found that strong magnetic anomalies repeatedly took place before big earthquakes. Based on geomagnetic record analysis results,we discussed a possible pattern of the magnetic anomalies prio

期刊

虚拟实验室动画研发技术探究

用二维动画技术实现虚拟现实三维动感视听效果的实验过程,这是对Flash动画技术的挑战和尝试。虚拟实验仪器设备的绘制形象逼真,达到了仿真的视觉效果,声音的添加烘托出虚拟实验动画过程的听觉感受,视听的双重感受把观众带进了清新明亮的虚拟实验室。

期刊

An analytical simulation technique for cone-beam CT and pinhole SPECT

This study was aimed at developing an efficient simulation technique with an ordinary PC.The work involved derivation of mathematical operators,analytic phantom generations,and effective analytical pr

期刊

尾流边缘图像处理及压缩(英文)

与本文相关的学术论文