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- If the raw data include the navigation information, the geometric distortions can be corrected from it, otherwise, the attitude of vehicle can be inferred from the sonar image. 鉴于波束展宽效应对远场目标造成的拖尾效应,论述了对拖尾效应使用的去卷积的改正算法。
- This paper proposed a new type of feature extraction arithmetic for texture image, based on parametrical log polar translation.This arithmetic is robust to geometric distortions. 摘要提出一种细化参数的对数极坐标变换图像纹理特征提取算法,可以有效地消除旋转、缩放和平移等几何形变的影响。
- Experimental results indicate that the presented scheme is transparent and robust to significant volumetric distortions (including additive noise, low-pass filtering and lossy compression) and a part of geometric distortions. 实验表明,算法具有良好的不可见性,对一些常见的攻击(如高斯噪声、低通滤波、有损压缩等)和部分几何攻击(剪切)具有较好的鲁棒性。
- It's to say that geometric distortion may be produced in test images, which would bring great effect on recognition results. 几何失真将对于图像识别的结果带来很大的影响。
- But, most of traditional digital watermarking schemes is normally not to resist both geometric distortion and signal processing attacks well. 但是,大多数传统的浮水印方法,通常无法有效的同时抵抗几何扭曲跟信号处理的攻击。
- Experimental results show that our algorithm reduces the geometric distortion effectively and ensures the validity of the conformal mapping. 实验结果表明,该算法通过优化切割线和参数域边界有效地降低了三角形形状扭曲,并保证了参数化结果的合法性。
- Finally the digital high-resolution picture transmission data (HRPT) and the automatic picture transmission data (APT), in which image geometric distortion has been correctel, are outputed. 最终输出数字量高分辨率图像传输资料HRPT和经图像几何畸变校正的自动图象传输资料APT。
- How dare he distort the facts so brazenly! 他怎么敢如此肆无忌惮地歪曲事实!
- Study on the robustness based on time and geometric distortion is a topic and a difficult point of digital watermark. This paper analyzes this phenomenon and proposes several countermeasures. 对时间和几何失真的鲁棒性的研究是数字水印技术当前研究的主题和难题,文章提出了解决这一难题的几种方法,并对这些方法进行了比较分析,得出结论,同时对这一难题提出展望。
- For ocular fundus images (OFIs), geometric distortion due to taking pictures at oblique visuai points and gray level distortion due to leakage of fluorescein and so on are almost unavoidable. 对于眼底图像,由于不在正视点取像造成的几何畸变和由于荧光素从血管壁渗漏等造成的灰度畸变,几乎是不可避免的。
- The results showed that images from gyroplane exhibited significant geometric distortion, and the precision of the corrected images can satisfy the requirements in precision agriculture. 研究结果表明,旋翼无人机所获得图像几何畸变明显,经几何纠正后,所获得的田块信息精度能满足精准农业的要求。
- An information collecting technology based on unmanned gyroplane was trially tested.The characteristics of geometric distortion from acquired images and their correction methods was introduced. 摘要基于旋翼无人机遥感平台信息采集的试探性研究,介绍了获得图像几何畸变特征及其纠正方法。
- Using this invariability,the geometrical distortion is first retrieved. 利用该不变性,可以较好地矫正几何形变。
- Not situated at or in the geometric center. 离心的不位于或在几何中心的
- An Efficient Geometric Distortions Correction Arithmetic for Color Image Digital Watermarking 一种新颖的彩色水印图像几何失真校正算法
- A Geometric Distortions Correction Arithmetic Based on Similar Character Complex for Image Digital Watermarking 基于几何变换特征集的水印图像失真校正算法
- Tending to distort or injure meaning, phrasing, or intent. 歪曲的,曲解的倾向于对意思、解释或意图进行曲解或破坏的
- In most structures the distortions are not visible. 在一般结构中,变形是不容易看出来的。
- It creates economic distortions. 它会造成经济扭曲。
- One of a set of parallel geometric figures, such as lines or planes. 平行线,平行面如直线或平面等一组平行的几何图形之一
