目标识别

Because invariant moments are invariable to transportation, rotation and scale transformation, they are widely used in automatic target recognition.

不变矩特征具有平移、旋转和比例不变性等优点，因此在目标识别中得到了广泛的应用。

The scattering theory based on the equivalent vibrating scattering center and the mathematical model of the modulation are introduced.

在数学建模的基础上，论证了选取雷达回波的机械振动调制频率序列作为目标识别特征的可行性。

Experiments show that the method is a rapid and effective for infrared seeker automatic target recognition.

结果表明，该方法对导引头的红外自动目标识别是快速和有效的。

This is a new kind of image target recognition method of remote sensing.

这是一种全新的遥感图像目标识别方法。

The results of this study still hold the generality of singular value method for object recognition.

该研究结果保证了奇异值可作为通用图像特征用于目标识别。

Feature extraction method and classification selection are crucial to ship target identification.

特征提取方法和分类器的选择是舰船目标识别的关键。

Radar target recognition ; ship ; artificial neural network

雷达目标识别；舰船；人工神经元网络

As translation, scale and rotation invariant features, the Orthogonal Fourier-Mellin Moments are robust and have good ability of image classification and reconstruction. They have been widely used in scenery analysis, target recognition and image classification.

正交傅里叶-梅林矩由于具有平移、尺度、旋转不变性，以及较强的鲁棒性和图像分类和重建能力，在景物分析、目标识别和图像分类中得到了广泛的应用。

Thus, it has undescribable values of applications in spy and monitoring of denfence, military, environments, and disasters.

合成孔径雷达成像应用中最重要、最难、最热门的研究课题之一是自动目标识别。

Although image matching obeys a universal framework, each class of problem is designed by its specific application. This paper focuses on the technique of stereo matching for depth recovery and model-based matching for shape recognition.

图像匹配是计算机视觉和图像理解领域的研究热点之一，已广泛应用于多源图像数据融合、环境监测、目标识别、三维重建等诸多领域。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。