查询词典 edge detection

The characteristics of parallel various image edge detection methods are analyzed experimentally. The advantages, disadvantages and the scope of these methods in application are also analyzed.

本文围绕基于灰度图像的边缘检测技术做了如下工作： 1、对经典的边缘检测方法及各种改进技术进行了归纳、总结，详细介绍了其数学机理，并通过实验对各种方法的特点进行了分析，指出了各种方法优点和不足，以及它们各自的适用范围。

In the dissertation, we propose a practical method of vehiclelogo location from coarse to fine. The approximate scope of vehiclelogo is first confirmed by preexistent knowledge, then its finer position is found by edge detection and morphology operators, and finally it is located precisely by relation match operator in a very small scope.

本文从人眼的视觉特性出发，提出了一种实用的从粗到精的车标定位算法，即先根据先验知识确定车标的大致范围，再运用图像处理中的边缘检测和形态算子确定较准确的车标位置，最后在极小的范围内用相关匹配算子得到车标的精确位置。

In accordance with the characteristics,the maximum and minimum principal curvatures of surface were calculated,and then,automatic threshold was used to segment curvature images.

标 签 人耳识别特征提取边缘检测微分几何主曲率 ear recognition feature extraction edge detection differential geometry principal curvatures

Finally, we make the qualitative analysis of edge detection.

最后对检测的结果进行定性分析。

Color romote sensing image ; edge detection ; fuzzy morphology ; multi-direction

彩色遥感图像；边缘检测；模糊形态学；多方向

The experimental result proves that the proposed method is effective in edge detection of SAR image.

实验结果表明该方法是一种有效的SAR图像边缘检测方法。

In this paper, the Ratio edge detection methods of SAR image are introduced in detail.

在SAR图像的边缘检测方面，深入分析了SAR图像的比值边缘检测方法。

Edge detection based on the value of the second scan line and a combination of license plate location method.

详细说明：提出了基于边缘检测的二值化与扫描线相结合的车牌定位方法。

It can automatically differentiate and pick-up available information of the original image, such as area and perimeter, by image processing and segmentation; may semiautomatically measure the location of a spot on the image, the length of lines, area size; may automatically detect distances between edges by edge detection; at the same time have common functions of minitype image processing software, such as addition or subtract of images, morphological processing and image segmentation.

通过图像处理与分割，自动判别、提取原图像中感兴趣目标的信息，例如面积、周长等；通过对图像的形态处理，可以半自动的测量图像中点的位置、线段长度、面积大小，并做出标记；通过边缘检测，可以自动检测出边缘之间的距离等；同时具有小型图像处理软件通用的功能，如图像相加、减，形态处理，图像分割等。

And thus, edge detection should be carried out in large scale, by which the image was smoothed.

但在大尺度下进行边缘检测的一个缺点是边缘位置容易发生偏移。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。