边缘检测

This paper presents a new spatial error concealment method based on edge detection.

本文提出了一种新的基于边缘检测的空域错误隐藏方法。

After verifying the importance and stability of phase information in image processing, the thesis studies on phase congruency function.

其次，论文对基于图像相位信息的边缘检测算法—相位一致性算法进行了分析研究。

Aiming at the circumstances that skull and the gore are conterminous in the CT image of encephalic hemorrhage,a segmentation algorithm on the gore recognition is designed with the integration of edge detection,region growing and threshold segmentation.

针对颅内出血CT图像颅骨与出血块相接的情况，设计了一个集边缘检测、区域生长、阈值分割于一体的出血块识别算法，并通过计算机模拟实验实现了出血部位的识别与自动分割，为出血量的定量计算奠定基础。

Extraction of edge detection and contour following and some of code, very useful, you will need them.

详细说明：边缘检测提取及轮廓跟踪及一些化码，很有用的，你一定用得上。

Finally we will see later on that there is another way to make edge detection with matrix convolution.

最后我们将看到，稍后有另一种方式，使边缘检测与矩阵的卷积。

An algorithm for the convolution of this filter and an image is also given.

一个仿真实例表明这种用于边缘检测的自适应滤波器是有效的。

This paper puts forward a united Laplacian transform which is based on the differential geometry curve coordinate system,the practical numerical experiment results show that this method has a strong edge detection ability and produces the better effect compared with old method.

该文采用基于微分几何曲线坐标系下普遍的Laplacian算子进行边缘检测，从结果可以看到处理效果明显优于普通的方法。

At first, preprocessing with the image pyramid and diffusion-filtering technology; then abstracting the boundary-outline information; carrying on the logarithmic coordinate transformation of the abstracted boundary-outline information to get bar chart of the logarithmic coordinate; calculating the value of Cs to get all the phase match points; calculating the value of the degree of approximation to judge the shape matching.

本发明涉及一种基于Shape Context的人脸形状匹配方法，首先采用图像金字塔及扩散滤波技术进行预处理；再利用Canny边缘检测算法和轮廓提取算法提取边界轮廓信息；对提取的边界信息进行对数极坐标变换，得到对数极坐标直方图；通过计算Cs值，获得所有相匹配点；计算相近似度值，进行形状匹配判断。

In this paper, a new method of edge detection ispresented.

该文提出了一种新的边缘检测方法。

By analysis and comparison the algorithms, the dissertation presented an algorithm, based on the Sobel operator and frame difference method. Considering the characteristics of infrared image, the frame difference algorithm is simple and easy to be realized by hardware.

文中对多种边缘检测算子进行了分析比较，其中Sobel算子在处理该类图像时的速度与效果比较理想，且算法简单易于DSP硬件实现，所以最终采用了sobel算子。

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。