边缘检测

The proposed algorithm first detects smooth intervals based on gray variance from the original frame sequence, then concatenates them to constructs a new frame sequence. After that, video features such as pixel-wise difference, HSV histogram difference and edge histogram difference are fed to a SVM classifier to decide the types of different shot boundaries.

第一级分类器根据视频帧灰度方差特征，将无明显变化的视频序列从原始视频序列中分离出去，得到一个新的视频序列；第二级分类器在新视频序列的基础上，提取视频图像的像素对差值、HSV空间颜色直方图的各分量差值以及边缘直方图X，Y分量差值等视频特征，并采用支持向量机多分类策略进行镜头边界类型的检测。

The algorithm applies wavelet transform to SAR image and enhances ship signal and homogenizes background clutter of SAR images in wavelet domain using multiscale products.

根据SAR图像噪声功率一般存在于信号小尺度，没有跨尺度特征，而目标信号的边缘具有跨尺度的特点，本文提出了一种多尺度积信号增强和去噪的SAR图像船舰目标检测算法。

Automatic boundary extraction of multiple targets of interest in an ultrasound image can not only help clinicians find out most perceptible objects, but also save sonologists' time for boundary delineation. Moreover, it is potentially helpful for the novice instruction and medical research.

中文摘要超音波影像之目标物自动边缘侦测，可帮助临床医师找寻可疑的目标物，节省检测人员手绘目标物的时间，还可以应用於超音波影像之电脑辅助诊断，新进医师的辅助教学，对於医疗诊断与教学研究都有帮助。

This article tries to apply the fractal geometry on edge detecting and sharping of medical image.

本文利用分形几何学对医学图像边缘的增强和检测进行了应用研究。

Fractal theory ; medical image ; edge sharping and detecting

分形理论；医学图像；边缘增强和检测

THIS MACHINE IS PARTICULAR TO JOINT THE IRREGULAR SIZE OF LONG/SHORT CORE VENEER BY THE DIFFERENT THICKNESS 1.2~4.5mm. THE CONSISTENT OPERATION IS FULLY AUTOMATIC FROM FEEDING, TENDERIZING, ELECTRONIC INSPECTION, CLIPPING, GLUE JOINTING AND COLLECTING.

本机型 PLC 中板拼板机，专门处理 1.2~4.5mm 厚度不同之不定尺长中板薄片，由进料、辗压、电子检测、边缘剪切、沾胶拼接成4' x 8'之定尺中板，经自动收板架收板整平，全自动一贯作业。

In the first algorithm, the edge of each binary joint image slice is detected and the joint power spectrum of which is summed.

在第一种算法中，每片二值联合图像片的边缘被检测，其功率谱求和。

For feature extraction, this dissertation studies Barnard algorithm for Edge Point extraction and SUSAN algorithm for Corner extraction, Afterward, I put forward a method to extract inflexions, straight lines and curves based on Freeman Differential Code. Thus the use of Freeman Code can be extended and there will be more approaches to finish stereo correspondence.

在特征提取部分，本文对传统的Barnard边缘点提取、新近的SUSAN角点检测等技术做了详细的分析和研究，并在此基础上提出了基于Freeman差分码的多特征提取方法，包括拐点、直线及曲线，而且提取的直线利用多直线段分解法进行拟合，提取的曲线利用B样条技术进行拟合，最终形成有意义的轮廓。

The results showed that there was no difference between the lysimeters in terms of drainage rate and no edge flow was detected. This design has been shown to be efficient and cost-effective.

试验结果表明，相同土壤土柱之间淋失量差异不显著，没有检测到水分的边缘流动；同时建设效率高，费用低。

This paper discusses the principle of the wavelet transformation and local maximum module algorithm. According to the peculiarity of the nail fold micro-circulation image, using 3-Spline binary wavelet, we detect the edges of it.

本文根据甲襞微循环图像的特点，采用三次B 样条小波对甲襞显微图像进行小波变换，利用模局部极大值方法较好地检测出图像的边缘，定位精度较高。

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。