边缘检测

Experiments show that the performance of the new approach to the edge classification is better than that of the traditional kind in the edge accuracy. stability and the edge smooth and continuousness, except for more edges and Less noise.

实验结果显示，基于颜色恒常的照度准不变边缘分类算法，在光照颜色变化的情况下，不仅能检测出更多的边缘，噪声点更少，而且检测的边缘更准确，稳定，线条更光滑连续。

Based on joint several edge detection methods, the edge was detected from SAR image by using Haralick algorithm and general fuzzy operator algorithm, and then the detected edge was subtracted from SAR image, then Lee filter was used to filter the speckle image without edge, at last the edge was added to the filtered image.

常规滤波算法在滤除噪声的同时也带来了图像边缘模糊问题，利用多种检测图像边缘算法的有机组合，首先提取出图像边缘，然后将边缘从图像中剔除，对剩下的无边缘噪声图像用改进Lee滤波法进行噪声抑制，再把边缘图像加入，最后得到了能保持边缘的SAR图像相干斑滤除图像。

This procedure first Butterworth high-pass filter images, After segmentation operator subroutine used for edge detection, good results!

此程序先由Butterworth高通滤波器滤波图像，后用sobel算子程序进行边缘检测，效果不错！

Analyzing through the Maar transformation Image's character , a way of measuring margin of intricate object was to be brought forward by setting new estimation rule . As an essential and important type of volcanic activity on earth , phreato ma gmatic eruption is characterized by groundwater-related explosive eruption and subsequent base surge deposit and maar lakes .

通过对 Maar 变换后图像特征的深入分析，设置新的判断准则，提出了一种针对复杂物体边缘检测的算法流私，可以对具有&尖锐角&的物体轮廓进行快速准确地提取，同时利用矢量化方法消除毛刺，使跟踪获得的边界更符合物体的实际轮廓特征。

This software can carry out some base operations of BMP images, such as open, close and save; some base processes of BMP images, such as magnify, shrink, rotate, binary process, mid-value filter, edge-detect, cauterization of pictures and the mosaic effect.

本图像处理软件实现对BMP图像的基本操作，如图像的打开，关闭，保存；图像的基本处理，如图像放大、缩小、旋转、转置、二值化处理、中值滤波、边缘检测、直方图、图像的腐蚀与膨胀以及马赛克效果等等。

For the image of combustor, the method proposed in this paper is based on the grads operators. Through learning the samples of images, the parameters of the templets are trained by using the neural network. Then we can get the optimized grads operators. The result of the experiment shows that this method can effectively improve the edge detection of image processing.

对燃烧器图像，本文以梯度算子为基础，通过对样本图像的学习，利用神经网络对模板参数进行训练，从而得到最优的梯度算子，试验结果表明，本文方法可以使图像边缘检测的效果得到明显的改善。

Canny edge detection based on wavelet is used to detect target in the first frame.

为此，提出边缘检测与Mean Shift 相结合的方法。

In this paper local projection and edge detection methods were used for automatic layer separation.

笔者将局部投影算法和边缘检测运用于测井曲线的自动分层。

The method of obtaining time delay parameters with the reverse access channel is discussed. The modified algorithms of classic correlation methods of TOA estimation are proposed. Noncoherently combining algorithm and group coherent combining algorithm are given. They decrease the computational complexity and are more suitable for implementations in practical systems. The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation. Then the secondary search method is proposed, it can solve the matching issue of PN code in CDMA systems. The location algorithms based on LS are discussed; include circular trilateration with LS, hyperbolic trilateration with reference differencing, hyperbolic trilateration with sequential differencing and circular trilateration with TOA differences. The design and implementation of wireless location system based on TOA/TDOA in CDMA2000 systems are given. The location process is discussed, and the hardware and software implementation of TOA estimation are given. Finally, the wireless location system which uses TOA estimation and LS location algorithms above is tested in the real environment.

文中讨论了采用CDMA2000反向链路中的接入信道来获取时延的方法和过程；对TOA估计的传统的相关法进行了改进，提出了非相干合并相关法和分组合并相关法，减少了基于相关的时延估计算法的运算量，提高了算法的实用性，对算法进行了仿真和性能分析；采用边缘检测技术有效减少了TOA参数估计中的多径干扰，提高了时延参数估计的准确度；提出了一种TOA估计的二次搜索法，解决了多个定位测量单元同时进行TOA估计的PN码匹配问题，进一步了提高TOA估计的精度；在采用时延值的定位算法中引入了基于LS的圆周法、基于参考差的双曲线法、基于相邻差的双曲线法和基于TDOA的圆周法，讨论了各算法的应用条件，进行了算法性能的仿真分析；给出了CDMA2000系统中的TOA/TDOA的无线定位的系统方案和实现流程，并对TOA值估计算法进行了软硬件实现，还对采用TOA估计算法、LS定位算法和定位系统设计方案实现的定位系统的进行了现场定位性能测试。

T.Caelli,On perceptual Analyzers Underlying Visual Texxture Discriminaion,New York Biol.

陈武凡，鲁贤庆，陈建军等。彩色图像边缘检测的新方法——广义模糊算子法［J］。

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。