查询词典 edge detection

Then it made denoising and edge detection for the CT image of the brain aiming at the properties and keystoned of CT image. In the process of denosing for CT images of the brain,because it has some characteristics,such as the biomedical signal is a typical non-stationary signal with a strong noise in background,it is more difficult to resolution.

在对脑部CT图像的去噪处理过程中，本文针对生物医学信号是典型的非平稳信号，具有很强的背景噪声，处理起来较困难的特点，引入了一种基于EMD方法的脑部CT图像去噪方法，它可以有效地去除噪声的干扰，充分保留信号的局部特征。

The methods of image processing and edge detection by wavelet transform were introduced in chemistry, and potentiometric titration end-points were determined by wavelet transform.

将小波变换在信号和图象处理中边缘检测的思想方法引入到化学中，用来确定电位滴定的终点，在计算中取得了非常满意的结果。

In this dissertation the 3-order based spline multi-scale wavelet edge detection algorithm are applied to detect edges which out and away improve the measurement accuracy of the stripe size.

本文应用3阶B样条小波多尺度边缘检测算法去定位条纹边缘，大大提高了尺寸测量的精度。

Edge detection and following algorithm are applied in automatic identification the presence of a lot of apertures in carbonates.

两种算法具有较强的针对性、鲁棒性、抗干扰性。

The result of edge detection can offer the important characteristic and definitely distinguish the focus of medical image, for making preparations for the image processing, such as further identifying target and comminuting image.

边缘检测的结果是为了提供图像的重要特性，使医学图像中病灶部位特征能明确区分出来。

However,these approximations yield anisotropy so that the performance of the edge detection deteriorates.

但这些梯度近似值受边界方向的影响较大，降低了边界检测的性能。

And its optics imagery,preprocessing of images,edge detection,sub-pixel location and camera calibration were emphatically investigated,test and analysis software was excogitated,an...

着重研究了该系统的光学成像、螺纹图像预处理、边缘检测、亚像素提取以及摄像机标定等内容，研制了相应的测试分析软件，进行了相应的实验研究。

Experiments show that the subtracting background based on edge detection improves the segmentation performance.

提出了一种基于全局运动估计的视频对象分割算法。

According to this, the author applied wavelet transform to image restoration, enhancement, encoding, edge detection of the ultrasonic imaging well logging, and to attitude computation of tilted fracture and bed plane from well logging image.

在此基础上，将小波变换应用于超声成像测井图像恢复、图像增强、数据压缩编码、边缘检测以及倾斜裂缝和层面产状计算中。

Firstly edge detection method for cross-sections is expatiated, and a B-spline active contour based on adaptive FEM is proposed to fit the digital contour curve.

首先对断层图像的边缘提取方法进行了论述，针对得到的截面轮廓数字曲线，提出了一种基于自适应B样条主动轮廓拟合方法。

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。