共查询到17条相似文献,搜索用时 130 毫秒
1.
工程图像的矢量化技术 总被引:5,自引:5,他引:0
工程图样的自动矢量化是CAD领域尚未解决的关键技术之一.本文通过对平面二维的工程图样进行了分析,介绍了图像二值化、修饰处理、边缘检测、骨架化、矢量化,编制了自动矢量化算法,并描述了主要函数的功能,该算法将彩色或灰度图样自动转化为直线与圆弧,再由CAD/CAM软件生成NC代码. 相似文献
2.
3.
将图像矢量化技术用于数控线切割自动编程系统,可提高编程的灵活性和智能化水平。利用VISUALC++6.0开发工具,选取最佳处理流程和处理算法而形成的数控线切割自动编程系统图像矢量化模块,在实际的线切割加工中展现了良好的应用前景。 相似文献
4.
5.
6.
7.
8.
数控线切割自动编程系统中的图像矢量化技术 总被引:1,自引:0,他引:1
将图像矢量化技术用于数控线切割自动编程系统 ,可提高编程的灵活性和智能化水平。利用VISUALC ++6 0开发工具 ,选取量佳处理流程和处理算法而形成的数控线切割自动编程系统图像矢量化模块 ,在实际的线切割加工中展现了良好的应用前景 相似文献
9.
本文分析了目前图像边缘检测的一些算法和实现方法,并以TMS320DM642EVM作为数字图像处理硬件平台,通过摄像头提取视频序列,利用DM642中IMG_SOBEL库函数进行边缘检测。 相似文献
10.
激光雕刻中矢量雕刻效果通常好于位图雕刻,而实际中大量图像以位图文件形式存储,因此矢量化就显得尤为重要。阐述了激光雕刻过程中位图转换为矢量图的技术和方法,并利用实例展示了矢量化处理过程及雕刻结果。 相似文献
11.
12.
13.
Accurate edge detection is a fundamental problem in the areas of image processing and pattern recognition/classification. The lack of effective edge detection methods has slowed the application of image processing to many areas, in particular diagnostic cytology, and is a major factor in the lack of acceptance of image processing in service orientated pathology. In this paper, we present a two-step procedure which detects edges. Since most images are corrupted by noise and often contain artefacts, the first step is to clean up the image. Our approach is to use a median filter to reduce noise and background artefacts. The second operation is to locate image pixels which are ‘information rich’ by using local statistics. This step locates the regions of the image most likely to contain edges. The application of a threshold can then pin-point those pixels forming the edge of structures of interest. The procedure has been tested on routine cytologic specimens. 相似文献
14.
15.
16.
Identifying the situation of grinding wheel wear and loading is a very important issue for high efficiency grinding operations.
This paper presents a new method that detects and identifies the chip loading and cutting edge wear of a grinding wheel using
the image processing toolbox of MATLAB. The different optical characters of the metal chips and the abrasive grains are analysed.
The Sobel operator is adopted to make edge detection. A sensitivity threshold based on the global condition is used to decrease
the noise. Image dilation and erosion processes are used to ensure the edge of each loaded chip is covered by a continuous
section. The ratios of chips are calculated and displayed to monitor the wheel surface working status. 相似文献
17.
Z. Feng X. Chen 《The International Journal of Advanced Manufacturing Technology》2007,32(5-6):452-458
Identifying the situation of grinding wheel wear and loading is a very important issue for high-efficiency grinding operations.
This paper presents a new method that detects and identifies the chip loading and cutting edge wear of a grinding wheel using
the image processing toolbox of the MATLAB package. The different optical characters of the metal chips and the abrasive grains
are analysed. The Sobel operator is adopted to make the edge detections. A sensitivity threshold based on the global condition
is used to lower the noise. Image dilation and erosion processes are used to ensure that the edge of each loaded chip is covered
by a continuous section. The ratios of chips are calculated and displayed to monitor the wheel surface working status. 相似文献