- Sobel edge operator was used to extract the edge contours of two - valued gray level image as the raw sample data , simplifying the test data , and reserving the original characteristics of test data , discontinuity of perforation boundary
- A sobel edge operator and an edge detection algorithm based on cp neural network was employed in this thesis , to achieve image processing of target digital images collecting from static explosion test of fragment warhead , and exactly detecting and analyzing of target fragments numbers , and also the ratio of perforation of fragments from the test , through which more accurate tactics performance characters can be obtained for warhead lethality assessment
- After studied for several decades , there have appeared several classical edge operators , such as roberts , sobel , laplacian , canny and log . meanwhile , there also have presented several classical algorithms of image restoration , such as inverse filter , wiener filter and constrained least squares filter
经过多年的研究,已经形成了roberts算子、 sobel算子、 laplacian算子、 canny算子、 log算子等经典的边缘检测算子以及逆滤波、维纳滤波、约束最小二值滤波等经典的图像恢复方法。
- Secondly , by the analysis of the effect on the spatial moment - based edge operator in sampling and quantifying , some important conclusion is also made , which can give inspiration on the choice of the edge points before calculating the parameters . by the experimental study about the validity and accuracy of the improving operator proposed by authors , the increasing of measuring accuracy is remarkable
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