The paper analyses edge detecting arithmetic operator antijamming ability of prewitt,robert,sobel,log and canny,studies the technology for detecting the image edge of Vgroove,and analyses the experiment results of edge detecting with different edge detecting arithmetic operators.
Embedded lens edger is developed on this condition,the spectacle frame collecting and disposing system of the lens edger uses CMOS image sensor OV7620 as spectacles image collecting tool,and it transmits collected image through OV511 to center processor S3C2410.And S3C2410 uses binarization,edge detecting and other image process techniques to get data of spectacles frame edge and works out other parameters for other machining tache.
In the theory of edge detection of binary image, the classical method is to use regular convolution kernel to construct edge detect operator, such as Sobel operator, Prewitt operator, Kirsch operator and Roberts operator etc.
A new method for edge detection based on directional space is proposed.
The experiment of edge detection is made for the images of nature scenery, human body and accumulative raw material, whose result is compared with the one of classical algorithms and showing the robustness of the proposed method.
Image edge detection based on multi-fractal spectrum analysis
In this paper, an image edge detection method based on multi-fractal spectrum analysis is presented.
Finally, the image edge detection is done by means of different multi-fractal spectrum values.
Edge-detection based on the local variance in angiographic images
As a result, the edge-detection algorithm is not sensitive to noise and low-level textures of images.
Isolated cells were exposed to different levels of extracellular Mg2+ and the amplitude and rate of contraction were measured as a function of change in cell length using a video-based edge-detection system.
We describe an edge-detection technique based on a novel way of authenticating zero-crossings and a method that disqualifies edges detected on defects of the part under inspection.
We also propose an edge-detection algorithm that works cooperatively with the reconstruction process, employing the shape estimates to locate the discontinuities of the reconstructed surface.