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Research of Automatic Extraction About Sheet Metal Corrasion Region

Author: XiongYan
Tutor: SunXianShen
School: PLA Information Engineering University
Course: Geodesy and Survey Engineering
Keywords: Sheet metal Corrosion Filter Sharpening operator Threshold Contour extraction
CLC: TP274
Type: Master's thesis
Year: 2009
Downloads: 11
Quote: 0
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Abstract


For the shortcomings of the current metal corrosion detection technology , this paper proposes a program to build a sheet metal corrosion test evaluation system based on digital image processing technology , the corrosion region extraction technology focus . Mainly to solve the following problems: corrosion image sharpening , sharpening algorithm for Roberts , Sobel sharpening algorithm Priwitt sharpening algorithm and Laplacian sharpening algorithm shortcomings , the Laplacian operator op template has been improved various methods through experiments contrast, proved that the improvement is effective ; the corrosion region image threshold segmentation for the deficiencies of the existing methods , on Ostu method improvements proposed a partial recursive algorithm , this algorithm based on Ostu guidelines , the use of the recursive thinking local search image optimal threshold . Achieved good results through experiments . Since the corrosion area extraction method of manual operation, the error is larger . Therefore , based on digital image processing technology , sheet metal corrosion region extraction technology has broad application prospects , build the sheet metal corrosion test evaluation system has a certain role .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
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