The ability to accurately measure the strip and plate width,as well as detect the shape of strip slabs for the purpose of detecting lateral bending called camber,together with the head shape in the course of hot rolling process is essential for the production of high and desired quality steel,and also for achieving ace outturn.In recent times,laser triangulation systems,light sensors,width gauge and many others have been used in hot strip mills to measure the width of iron slabs.Triangulation,wh... 

【文章來源】：沈陽建筑大學(xué)遼寧省

【文章頁數(shù)】：56 頁

【學(xué)位級別】：碩士

【文章目錄】：
Abstract
Chapter 1 Introduction
    1.1 Background
    1.2 Problem Statement
    1.3 Significance of the research work
    1.4 Motivation and Scope
    1.5 Research Questions
        1.5.1 Definition of Terms
    1.6 Organization of the thesis
Chapter 2 Background Study
    2.1 Background study
    2.2 Some Problems of Laser Measurement System in Hot Rolling Mill
Chapter 3 Design and Methodology
    3.1 Steel slabs and rolling mill
    3.2 Continuous rolling process
    3.3 Hot rolling
    3.4 Experimental Setup
        3.4.1 Camera Calibration
        3.4.2 Parameters of camera model
        3.4.3 Extrinsic Parameters
    3.5 Zhang's Algorithm
        3.5.1 Derivation
        3.5.2 Data flow
    3.6 Cooling system of Machine vision system
    3.7 Image Pre-Processing
        3.7.1 Impulse Noise Filtering Method Based On Local Similarities
        3.7.2 Canny Edge Detection
            3.7.2.1 Gaussian filter
            3.7.2.2 Finding the intensity gradient of the image
            3.7.3.3 Non-maximum suppression
            3.7.3.4 Edge tracking by hysteresis
    3.8 Improved canny edge detection
        3.8.1 Progressive Scanline
        3.8.2 Centerline
        3.8.3 Shapes and camber
        3.8.4 Lateral bending test and lateral Bending Calculation Method
Chapter 4 Implementation and Result
    4.1 ROI（region of interest）
    4.2 Scanline
    4.3 Width/Meanwidth
    4.4 Experimental results
    4.5 Experimental result on head radius,side radius,and head arc
    4.6 Results for actual cutlength
    4.7 Processing Time
Chapter 5 Summary and Conclusions
    5.1 Summary
    5.2 Conclusion
    5.3 Recommendation and Future Work
References
Bibliography
Acknowledgement



本文編號：3082353