Contents Chapter 1Measurement Technology of Slab Camber in Hot Rough Rolling 1.1Overview 1.2Structure of the slab camber measurement system 1.2.1Hardware components of the measurement system 1.2.2Algorithmic framework of the measurement system 1.3Calibration of the measurement system 1.3.1Precise subpixel localization of corners 1.3.2Camera calibration algorithm 1.3.3Optimization of the imaging model 1.4Slab camber information extraction 1.4.1Slab image processing and edge detection 1.4.2Stitching of slab images 1.4.3Slab centerline extraction Chapter 2Measurement Technology of Slab Front-end Bending in Hot Rough Rolling 2.1Overview 2.2Structure of the slab front-end bending measurement system 2.2.1Hardware components of the measurement system 2.2.2Algorithm framework of the measurement system 2.3Calibration of the measurement system 2.3.1Structured light vision model 2.3.2Calibration of the light plane 2.4Slab front-end bending information extraction 2.4.1Structured light center extraction 2.4.2Acquisition of slab bending curve 2.4.3Classification and characterization of slab bending curve Chapter 3Pattern Recognition Technology for Slab Camber 3.1Overview 3.2Data-driven classification of slab camber 3.2.1Dynamic time warping 3.2.2Camber clustering based on ISODATA and DDTW 3.2.3Camber classification based on WRF and comprehensive DTW 3.3Classification results and quality evaluation 3.3.1Clustering and template generalization results 3.3.2Comparison of classification algorithms Chapter 4Control Technology of Slab Camber in Hot Rough Rolling 4.1Overview 4.2Influencing factors of slab camber 4.2.1Incoming material factors 4.2.2Equipment factors 4.2.3Working condition factors 4.3Finite element analysis for the factors affecting camber 4.3.1Finite element model 4.3.2The initial wedge shape 4.3.3Uneven temperature 4.3.4Stiffness difference 4.3.5Initial work roll shape 4.3.6Roller cross gap 4.3.7Sizing press machine 4.4Mechanism model of camber comtrol 4.4.1Mechanical analysis of slab rolling system 4.4.2Strip element analysis for plane shape 4.4.3Establishment of the mechanism control model 4.5Data-driven model of camber control 4.5.1T-S fuzzy model 4.5.2Establishment of data-driven control model 4.5.3Results and analysis of data-driven control model Chapter 5Control Technology of Slab Front-end Bending in Hot Rough Rolling 5.1Overview 5.2Influencing factors of slab front-end bending 5.3Finite element analysis for the factors affecting front-end bending 5.3.1Finite element model 5.3.2Influence of dynamic production factors on front-end bending 5.3.3Influence of inherent production factors on front-end bending 5.4Mechanism model of slab front-end bending control 5.4.1Slab front-end bending in asynchronous rolling 5.4.2Slab front-end bending in asymmetric steel-biting 5.4.3Slab front-end bending under non-uniform material properties 5.5Data-driven model of slab front-end bending control 5.5.1SVM model 5.5.2XGBoost model 5.5.3Establishment of slab front-end bending control model 5.5.4Results and analysis of the control model References