Law Of Error Propagation Between The Image Quality And The Mapping Match

Aiming at the importance of image matching in mapping,the paper studies theinfluence factors of the matching error and concludes that the two factors influence thematching error mostly: matching algorithm and image quality.After finishing theresearch of the matching algorithm,the paper emphasises how image quality degradationeffects influnce matching error, and finally the error transfer law between thedegradation effects and matching error is set up.The main research content of this paper is as follows:(1) According to the characteristics of image matching in digital photographic, thepaper combines the advantage of existing method and proposes a high precisionmatching method which combines the feature matching and gray matching.(2) After finishing the research of the matching algorithm,the paper emphasises theimage quality degradation on the effect of matching error. According to the size of theinfluence degree,the paper choose the corresponding image quality degradation effect,and then the corresponding image quality degradation effect is modeled andparameterized.(3) According to the characterization of mutual coupling between the parametersand the scene, the variation function method based on fractal geometry is adapted todecoupled the correlation between the parameters.(4) Adopting the BP neural network based on genetic algorithm for thecharacterization parameters and matching error fitting, the nonlinear relation betweenand matching error transfer model is established. The simulation and experimentalimage is used to finally validate the model.