Ground Objects' Reflectance Retrieval Of Remote Sensing Image

In the satellite remote sensing imagery process,the earth launching electromagnetic wave in the goal - atmosphere - remote sensing between dissemination way,receives atmospheric the absorption, the scattering as well as the transmission influence,remote sensing image recording index of reflection and the place thing actual index of reflection is far from.in the typical situation,comes from the place thing reflection radiation contribution to account for 50% in the 450nm wave band, accounts for 80% in the 850nm wave band,Causes the thing picture obscured,the spectrum distorts, restores the thing index of reflection with the inversion model, thus improves the picture quality except the atmospheric disturbance is the most commonly used method, also has the great significance.As a result of the atmospheric disturbance,the remote sensing observed value is inconsistent with the place thing actual reflection spectrum radiation value, the place thing information which receives can really reflect the thing characteristic,simultaneously because the atmospheric function causes the remote sensing receive electromagnetism information to be complex,thus the remote sensing picture also changes complex.Therefore,before remote sensing information use, must carry on to these disturbance factors rejects. But the index of reflection is one of thing essence attributes,describes the remote sensing information master data,is the foundation of remote sensing information application,constructs the remote sensing model essential basic parameter.Therefore must to measure the thing makes the accurate judgement,the index of reflection has the vital significance. Along with the quota remote sensing technology rapid development,the remote sensing information is carrying on the land utilization and the land cover change monitor, global resources aspect and so on environment analysis,climatic change monitor applies more and more much,therefore the remote sensing picture thing index of reflection inversion research more and more receives takes, and has the great significance.The thesis is divided into five chapters.The first chaper:simply introduce the current Image,expatiates the researchful primary content and significance of the thesis,and explains the running condition and research method of the thesis..The second chapter :introduce the ground objects'reflectance and the ground objects'spectrum reflectance,and simply introduce several typical ground objects'spectrum reflectance.The third chapter:introduced the index of reflection retrieval foundation is the atmospheric action,summarizes explained arrives radiation which the ground object the solar radiation and the sensor obtains,and the showing the influence of adjacency effect. simultaneously introduced the present index of reflection inversion method,has inferred the index of reflection inversion equation with emphasis which this research institute uses.The forth chapter:The index of reflection inversion equation infers which according to the third chapter of institute has carried on the index of reflection inversion experiment to the ETM +image the first three wave bands, and compare the retrieval of FLAASH result,the process examination,in the ETM1 wave band,the precision achieves 15%,,ETM2,3 wave bands precision achieves 10%, has confirmed the retrieval method feasibility and the accuracy.The fifth chapter: the part of conclusion and discuss,and advances the exsistent problem of the thesis,and the future development of the thesis.