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模型導向的建筑物半自動三維重建

發(fā)布時間:2018-05-26 23:13

  本文選題:模型導向 + 建筑物三維建模。 參考:《遙感信息》2017年03期


【摘要】:針對以航空影像為數(shù)據(jù)源的建筑物三維重建中存在的自動化程度低、精度不高、計算量大的問題,提出一種針對任意建筑物的半自動建筑物三維建模方法。對傳統(tǒng)的模型導向的方法進行改進,首先建立基本模型庫,從模型庫中選擇模型組建建筑物,根據(jù)建筑物內(nèi)部約束確定建筑物參數(shù);然后提出依據(jù)影像上提取的建筑物邊緣信息計算建筑物參數(shù)初始值的方法;最后使用廣義點攝影測量理論進行平差運算計算建筑物的精確參數(shù)。針對幾種不同類型的建筑物進行實驗,結(jié)果表明,該方法切實可行,可以對不同形狀的建筑物重建,且具有精度高、計算速度快、人工輔助少的優(yōu)點。
[Abstract]:In order to solve the problems of low automation, low precision and large amount of calculation in building 3D reconstruction based on aerial image, a semi-automatic building 3D modeling method for arbitrary buildings is proposed. The traditional model-oriented method is improved. Firstly, the basic model base is established, the model is selected from the model base to build the building, and the building parameters are determined according to the internal constraints of the building. Then a method is proposed to calculate the initial values of building parameters based on the building edge information extracted from the image, and the accurate parameters of the building are calculated by using the generalized point photogrammetry theory. Experiments on several different types of buildings show that this method is feasible and can be used to reconstruct buildings with different shapes, and has the advantages of high accuracy, fast calculation speed and less artificial assistance.
【作者單位】: 河南大學環(huán)境與規(guī)劃學院;
【基金】:國家自然科學基金(41101450) 河南大學優(yōu)秀青年科研人才培育基金項目(yqpy20140016)
【分類號】:P231


本文編號:1939338

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