模型導(dǎo)向的建筑物半自動(dòng)三維重建
發(fā)布時(shí)間:2018-05-26 23:13
本文選題:模型導(dǎo)向 + 建筑物三維建模 ; 參考:《遙感信息》2017年03期
【摘要】:針對(duì)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(dòng)化程度低、精度不高、計(jì)算量大的問題,提出一種針對(duì)任意建筑物的半自動(dòng)建筑物三維建模方法。對(duì)傳統(tǒng)的模型導(dǎo)向的方法進(jìn)行改進(jìn),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(jì)算建筑物參數(shù)初始值的方法;最后使用廣義點(diǎn)攝影測量理論進(jìn)行平差運(yùn)算計(jì)算建筑物的精確參數(shù)。針對(duì)幾種不同類型的建筑物進(jìn)行實(shí)驗(yàn),結(jié)果表明,該方法切實(shí)可行,可以對(duì)不同形狀的建筑物重建,且具有精度高、計(jì)算速度快、人工輔助少的優(yōu)點(diǎn)。
[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(xué)環(huán)境與規(guī)劃學(xué)院;
【基金】:國家自然科學(xué)基金(41101450) 河南大學(xué)優(yōu)秀青年科研人才培育基金項(xiàng)目(yqpy20140016)
【分類號(hào)】:P231
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本文編號(hào):1939338
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