本文關(guān)鍵詞： Snakes模型 地圖綜合 移位 道路網(wǎng) 形狀參數(shù)　出處：《地理與地理信息科學(xué)》2017年03期 　論文類(lèi)型：期刊論文

【摘要】：基于Snakes模型的移位算法是一種適合線狀地圖要素移位的全局最優(yōu)化算法,該算法的移位效果在一定程度上依賴(lài)于Snakes模型形狀參數(shù)(彈性參數(shù)α和剛性參數(shù)β)的設(shè)置,但目前仍缺少定量化的參數(shù)設(shè)置方法。為改善該算法的移位效果,該文提出了一種顧及道路要素等級(jí)屬性和局部彎曲特征的Snakes模型形狀參數(shù)優(yōu)化設(shè)置方法。該方法分別建立了Snakes模型的形狀參數(shù)與道路等級(jí)屬性、道路內(nèi)部各段彎曲曲率之間的定量關(guān)系,從而可在移位過(guò)程中更好地顧及道路要素的語(yǔ)義特征和圖形特征。實(shí)驗(yàn)中,采用ArcGIS Engine二次開(kāi)發(fā)實(shí)現(xiàn)了相應(yīng)的道路網(wǎng)移位程序,并對(duì)某山區(qū)部分道路網(wǎng)進(jìn)行移位處理,與原有算法相比,移位效果有所改善。
[Abstract]:The shift algorithm based on Snakes model is a global optimization algorithm suitable for the shift of linear map elements. To some extent, the shift effect of this algorithm depends on the setting of shape parameters (elastic parameter 偽 and rigid parameter 尾) of Snakes model. But there is still a lack of quantitative parameter setting method. In order to improve the shift effect of the algorithm, In this paper, a method for optimizing the shape parameters of Snakes model, which takes into account the attribute of road factor grade and local bending, is proposed. The shape parameter and road grade attribute of Snakes model are established by this method, respectively. The quantitative relationship between bending curvature of each segment of the road can better take into account the semantic and graphic features of road elements in the course of displacement. In the experiment, the corresponding shift program of road network is realized by using ArcGIS Engine. And some mountain road network displacement processing, compared with the original algorithm, the displacement effect is improved.
【作者單位】： 長(zhǎng)江大學(xué)地球科學(xué)學(xué)院;武漢大學(xué)資源與環(huán)境科學(xué)學(xué)院;地理信息工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金面上項(xiàng)目(41471384) 地理信息工程國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金課題(SKLGIE2016-Z-4-1) 湖北省教育廳科學(xué)研究計(jì)劃指導(dǎo)性項(xiàng)目(B2015448) 長(zhǎng)江大學(xué)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃項(xiàng)目(2016010)
【分類(lèi)號(hào)】：P208
，

本文編號(hào)：1553024