本文選題：直線提取 + 細(xì)化方法　； 參考：《測繪學(xué)報》2017年02期

【摘要】：提出了一種鏈碼跟蹤與相位驗證相結(jié)合的直線提取方法。該方法首先針對Canny邊緣圖提出一種完全細(xì)化方法;其次提出一種改進(jìn)的鏈碼跟蹤方法,其步驟包括檢測鏈碼端點,建立動態(tài)鏈碼主方向確定鏈碼跟蹤方向,優(yōu)先跟蹤八鄰域內(nèi)邊緣點,八鄰域內(nèi)無邊緣點再進(jìn)行八鄰域外邊緣點,并采用直線化分析對鏈碼進(jìn)行動態(tài)約束;最后對鏈碼進(jìn)行直線擬合及相位驗證,滿足條件輸出直線,不滿足要求的鏈碼則重新設(shè)定端點進(jìn)行跟蹤直線提取。通過多種不同光學(xué)圖像數(shù)據(jù)的試驗結(jié)果分析表明,本文所提出的方法不僅能夠精確實現(xiàn)邊緣直線信息的擬合,并且能夠解決由于白噪聲及相位編組所引起的直線斷裂問題。
[Abstract]:A linear extraction method combining chain code tracking and phase verification is proposed. In this method, firstly, a complete refinement method is proposed for Canny edge graph, and then an improved chain code tracking method is proposed, which consists of detecting chain code endpoints and establishing dynamic chain code main direction to determine chain code tracking direction. The inner edge points of the eight neighbors are tracked first, the outer edge points of the eight neighbors are further carried out without edge points in the eight neighborhoods, and the chain codes are dynamically constrained by linearization analysis. Finally, the line fitting and phase verification of the chain codes are carried out to satisfy the condition of outputting the straight lines. If the chain code does not meet the requirements, the endpoint is reset to extract the tracking line. The experimental results of various optical image data show that the proposed method can not only accurately fit the edge line information, but also solve the linear fracture problem caused by white noise and phase grouping.
【作者單位】： 遼寧工程技術(shù)大學(xué)測繪與地理科學(xué)學(xué)院;中國測繪科學(xué)研究院;
【基金】：國家自然科學(xué)基金(41271374;61540056;41401535) 對地觀測技術(shù)國家測繪地理信息局重點實驗室開放基金項目(K201402) 資源與環(huán)境信息系統(tǒng)國家重點實驗室開放基金~~
【分類號】：P237;TP391.41

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1 王青;魏彩云;;一種基于鏈碼跟蹤的干涉圖信息特征點提取算法[A];第十三屆全國光學(xué)測試學(xué)術(shù)討論會論文（摘要集）[C];2010年

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本文編號：1800411