本文選題：卷積運算臨界值法　切入點：油氣平臺　出處：《地球信息科學學報》2017年03期

【摘要】：油氣平臺作為海上油氣資源勘探開發(fā)的主要設(shè)備之一,其數(shù)量與空間分布反映了一個區(qū)域油氣資源的開發(fā)狀況。普通光學影像易受天氣狀況影響,而雷達數(shù)據(jù)成本較高,這給油氣平臺的檢測帶來了一定的困難。由于油氣平臺作業(yè)過程中,需要燈光照明,同時伴氣的燃燒也產(chǎn)生很強的燈光,因此可以通過檢測燈光來實現(xiàn)油氣平臺的提取。針對VIIRS數(shù)據(jù)具有強夜間光探測能力,本文提出了一種卷積運算臨界值法對海上油氣平臺進行提取。首先對2期不同時相的VIIRS數(shù)據(jù)進行卷積運算,對亮像元進行了增強處理,對背景像元進行弱化處理,從而明確區(qū)分疑似目標與背景,然后以0值為分界點,對疑似目標進行提取,最后利用油氣平臺相對靜止的特性,通過鄰域分析,實現(xiàn)油氣平臺的提取。結(jié)果表明,本文提出的卷積運算臨界值法可以有效地提取油氣平臺,提取準確率約為85.4%,同時可以有效地減少由于經(jīng)驗閾值對提取結(jié)果造成的誤差。
[Abstract]:As one of the main equipment for offshore oil and gas exploration and development, the quantity and spatial distribution of oil and gas platform reflect the development of oil and gas resources in a region. This brings some difficulties to the detection of oil and gas platforms. During the operation of oil and gas platforms, lighting is needed, and the combustion of gas companion also produces very strong lights. Therefore, the oil and gas platform can be extracted by detecting the light. For the VIIRS data, it has a strong night-time light detection ability. In this paper, a critical value method of convolution operation is proposed to extract offshore oil and gas platform. Firstly, convolution operation is carried out on the VIIRS data of two periods of different phases, the bright pixel is enhanced, and the background pixel is weakened. In this way, the suspected target is clearly distinguished from the background, and then the suspected target is extracted by using zero as the boundary point. Finally, the extraction of the oil and gas platform is realized by neighborhood analysis using the characteristics of the relatively static oil and gas platform. The convolution critical value method proposed in this paper can effectively extract the oil and gas platform, and the extraction accuracy is about 85.4. At the same time, it can effectively reduce the error caused by the empirical threshold.
【作者單位】： 蘭州交通大學測繪與地理信息學院;中國科學院地理科學與資源研究所資源與環(huán)境信息系統(tǒng)國家重點實驗室;中國南海研究協(xié)同創(chuàng)新中心;
【基金】：高分辨率對地觀測系統(tǒng)重大專項(00-Y30B15-9001-14/16-5)“重要戰(zhàn)略資源(石油)安全動態(tài)監(jiān)測評估子系統(tǒng)及應(yīng)用示范(一期)”
【分類號】：TE53

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本文編號：1653237