【摘要】：本文以無人機遙感系統(tǒng)獲取的厘米級影像數(shù)據(jù)生產(chǎn)大比例尺地形圖為應用背景,重點探討無人機遙感系統(tǒng)數(shù)據(jù)獲取與處理的理論、方法,主要圍繞無人機平臺選型、傳感器集成、數(shù)據(jù)獲取、數(shù)據(jù)質(zhì)量評價、數(shù)據(jù)處理、傾斜攝影測量等方面開展了系統(tǒng)的實驗和分析工作,取得了對工程應用有價值的實驗結(jié)論。論文主要實驗結(jié)論如下：1.利用無人機遙感系統(tǒng)獲取的實驗區(qū)0.05米分辨率影像數(shù)據(jù),在像控點符合規(guī)范要求時,經(jīng)數(shù)字攝影測量軟件處理后,其平面精度和高程精度不能滿足1：500比例尺地形圖生產(chǎn)精度要求。2.利用無人機遙感系統(tǒng)獲取的實驗區(qū)0.1米分辨率影像數(shù)據(jù)、實驗區(qū)0.2米分辨率影像數(shù)據(jù),在像控點符合規(guī)范要求時,經(jīng)數(shù)字攝影測量軟件處理后,其平面精度和高程精度分別能夠滿足1：1000比例尺、1：2000比例尺地形圖生產(chǎn)精度要求。論文主要創(chuàng)新點如下：1.通過對無人機氣動設計理論和攝影測量理論的融合研究,確定了無人機飛行平臺與傳感器選型相關參數(shù)。利用影像分辨率與成圖比例尺、像點位移與巡航速度、相機的曝光時間的關系,確定了無人機飛行平臺、傳感器選型的相關參數(shù),并利用雷諾數(shù)理論對相關參數(shù)進行了驗證。同時解決了無人機飛行平臺、飛行控制系統(tǒng)、傳感器之間的物理集成、邏輯集成、電磁兼容性、時間同步等無人機遙感系統(tǒng)集成的關鍵技術。2.歸納整理了一套科學合理的無人機航攝質(zhì)量評價指標體系,并在此基礎上設計開發(fā)了無人機遙感系統(tǒng)數(shù)據(jù)質(zhì)量檢查軟件,解決了數(shù)據(jù)獲取現(xiàn)場質(zhì)量檢查的難題。通過研究無人機遙感系統(tǒng)數(shù)據(jù)獲取特點,在分析獲取數(shù)據(jù)類型的基礎上,構(gòu)建了數(shù)據(jù)質(zhì)量評價指標體系和評價流程,設計了質(zhì)量評價軟件模塊及功能,開發(fā)了具有相應功能的質(zhì)量檢查軟件。3.提出了在無人機平臺上搭載單相機、三相機、五相機對地面進行傾斜攝影測量建立地面三維模型的方法。對傾斜相機獲取的厘米級分辨率傾斜影像進行幾何校正、聯(lián)合平差處理后,采用影像匹配技術生成超高密度點云數(shù)據(jù),通過點云數(shù)據(jù)構(gòu)建TIN模型,通過TIN模型構(gòu)建數(shù)字表面模型,基于數(shù)字表面模型采用紋理映射技術構(gòu)建地面三維模型。
[Abstract]:Based on the application background of large scale topographic map produced by centimeter image data obtained by UAV remote sensing system, this paper focuses on the theory and method of data acquisition and processing of UAV remote sensing system, mainly around the selection of UAV platform. Systematic experimental and analytical work has been carried out in sensor integration, data acquisition, data quality evaluation, data processing, tilt photogrammetry and so on, and valuable experimental conclusions have been obtained for engineering application. The main experimental conclusions of this paper are as follows: 1. The 0.05 m resolution image data obtained by UAV remote sensing system are processed by digital photogrammetry software when the image control point meets the requirements of the specification. The plane accuracy and elevation accuracy can not meet the production accuracy requirements of 1 脳 500 scale topographic map. 2. The 0.1 m resolution image data of the experimental area and 0.2 m resolution image data of the experimental area obtained by UAV remote sensing system are processed by digital photogrammetry software when the image control point meets the requirements of the specification. The plane accuracy and elevation accuracy can meet the production accuracy requirements of 1 鈮，

本文編號：2490950