试论无人机倾斜摄影测量技术及其应用

随着我国测量工程的迅速发展,对工程测量精确度的要求也愈来愈高,传统的测量技术已经很难适应当前多样化测量工作的发展需要,这就需要采用新型的测量技术。无人机倾斜摄影测量技术的应用就顺应了时代的发展潮流,基于此,本文先就无人机倾斜摄影测量技术的应用特征进行简要阐述,然后就无人机倾斜摄影测量的技术标准和技术应用进行详细探究,希望在此次对无人机倾斜摄影测量技术的分析下,能进一步丰富其理论研究。     

倾斜摄影测量技术特点及应用前景研究

新时期,倾斜摄影测量技术在三维建模和工程测量中显示出了较强的适用性,同时,倾斜摄影测量技术由于其自身具备的时代性,在测量技术方法探索环节取得了较广阔的发展空间。本文通过对倾斜摄影测量技术的特点进行分析,进一步论述了倾斜摄影测量技术在当前的发展状况;此外,通过对倾斜摄影测量技术基本原理的阐述,进一步强调在工程测量中,实现影像数据匹配的重要性。     

贴近摄影测量技术在地质工程中的应用探析

贴近摄影测量技术是倾斜摄影测量技术的进一步升华。它的技术支撑有两个:无人机云台姿态控制能力、无人机高精度的定位技术。本文地质工程施工区域为例,简要介绍了贴近摄影测量从航线规划、无人机摄影实施到内业三维模型生产的具体操作,总结出贴近摄影测量技术在地质施工中的发展及主要趋势及研究要点。     

矿山测绘中无人机倾斜摄影技术的应用

近年来,无人机技术、图像处理技术、航空定位技术都得到了快速的发展,并将先进的现代测量技术应用于矿山大比例尺地形测量和三维模型的制作。在此基础上,本文重点研究了倾斜摄影技术在矿山测量中的应用,并讨论了倾斜摄影技术在矿山测量中的应用,通过实践证明,倾斜摄影技术已经达到了矿山测量的基本要求,可以广泛地应用于矿山测量。     

数字摄影测量在土地整理测量中的应用

数字摄影测量是测量工作中的主要技术之一,其能够有效保障土地整理测量数据信息的准确性,提升测量工作效率和质量,则如何强化数字摄影测量应用,成为土地整理测量质量提升的重要内容之一。本文将以数字摄影测量为主要内容,结合实际土地整理测量情况,从数字摄影测量优势和技术两方面进行简单叙述,分析数字摄影测量在土地整理测量中应用内容,提升土地测量数据的准确性和全面性,促进数字摄影测量技术的进一步发展。     

倾斜摄影测量在露天矿山测绘中的应用分析

倾斜摄影测量技术,是在传统摄影测量技术的基础上,结合激光扫描等先进技术而发展出的一种新型测量手段。本文将重点探讨倾斜摄影测量在露天矿山测绘中的应用分析,旨在为相关领域的研究提供借鉴和参考。     

无人机倾斜测量技术在房地一体确权中的应用

随着我国科学技术的发展,无人机倾斜测量技术受到了社会的广泛关注,在多个领域发挥着积极作用,特别是在不动产物权调查中发挥了重要作用。为了提高房屋一体化调查工作的科学性,重视无人机倾斜摄影测量技术,进而创新工作理念以稳定我国房地产一体化发展,无人机倾斜摄影测量技术对于地理测绘事业的发展来说有着积极的影响作用。基于此,介绍了无人机倾斜测量技术的含义和重要作用,并对无人机倾斜摄影测量技术在不动产权调查中的应用进行分析,以提高调查工作的准确性和科学性。     

倾斜摄影测量技术在矿产资源监测中的应用

近年来,我国科学技术水平的不断提高,也推动了无人机倾斜摄影测量技术的发展进程,其能快速、准确的监测矿山资源,解决矿山资源中存在的管理粗放等问题。基于此,文章主要是对倾斜摄影测量技术展开了分析,在此基础上讲解了其在矿产资源监测中的实际应用情况,最后探讨了倾斜摄影测量技术的未来发展,望能为有关人员提供一定的参考和帮助。     

无人机倾斜摄影技术在矿山测绘中的应用

随着现代社会科学技术的不断发展,计算机电子信息工程技术在各个行业都得到了广泛应用。其中,在采矿业的测量制图业中,以无人机倾斜摄影技术为辅助的摄影测量技术是新时代进行测绘工作的有效手段。无人机倾斜摄影技术的使用过程中,由于采用了多种数据采集方法,在拍摄和制图领域具有很高的精度和高分辨率,因此被广泛使用。基于无人机倾斜摄影技术在采矿勘探和制图中的应用范围和应用前景,本文解释了倾斜摄影测量技术在实际应用中遇到问题的原因,并提出了一些参考意见和建议,希望可以有效促进我国矿山测绘领域的稳定发展。     

无人机倾斜摄影测量技术矿山测量中的应用

无人机技术的发展迅猛，已经成为许多领域的重要工具。其中，无人机倾斜摄影测量技术因其高效、高精度的特点，在矿山测量中得到广泛应用。该技术能够利用无人机快速、高效地获取大面积的高分辨率倾斜摄影数据，通过数据处理和分析，为矿山开发提供了强有力的支持。本文将介绍无人机倾斜摄影测量技术在矿山测量中的应用，探讨其优点和存在的问题，以及未来的发展方向。     

Monitoring River Channel and Flume Surfaces with Digital Photogrammetry

This paper describes and illustrates a technique for high resolution monitoring of the surface morphology of water-worked sediments. The monitoring uses close-range digital photogrammetry. While photogrammetry is a long-established technique, more recent developments in digital photogrammetry allow application in fluvial research to be highly cost effective in both flume and natural river channel studies. Results are presented that involve two scales of laboratory flume: a smaller-scale application associated with sediment sorting processes in a straight channel; and a larger-scale application involving sediment transport and bed material feedbacks in a meandering channel subject to overbank flows. A preliminary assessment of data quality is undertaken with encouraging results. The precision of elevation estimates corresponds to the scale of the imagery acquired and hence may be controlled by design of the image acquisition process.     

Assessing the Accuracy of Applying Photogrammetry to Take Geometric Measurements on Building Products

The present research describes the fundamental working mechanism of photogrammetry and characterizes the errors of the photogrammetry-derived geometric measurements on building products in a systematic, practical, and statistically significant way. A site engineer simply takes snapshots of a building product with a digital camera from different angles. Back in office, the engineer derives as-built measurements through postprocessing those photos by use of photogrammetry software. The twelve objects sampled in our experiments were building products and building facilities found on the campus of Hong Kong Polytechnic University, yielding 79 paired geometric measurements (length, width, and height) by photogrammetry and by measurement tape, respectively. The biases and limitations of analyzing the agreement between two sets of measurements by regression and correlation coefficient techniques were first revealed. Then, the “95% limits of agreement” method was applied on the sample data and the confidence intervals were established for the limits of agreement derived, so as to ensure validity and statistical significance of the results. In short, the main contribution of this research lies in formalizing a statistically significant, quantitatively reliable technique to assess the accuracy of applying photogrammetry in particular applications of construction engineering. Through weighing the accuracy level achievable by photogrammetry against the accuracy level desirable in a particular application, the engineer makes the final decision on the applicability of the photogrammetry-based approach.     

Flexible Videogrammetric Technique for Three-Dimensional Structural Vibration Measurement

A videogrammetric technique is proposed for measuring three-dimensional structural vibration response in the laboratory. The technique is based on the principles of close-range digital photogrammetry and computer vision. Two commercial-grade digital video cameras are used for image acquisition. To calibrate these cameras and to overcome potential lens distortion problems, an innovative two-step calibration process including individual and stereo calibration is proposed. These calibrations are efficiently done using a planar pattern arbitrarily shown at a few different orientations. This special characteristic makes it possible to perform an on-site calibration that provides flexibility in terms of using different camera settings to suit various application conditions. To validate the proposed technique, three tests, including sinusoidal motion of a point, wind tunnel test of a cross-section bridge model, and a three-story building model under earthquake excitation, are performed. Results indicate that the proposed videogrammetric technique can provide fairly accurate displacement measurement for all three tests. The proposed technique is shown to be a good complement to the traditional sensors for measuring two- or three-dimensional vibration response in the low-frequency range.     

遥感及航空摄影测量中的新技术探讨

伴随着经济的持续性发展,目前科学技术也处于快速发展阶段,遥感和航空摄影测量属于测绘技术中的发展关键,同时在地形测绘方面的应用也具备较大的意义和价值。数字测绘技术已经基本替代了传统模拟测绘技术,并成为目前主要测绘技术形式。对此,为了有效提高遥感和航空摄影测量工作水平,本文简要分析遥感及航空摄影测量中的新技术,希望可以为相关从业者提供理论帮助。     

设备诊断中的热成像技术

红外热成像用于设备诊断是一门新技术，温差判定法是热成像诊断中的一种有效方法。宝钢将红外热成像技术应用在电气设备诊断和炉窑诊断上，并积累了一些经验。     

无人机三维摄影技术在矿山地质勘查中的应用研究

通过无人机三维摄影测量技术可以获得高分辨率、高精度的正射影像图与三维立体模型等成像效果,在摄影成果数据上进行详细分析,通过实验证明利用无人机三维摄影技术,可以实现对矿山地质的精准勘查。     

Noncontact Photogrammetric Measurement of Vertical Bridge Deflection

This paper reports on the results from a study of vertical deflection measurement of bridges using digital close-range terrestrial photogrammetry (DCRTP). The study consisted of a laboratory and two field exercises. In the laboratory exercise, photogrammetric measurements of a 11.6 m (38 ft) steel beam loaded at midspan were made and compared with dial gauge readings and elastic beam theory. In the first field exercise, the initial camber and dead load deflection of 31.1 m (102 ft) prestressed concrete bridge girders were measured photogrammetrically and compared with level rod and total station readings. A comparison of the photogrammetric measurements with the dead load deflection diagram is also made. In the second field exercise, the vertical deflection of a 14.9 m (49 ft) noncomposite steel girder bridge loaded with two dump trucks was measured. Photogrammetric results are compared with deflections estimated using elastic finite-element analysis, level rod readings, and curvature-based deflection measurements. The paper is concluded with a discussion of work in progress to further improve the accuracy of DCRTP in the field.     

曹妃甸项目倾斜摄影生成三维模型的实践总结

近年来倾斜摄影的飞速发展,三维实景建模技术也日趋成熟。通过简单的操作就可以得到真实三维模型,这项技术被越来越多的应用于项目中。本文曹妃甸项目为例,从影像数据采集方法、实景建模流程、实景模型数据应用方向进行阐述三维实景建模技术的工作流程。     

基于倾斜摄影测量的矿山地形测量模型精度评估

目前,我国对于测量模型精度评估方法的研究尚有不足,传统的测量方法,在样品的选择中存在着缺陷,以倾斜摄影测量的矿山地形测量模型的精度评估方法,研究出一套,更加完善的精度评估方案,对于传统中对于样品的选择不完善,提出了改进,对于样品的数量计算,样品的选取,样品之间相关性的分析、检验,完善精度评估中对于样品的筛选方法,以保证精度评估的可靠性。