搜索结果: 1-15 共查到“知识库 摄影测量与遥感技术其他学科”相关记录433条 . 查询时间(2.917 秒)
中国长时间序列积雪面积遥感产品数据集发布（图）
长时间序列 积雪面积 遥感产品数据集
2022/9/22
积雪面积是研究水文和气候变化的重要因子，也是气候变化的指示器，对地表能量平衡、水体通量、水文过程、大气及其海洋循环等具有显著影响。1978年卫星数据观测表明，北半球积雪持续减少，模型模拟结果表明，温度每升高1℃，北半球积雪面积缩减100-280万平方公里。在全球升温背景下，一套长时间序列的高空间分辨率积雪面积遥感产品对于气候变化及其反馈研究具有重要意义。
车载激光点云道路边界提取的Snake方法
车载激光点云 主动轮廓模型(Snake) 道路提取 梯度 能量函数
2021/6/2
针对车载激光点云中道路边界提取困难，自动化程度低的问题，提出一种基于离散点Snake的车载激光点云道路边界提取方法。不同于传统基于图像建立Snake，本文直接基于离散点建立Snake模型。先利用伪轨迹点数据，确定初始轮廓位置，参数化不同类型的道路边界初始轮廓；然后基于离散点构建适合多类型道路边界的Snake模型，定义模型内部、外部和约束能量，通过能量函数最小化推动轮廓曲线移动到显著道路边界特征点处...
REMOTE SENSING TECHNIQUES IN DISASTER MANAGEMENT: AMYNTEON MINE LANDSLIDES, GREECE
remote sensing, digital image processing, image interpretation, fault zones, disaster management, landslides
2018/5/8
Natural or man-made disasters are phenomena that can affect large areas and have many environmental, societal and economic impacts. Landslides are among the major disasters of large scale that may aff...
FROM FIELD WORK TO DELIVERABLES. EXPERIENCES ON THE TIN HOUSE COURTYARD DOCUMENTATION
Tin House Courtyard laser scanner photogrammetry CAD drawings BIM models documentation
2017/8/30
The Tin House Courtyard is a property of the National Capital Commission (NCC) in Ottawa, Canada. The site is located within the ‘Mile of History’, a historical route running from Parliament Hill to t...
高精度、高分辨率的地形地貌数据是活动构造定量研究的基础。摄影测量方法的出现和快速发展为获取高精度地形地貌数据提供了一种经济有效的技术手段。相比于传统的测量方法，摄影测量方法可在大范围内同时进行，不受地面通视条件的限制，且测量成本相对较低。尤其近年来，随着计算机视觉理论及高效的自动特征匹配算法的发展，一种名为"Structure from Motion"（SfM）的三维重建技术被引入摄影测量方法中，...
MULTIPLE 3D APPROACHES FOR THE ARCHITECTURAL STUDY OF THE MEDIEVAL ABBEY OF CORMERY IN THE LOIRE VALLEY
Archaeology Architecture Church Drawing
2017/4/10
This paper will focus on the technical approaches used for a PhD thesis regarding architecture and spatial organization of benedict abbeys in Touraine in the Middle Ages, in particular the abbey of Co...
FISHEYE PHOTOGRAMMETRY: TESTS AND METHODOLOGIES FOR THE SURVEY OF NARROW SPACES
Fisheye Photogrammetry Survey
2017/4/10
The research illustrated in this article aimed at identifying a good standard methodology to survey very narrow spaces during 3D investigation of Cultural Heritage. It is an important topic in today’s...
NEW PERSPECTIVES OF POINT CLOUDS COLOR MANAGEMENT – THE DEVELOPMENT OF TOOL IN MATLAB FOR APPLICATIONS IN CULTURAL HERITAGE
Color Models Cultural Heritage Terrestrial Laser Scanner Photogrammetry
2017/4/10
The paper describes a method for Point Clouds Color management and Integration obtained from Terrestrial Laser Scanner (TLS) and Image Based (IB) survey techniques. Especially in the Cultural Heritage...
ACCURACY ASSESSMENT OF A COMPLEX BUILDING 3D MODEL RECONSTRUCTED FROM IMAGES ACQUIRED WITH A LOW-COST UAS
Building 3D Model hyperbolic paraboloid low-cost UASs
2017/4/10
Nowadays, Unmanned Aerial Systems (UASs) are a wide used technique for acquisition in order to create buildings 3D models, providing the acquisition of a high number of images at very high resolution ...
A SMARTPHONE-BASED 3D PIPELINE FOR THE CREATIVE INDUSTRY – THE REPLICATE EU PROJECT
3D reconstruction Smartphone Creative industry REPLICATE
2017/4/10
During the last two decades we have witnessed great improvements in ICT hardware and software technologies. Three-dimensional content is starting to become commonplace now in many applications. Althou...
CLOSE RANGE UAV ACCURATE RECORDING AND MODELING OF ST-PIERRE-LE-JEUNE NEO-ROMANESQUE CHURCH IN STRASBOURG (FRANCE)
Close range photogrammetry UAV 3D reconstruction heritage documentation
2017/4/10
Close-range photogrammetry is an image-based technique which has often been used for the 3D documentation of heritage objects. Recently, advances in the field of image processing and UAVs (Unmanned Ae...
A GEOMETRICAL SIMILARITY PATTERN AS AN EXPERIMENTAL MODEL FOR SHAPES IN ARCHITECTURAL HERITAGE: A CASE STUDY OF THE BASE OF THE PILLARS IN THE CATHEDRAL OF SEVILLE AND THE CHURCH OF SANTIAGO IN JEREZ, SPAIN
Geometrical similarity pattern 3D range scanning
2017/4/10
This paper proposes a procedure for the search of a geometrical similarity pattern in architectural heritage by means of calculating probability indexes to support hypotheses initially endorsed by doc...
LOCALIZATION OF PATHOLOGY ON COMPLEX ARCHITECTURE BUILDING SURFACES
Laser Scanning Point Cloud Heritage Complex Architecture Pathology
2017/4/7
The technology of 3D laser scanning is considered as one of the most common methods for heritage documentation. The point clouds that are being produced provide information of high detail, both geomet...
THE USE OF 3D SCANNING AND PHOTOGRAMMETRY TECHNIQUES IN THE CASE STUDY OF THE ROMAN THEATRE OF NIKOPOLIS. SURVEYING, VIRTUAL RECONSTRUCTION AND RESTORATION STUDY.
Theatre Roman Nikopolis 3D scanning Photogrammetry Monument Restoration
2017/4/5
The aim of this paper is to present the specific methods by which 3D scanning and photogrammetric techniques were incorporated into the architectural study, the documentation and the graphic restorati...