Orthophoto & DEM from drone images, UAV, Aldabra arm06, Seychelles - 20221022 - 02_16
收藏资源简介：
"This dataset presents the results of the photogrammetry process using images collected by an Unmanned Aerial Vehicle in Aldabra arm06, Seychelles, on 20221022 The processing was carried out with the OpenDroneMap software from the raw images provided in the first version of this DOI. Underwater or aerial images collected by scientists or citizens can have a wide variety of uses for science, ecosystems management, or conservation. These images can be annotated and shared to train IA models which can in turn predict the objects on such images. We provide a set of tools (hardware and software) to collect marine data, predict species or habitat, and provide maps. The parameters of the OpenDroneMap software are shared so that the proposed processes can be reproduced or improved: [ { 'name': 'orthophoto-resolution', 'value': 1 }, { 'name': 'auto-boundary', 'value': true }, { 'name': 'dem-resolution', 'value': '2.0' }, { 'name': 'dsm', 'value': true } ] The depot consists of the following elements: - 00_: Image preview panel - DCIM.zip: RAW images from UAV - GPS.zip: GIS file (Geopackage) containing the overflight area as well as the geolocation of the images accompanied by their thumbnails in the base64 attribute table. - METADATA.zip: Exif metadata in CSV format, OGC metadata in ISO19115 / 39 XML format, flight reports with thumbnails of drone images and flight statistics (html or pdf files), - PROCESSED_DATA.zip: Orthophoto, DEM, point cloud, ... Original tree structure: │ └─ 20221022_SYC-aldabra-arm06_UAV-02_16 │-------- └─ DCIM │-------- └─ GPS │-------- └─ METADATA │-------- └─ PROCESSED_DATA Flight survey information: - Camera model and parameters: Make: Hasselblad Model: L1D-20c Width: 5472 Height: 3648 Focal: 28 WhiteBalance: Manual ExposureMode: Auto Exposure ColoSpace: sRGB EV: -0.7 MeteringMode: CenterWeightedAverage Camera Pitch: -89.90 - Survey informations: No Images: 22 Median height: 309 meters Survey area: 174810.88 hectares Survey from: 2022:10:22 15:03:58 to: 2022:10:22 16:47:05 "
本数据集呈现了2022年10月22日于塞舌尔阿尔达布拉arm06区域，由无人机（Unmanned Aerial Vehicle, UAV）采集影像后执行摄影测量流程所得的成果。 本次处理基于本数字对象标识符（Digital Object Identifier, DOI）首个版本提供的原始影像，使用OpenDroneMap软件完成。 由科研人员或民众采集的水下与航空影像，可广泛应用于科学研究、生态系统管理与物种保护领域。此类影像可经标注后共享，用于训练人工智能（Artificial Intelligence, AI）模型以实现影像内目标的识别预测。本数据集附带一套软硬件工具集，可用于海洋数据采集、物种/栖息地预测及地图生成。 本次处理所使用的OpenDroneMap软件参数已公开，以便相关流程可被复现或优化： [ { "name": "正射影像分辨率（orthophoto-resolution）", "value": 1 }, { "name": "自动边界（auto-boundary）", "value": true }, { "name": "数字高程模型分辨率（dem-resolution）", "value": "2.0" }, { "name": "数字表面模型生成（dsm）", "value": true } ] 本数据集仓库包含以下内容： - 00_：影像预览面板 - DCIM.zip：无人机采集的原始影像压缩包 - GPS.zip：地理信息系统（Geographic Information System, GIS）文件包（Geopackage格式），包含飞行覆盖区域与影像地理定位信息，其属性表中以base64格式存储影像缩略图 - METADATA.zip：包含CSV格式的EXIF元数据、遵循ISO19115/39 XML格式的开放地理空间联盟（Open Geospatial Consortium, OGC）元数据，以及搭载无人机影像缩略图与飞行统计数据的飞行报告（HTML或PDF格式） - PROCESSED_DATA.zip：正射影像、数字高程模型（Digital Elevation Model, DEM）、点云数据等处理后成果压缩包 原始目录结构： │ └─ 20221022_SYC-aldabra-arm06_UAV-02_16 │-------- └─ DCIM │-------- └─ GPS │-------- └─ METADATA │-------- └─ PROCESSED_DATA 飞行勘测信息： ### 相机型号与参数 - 制造商：哈苏（Hasselblad） - 型号：L1D-20c - 图像宽度：5472像素 - 图像高度：3648像素 - 焦距：28mm - 白平衡模式：手动 - 曝光模式：自动曝光 - 色彩空间：sRGB - 曝光补偿：-0.7 - 测光模式：中央重点平均测光 - 相机俯仰角：-89.90° ### 勘测详情 - 影像总数：22张 - 飞行高度中位数：309米 - 勘测面积：174810.88公顷 - 勘测时段：2022年10月22日15:03:58 至 2022年10月22日16:47:05
