Orthophoto & DEM from drone images, UAV, Aldabra arm06, Seychelles - 20221023 - 02_19
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 20221023 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: │ └─ 20221023_SYC-aldabra-arm06_UAV-02_19 │-------- └─ 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: -75.00 - Survey informations: No Images: 281 Median height: 70 meters Survey area: 31.82 hectares Survey from: 2022:10:23 10:07:54 to: 2022:10:23 10:23:49 "
本数据集展示了2022年10月23日于塞舌尔阿尔达布拉arm06区域,由无人机(Unmanned Aerial Vehicle, UAV)采集的影像经摄影测量处理后得到的成果。 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。 科研人员或公众采集的水下与航空影像可广泛应用于科学研究、生态系统管理与生物保护领域。此类影像可经标注与共享,用于训练人工智能模型以实现影像内目标识别。本数据集附带一套工具(涵盖硬件与软件),可用于海洋数据采集、物种或栖息地识别以及地图制作。 本次使用的OpenDroneMap软件参数已公开,以确保所提处理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(dsm)", "value": true } ] 数据集归档包含以下组成部分: - 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)地理数据包(Geopackage),包含飞行区域范围、影像地理定位信息,且其属性表中以base64格式存储了影像缩略图 - METADATA.zip:包含CSV格式的可交换图像文件格式(Exchangeable Image File Format, Exif)元数据、符合开放地理空间联盟(Open Geospatial Consortium, OGC)ISO19115/39 XML规范的元数据,以及附带无人机影像缩略图与飞行统计数据的飞行报告(html或pdf格式文件) - PROCESSED_DATA.zip:正射影像、数字高程模型、点云等处理后数据 原始目录结构如下: │ └─ 20221023_SYC-aldabra-arm06_UAV-02_19 ├─ 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 影像宽度:5472像素 影像高度:3648像素 焦距:28mm 白平衡:手动 曝光模式:自动曝光 色彩空间:sRGB 曝光补偿:-0.7 EV 测光模式:中央重点平均测光 相机俯仰角:-75.00° - 勘测信息: 影像总数:281张 飞行高度中位数:70米 勘测区域:31.82公顷 勘测时段:2022年10月23日10:07:54 至 2022年10月23日10:23:49



