UXOTi_NPA_11_class dataset

Evaluation dataset UXOTi_NPA–an abbreviation that stands for UneXploded Ordnance Thermal images provided by Norwegian People's Aid–for this research was constructed as follows. The raw data was provided by the humanitarian organization Norwegian People’s Aid which collected videos about unexploded ordnances during a project in Bosnia and Herzegovina in 2019. Thermal imaging sensor was mounted on the UAV that surveyed the area at a height of 3 meters. A very small Ground Sampling Distance (GSD) was achieved with such a configuration. These videos were acquired by the thermal imager Zenmuse XT with a dimension of 720x480 pixels at 30 Hz frame rate. Pixel pitch was 17 μm, sensitivity (NEdT) <50mK at focal length f/1.0, and a field of view was 69°x56°. Videos were stored in mp4 format. Image sequences were grabbed from the full videos by using VirtualDub software. These clips were about 25 seconds long and show the UAV's flight over the targets. We annotated videos semi-automatically by using Computer Vision Annotation Tool (CVAT). Positions of objects’ annotations were manually corrected after every 5 to 6 frames. The evaluation dataset consists of 808 thermal images of dimensions of 720x480 pixels extracted from the above-described video clips, whenever at least one target (UXO) was present in the image. The number of objects per image varied between one to three.

本研究使用的评测数据集UXOTi_NPA——全称为"挪威人民援助会（Norwegian People's Aid）提供的未爆炸弹药热成像数据集"——构建流程如下。原始数据由人道主义组织挪威人民援助会（Norwegian People's Aid）提供，该组织于2019年在波斯尼亚和黑塞哥维那开展的项目中收集了未爆炸弹药（Unexploded Ordnance，UXO）相关视频。热成像传感器搭载于无人机上，以3米高度开展区域勘测，该配置实现了极小的地面采样距离（Ground Sampling Distance，GSD）。视频由禅思XT（Zenmuse XT）热成像仪采集，分辨率为720×480像素，帧率30Hz，像素间距17μm，焦距f/1.0下的噪声等效温差（Noise Equivalent Temperature Difference，NEdT）小于50mK，视场角为69°×56°。视频以mp4格式存储。随后使用VirtualDub软件从完整视频中提取图像序列，这些剪辑片段时长约25秒，记录了无人机飞越目标区域的飞行过程。我们采用计算机视觉标注工具（Computer Vision Annotation Tool，CVAT）对半自动化标注视频，并每5至6帧手动校正一次目标标注位置。本评测数据集共包含808张分辨率为720×480像素的热成像图像，均从上述视频片段中提取，且每张图像中至少包含一个未爆炸弹药目标。单张图像中的目标数量介于1至3个之间。

搜集汇总

背景与挑战

背景概述

UXOTi_NPA_11_class数据集是一个包含808张热成像图像的数据集，专门用于未爆炸武器（UXO）的检测和研究。这些图像由无人机在3米高度拍摄，每张图像尺寸为720x480像素，且至少包含一个UXO目标。数据集适用于计算机视觉领域的研究和应用。