Grazing Yak Drone Images, data underlying the research of livestock distribution

Dataset OverviewThis dataset focuses on grazing yaks in the eastern Qinghai - Tibet Plateau, aiming to support UAV - based monitoring of livestock distribution. It provides valuable image resources for detecting and analyzing yaks in high - altitude cold alpine meadow grazing systems.Data Collection<strong>Location</strong>: The data was collected in the core distribution area of yaks in the eastern Qinghai - Tibet Plateau. This region is a representative cold alpine meadow grazing system with an average elevation of 3,840 meters (ranging from 3,705 to 4,080 meters) and a vertical relief of 375 meters.<strong>Time</strong>: Data collection took place during the winter of 2024.<strong>Equipment and Parameters</strong>: A DJI Mavic 3M drone was used to capture 722 aerial images. The flight parameters include: flight altitude of 500 m, cruise speed of 15 m/s, forward overlap of 80%, side overlap of 70%, image dimensions of 5280×3956 pixels, and ground resolution of 23 cm. The orthomosaic stitching of the study area was accomplished via DJI Terra software, resulting in an orthomosaic that covers an area of 9.21 km².Dataset Content<strong>Images</strong>: 6,931 images of 512×512 pixels were selected, covering various areas such as artificial pastures, natural grasslands, residential areas, valleys, and roads.<strong>Labels</strong>: Yak locations in the images were marked using Labelimg.Data Storage Directory Structure<strong>images Folder</strong>: Contains the images of the dataset.<strong>labels Folder</strong>: Holds the labels corresponding to the images.<strong>area Folder</strong>: Includes the orthomosaic of the study area.

数据集概览
本数据集聚焦青藏高原东部的放牧牦牛，旨在支持基于无人机（UAV）的畜牧分布监测工作，可为高海拔高寒草甸放牧系统中的牦牛检测与分析提供珍贵的图像资源。

数据采集
采集地点：本数据集采集于青藏高原东部牦牛核心分布区，该区域为典型的高寒草甸放牧系统，平均海拔3840米（海拔范围3705至4080米），相对高差375米。
采集时间：数据采集于2024年冬季。
设备与参数：采用大疆御3M（DJI Mavic 3M）无人机采集了722张航拍图像。飞行参数如下：飞行高度500米，巡航速度15米/秒，前向重叠度80%，旁向重叠度70%，图像尺寸为5280×3956像素，地面分辨率23厘米。通过大疆智图（DJI Terra）软件完成研究区正射影像拼接，生成的正射影像覆盖面积达9.21平方千米。

数据集内容
图像：共筛选出6931张分辨率为512×512像素的图像，覆盖人工牧场、天然草原、居民区、河谷与道路等多种区域。
标签：使用Labelimg工具对图像中的牦牛位置进行标注。

数据集存储目录结构
图像文件夹：存储本数据集的图像文件。
标签文件夹：存储与图像对应的标注文件。
研究区正射影像文件夹：包含研究区的正射影像文件。