A SAR ship dataset for detection, discrimination and analysis

Synthetic Aperture Radar is a monitoring solution which is especially well fitted to maritime surveillance. The large swath widths, time-independent, weather resistant observations can be very useful for the detection of ships typically invisible to other forms of monitoring. A dataset which contains 43 Sentinel-1 Extended Wide Swath images and 3 RADARSAT-2 ScanSAR Narrow images between the 6th October 2014 to the 22 July 2015 is described and presented here. These images cover a large percentage of the South African Exclusive Economic Zone using multiple polarisations and three different resolutions. A detailed description of the dataset is given including: the entire generation process from the original compressed data to the geocoded images; the dataset organisational structure tailored to each step of the ship detection process; ship referencing and attribute extraction procedures; supplementary Automatic Identification System transponder information and matching; and ship reference and Automatic Identification System matched ship attribute analysis. A number of novel components are introduced, including a three-class discrimination dataset component which helps provide a more granular approach to ship discrimination performance analysis. The aim of the dataset is to introduce a single Synthetic Aperture Radar dataset which covers a wide range of possible requirements for scientific ship detection method analysis using the newest Synthetic Aperture Radar imagery available. The dataset held here is only the discrimination dataset and the authors can be contacted for the full set of SAR imagery.

合成孔径雷达作为一种监控解决方案，尤其适用于海上监控。其宽阔的扫描宽度、不受时间影响且具有抗风能力的观测数据，对于检测其他监控方式难以察觉的船只具有极大价值。本数据集描述并展示了2014年10月6日至2015年7月22日之间的43幅Sentinel-1扩展宽幅图像和3幅RADARSAT-2 ScanSAR窄幅图像，这些图像覆盖了南非专属经济区内的大部分区域，并采用了多种极化方式和三种不同的分辨率。数据集的详细描述包括：从原始压缩数据到地理编码图像的整个生成过程；针对船只检测过程每个步骤定制的数据集组织结构；船只参照和属性提取程序；辅助的自动识别系统应答器信息匹配；以及船只参照与自动识别系统匹配的船只属性分析。此外，引入了若干新颖的组成部分，包括一个三分类判别数据集组件，有助于提供更细致的船只判别性能分析方法。本数据集的目的是引入一个单一的合成孔径雷达数据集，该数据集涵盖了使用最新合成孔径雷达图像进行科学船只检测方法分析的广泛需求。此处持有的仅为判别数据集，完整集的SAR图像可联系作者获取。