旋转框检测相关资料
DOTA数据集官网: http://captain.whu.edu.cn/DOTAweb/index.html
官网提供水平和旋转目标提交接口,可以看到检测结果实时排行榜: http://captain.whu.edu.cn/DOTAweb/results.html
一、关键节点
1.1 更多的框 + 角度
论文: RRPN
1.2 采用8参数
论文: Gliding vertex on the horizontal bounding box for multi-oriented object detection
1.3 采用极坐标形式表示
论文: Object Detection for Remote Sensing Images Based on Polar Coordinates
二、实现细节
2.1 旋转 Iou 计算
参考:https://github.com/facebookresearch/detectron2/blob/main/detectron2/layers/csrc/box_iou_rotated/box_iou_rotated_utils.h
https://blog.csdn.net/Hoooo_233/article/details/108308795
2.2 判断两线段是否相交
参考:https://en.wikipedia.org/wiki/Intersection_(geometry)#Two_line_segments
https://en.wikipedia.org/wiki/Line–line_intersection
https://segmentfault.com/a/1190000004457595
参考资料
Rotate-Yolov5 for Aerial Images
Improved YOLOv5 in Remote Sensing Slender and Rotating Target Detection