Oriented R-CNN for Object Detection
          Xingxing Xie Gong Cheng* Jiabao Wang Xiwen Yao Junwei Han
          School of Automation, Northwestern Ploytechnical University, Xi’an, China
         {xiexing,jbwang}@mail.nwpu.edu.cn            {gcheng,yaoxiwen,jhan}@nwpu.edu.cn


Figure 1: Comparisons of different schemes for generating oriented proposals. (a) Rotated RPN densely places rotated
anchors with different scales, ratios, and angles. (b) RoI Transformer+ learns oriented proposal from ho ...