Rethinking Boundary Discontinuity Problem for Oriented Object Detection

arXiv:2305.10061v2 Announce Type: replace
Abstract: Oriented object detection has been developed rapidly in the past few years, where rotation equivariance is crucial for detectors to predict rotated boxes. It is expected that the prediction can maintain the corresponding rotation when objects rotate, but severe mutation in angular prediction is sometimes observed when objects rotate near the boundary angle, which is well-known boundary discontinuity problem. The problem has been long believed to be caused by the sharp loss increase at the …

arxiv cs.cv detection discontinuity object type