Revisiting the Sibling Head in Object Detector

CVPR 2020 Guanglu SongYu LiuXiaogang Wang

The ``shared head for classification and localization'' (sibling head), firstly denominated in Fast RCNN~\cite{girshick2015fast}, has been leading the fashion of the object detection community in the past five years. This paper provides the observation that the spatial misalignment between the two object functions in the sibling head can considerably hurt the training process, but this misalignment can be resolved by a very simple operator called task-aware spatial disentanglement (TSD)... (read more)

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Results from the Paper


TASK DATASET MODEL METRIC NAME METRIC VALUE GLOBAL RANK RESULT BENCHMARK
Object Detection COCO test-dev TSD(ResNet-101-Deformable, Image Pyramid) box AP 49.4 # 12
AP50 69.6 # 13
AP75 54.4 # 13
APS 32.7 # 14
APM 52.5 # 14
APL 61.0 # 16
Object Detection COCO test-dev TSD(SENet154-DCN,multi-scale) box AP 51.2 # 9
AP50 71.9 # 6
AP75 56.0 # 11
APS 33.8 # 11
APM 54.8 # 9
APL 64.2 # 9

Methods used in the Paper