Before revision:  Without additional pre-training  , CBNetV2 can be adapted to various backbones , including manual-based and NAS-based, as well as CNN-based and Transformer-based ones. Experiments provide strong evidence showing that composite backbones are more efficient, effective, and resource-friendly than wider and deeper networks. CBNetV2 is compatible with the head designs of most mainstream detectors ,
After revision:  Without additional pre-training , CBNetV2 can be adapted to various backbones , including manual-based and NAS-based, as well as CNN-based and Transformer-based ) and head designs of most mainstream detectors ,