Authors: Jingyi Shen(沈静逸), Guokun Wang(王国坤), Yue Wu(吴岳), Chang Zhou(周昌), Jianqiang Huang(黄建强)

Affiliation: Alibaba

Description: Anchor-free based detection framework with poly regression and text segmentation was used here. The model was firstly pretrained on LSVT、MLT、ReCTS，and then finetuned on ReCTS. Weighted loss was used to enhance small text instances. At testing phase, single-model-multi-scale with post-processing was used to generate the final results.