Authors: WangXiong，Yanqinqin （ State Key Laboratory of Digital Publishing Technology）,pengshuai，gaoliangcai（Institute of Computer Science and Technology,Peking University）

Description: We use AdvacnedEAST model to finished this task，and we have increased post processing to improve the precision. The post processing details are as follows.The original model directly predicted the quadrangle which may not be appropriate. We have increased check function to the predict quadrangle.The predict quadrangle should have a high iou with the predict text area, and we set the threshold iou= 0.5 to make sure the predict quadrangle is valid.