Patent ID: 11922617
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A system for defect detection, the system comprising circuitry configured to:
acquire a two-dimensional (2D) picture of an object to be detected;
input the acquired 2D picture to a trained defect segmentation model to obtain a segmented 2D defect mask, wherein the defect segmentation model is trained based on a multi-level feature extraction instance segmentation network with intersection over union (IoU) thresholds being increased level by level, and the 2D defect mask comprises information about a defect type, a defect size, and a defect location of a segmented defect region; and
determine the segmented 2D defect mask based on a predefined defect rule to output a defect detection result,
wherein the multi-level feature extraction instance segmentation network is obtained by cascading at least three levels of instance segmentation networks.