Backbone Neck Head Conv SPDConv C3k2 SPDConv C3k2 SPDConv C3k2 SPDConv C3k2 SPPF C2PSA Upsample Upsample Concat C3k2 Concat C3k2 SPDConv Concat C3k2 SPDConv Concat C3k2 Detect_LQE Detect_LQE Detect_LQE Input Conv Conv Conv2d Bbox Loss DWConv Conv DWConv Conv Conv2d Cls Loss Detect_LQE DWConv Conv Conv2d Iou_pred LQE Loss