architecture: YOLOv3
norm_type: sync_bn
use_ema: true
ema_decay: 0.9998

YOLOv3:
  backbone: CSPResNet
  neck: CustomCSPPAN
  yolo_head: PPYOLOERHead
  post_process: ~

CSPResNet:
  layers: [3, 6, 6, 3]
  channels: [64, 128, 256, 512, 1024]
  return_idx: [1, 2, 3]
  use_large_stem: True
  use_alpha: True

CustomCSPPAN:
  out_channels: [768, 384, 192]
  stage_num: 1
  block_num: 3
  act: 'swish'
  spp: true
  use_alpha: True

PPYOLOERHead:
  fpn_strides: [32, 16, 8]
  grid_cell_offset: 0.5
  use_varifocal_loss: true
  static_assigner_epoch: -1
  loss_weight: {class: 1.0, iou: 2.5, dfl: 0.05}
  static_assigner:
    name: FCOSRAssigner
    factor: 12
    threshold: 0.23
    boundary: [[512, 10000], [256, 512], [-1, 256]]
  assigner:
    name: RotatedTaskAlignedAssigner
    topk: 13
    alpha: 1.0
    beta: 6.0
  nms:
    name: MultiClassNMS
    nms_top_k: 2000
    keep_top_k: -1
    score_threshold: 0.1
    nms_threshold: 0.1
    normalized: False