atss_X_101_64x4d_FPN_2x.yaml

MODEL:
  META_ARCHITECTURE: "GeneralizedRCNN"
  WEIGHT: "catalog://ImageNetPretrained/FAIR/20171220/X-101-64x4d"
  RPN_ONLY: True
  ATSS_ON: True
  BACKBONE:
    CONV_BODY: "R-101-FPN-RETINANET"
  RESNETS:
    STRIDE_IN_1X1: False
    BACKBONE_OUT_CHANNELS: 256
    NUM_GROUPS: 64
    WIDTH_PER_GROUP: 4
  RETINANET:
    USE_C5: False
  ATSS:
    ANCHOR_SIZES: (64, 128, 256, 512, 1024) # 8S
    ASPECT_RATIOS: (1.0,)
    SCALES_PER_OCTAVE: 1
    USE_DCN_IN_TOWER: False
    POSITIVE_TYPE: 'ATSS' # how to select positves: ATSS (Ours) , SSC (FCOS), IoU (RetinaNet)
    TOPK: 9 # topk for selecting candidate positive samples from each level
    REGRESSION_TYPE: 'BOX' # regressing from a 'BOX' or a 'POINT'
DATASETS:
  TRAIN: ("coco_2017_train",)
  TEST: ("coco_2017_val",)
INPUT:
  MIN_SIZE_RANGE_TRAIN: (640, 800)
  MAX_SIZE_TRAIN: 1333
  MIN_SIZE_TEST: 800
  MAX_SIZE_TEST: 1333
DATALOADER:
  SIZE_DIVISIBILITY: 32
SOLVER:
  BASE_LR: 0.01
  WEIGHT_DECAY: 0.0001
  STEPS: (120000, 160000)
  MAX_ITER: 180000
  IMS_PER_BATCH: 16
  WARMUP_METHOD: "constant"