demo-confs/models/dino_swin_small_224.py

from detectron2.config import LazyCall as L
from detectron2.layers import ShapeSpec
from detectron2.modeling.backbone import SwinTransformer

from .dino_r50 import model


# modify backbone config
model.backbone = L(SwinTransformer)(
    pretrain_img_size=224,
    embed_dim=96,
    depths=(2, 2, 18, 2),
    num_heads=(3, 6, 12, 24),
    drop_path_rate=0.2,
    window_size=7,
    out_indices=(1, 2, 3),
)

# modify neck config
model.neck.input_shapes = {
    "p1": ShapeSpec(channels=192),
    "p2": ShapeSpec(channels=384),
    "p3": ShapeSpec(channels=768),
}
model.neck.in_features = ["p1", "p2", "p3"]