# model settings
model = dict(
    type='iTPN',
    backbone=dict(
        type='iTPNHiViT',
        arch='base',
        reconstruction_type='pixel',
        mask_ratio=0.75),
    neck=dict(
        type='iTPNPretrainDecoder',
        num_patches=196,
        patch_size=16,
        in_chans=3,
        embed_dim=512,
        decoder_embed_dim=512,
        decoder_depth=6,
        decoder_num_heads=16,
        mlp_ratio=4.,
        reconstruction_type='pixel',
        #  transformer pyramid
        fpn_dim=256,
        fpn_depth=2,
        num_outs=3,
    ),
    head=dict(
        type='MAEPretrainHead',
        norm_pix=True,
        patch_size=16,
        loss=dict(type='PixelReconstructionLoss', criterion='L2')),
    init_cfg=[
        dict(type='Xavier', layer='Linear', distribution='uniform'),
        dict(type='Constant', layer='LayerNorm', val=1.0, bias=0.0)
    ])