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# @package _global_
# Model
model:
_target_: model.segment_anything_2.sam2.modeling.sam2_base.SAM2Base
image_encoder:
_target_: model.segment_anything_2.sam2.modeling.backbones.image_encoder.ImageEncoder
scalp: 1
trunk:
_target_: model.segment_anything_2.sam2.modeling.backbones.hieradet.Hiera
embed_dim: 112
num_heads: 2
neck:
_target_: model.segment_anything_2.sam2.modeling.backbones.image_encoder.FpnNeck
position_encoding:
_target_: model.segment_anything_2.sam2.modeling.position_encoding.PositionEmbeddingSine
num_pos_feats: 256
normalize: true
scale: null
temperature: 10000
d_model: 256
backbone_channel_list: [896, 448, 224, 112]
fpn_top_down_levels: [2, 3] # output level 0 and 1 directly use the backbone features
fpn_interp_model: nearest
memory_attention:
_target_: model.segment_anything_2.sam2.modeling.memory_attention.MemoryAttention
d_model: 256
pos_enc_at_input: true
layer:
_target_: model.segment_anything_2.sam2.modeling.memory_attention.MemoryAttentionLayer
activation: relu
dim_feedforward: 2048
dropout: 0.1
pos_enc_at_attn: false
self_attention:
_target_: model.segment_anything_2.sam2.modeling.sam.transformer.RoPEAttention
rope_theta: 10000.0
feat_sizes: [32, 32]
embedding_dim: 256
num_heads: 1
downsample_rate: 1
dropout: 0.1
d_model: 256
pos_enc_at_cross_attn_keys: true
pos_enc_at_cross_attn_queries: false
cross_attention:
_target_: model.segment_anything_2.sam2.modeling.sam.transformer.RoPEAttention
rope_theta: 10000.0
feat_sizes: [32, 32]
rope_k_repeat: True
embedding_dim: 256
num_heads: 1
downsample_rate: 1
dropout: 0.1
kv_in_dim: 64
num_layers: 4
memory_encoder:
_target_: model.segment_anything_2.sam2.modeling.memory_encoder.MemoryEncoder
out_dim: 64
position_encoding:
_target_: model.segment_anything_2.sam2.modeling.position_encoding.PositionEmbeddingSine
num_pos_feats: 64
normalize: true
scale: null
temperature: 10000
mask_downsampler:
_target_: model.segment_anything_2.sam2.modeling.memory_encoder.MaskDownSampler
kernel_size: 3
stride: 2
padding: 1
fuser:
_target_: model.segment_anything_2.sam2.modeling.memory_encoder.Fuser
layer:
_target_: model.segment_anything_2.sam2.modeling.memory_encoder.CXBlock
dim: 256
kernel_size: 7
padding: 3
layer_scale_init_value: 1e-6
use_dwconv: True # depth-wise convs
num_layers: 2
num_maskmem: 7
image_size: 1024
# apply scaled sigmoid on mask logits for memory encoder, and directly feed input mask as output mask
sigmoid_scale_for_mem_enc: 20.0
sigmoid_bias_for_mem_enc: -10.0
use_mask_input_as_output_without_sam: true
# Memory
directly_add_no_mem_embed: true
# use high-resolution feature map in the SAM mask decoder
use_high_res_features_in_sam: true
# output 3 masks on the first click on initial conditioning frames
multimask_output_in_sam: true
# SAM heads
iou_prediction_use_sigmoid: True
# cross-attend to object pointers from other frames (based on SAM output tokens) in the encoder
use_obj_ptrs_in_encoder: true
add_tpos_enc_to_obj_ptrs: false
only_obj_ptrs_in_the_past_for_eval: true
# object occlusion prediction
pred_obj_scores: true
pred_obj_scores_mlp: true
fixed_no_obj_ptr: true
# multimask tracking settings
multimask_output_for_tracking: true
use_multimask_token_for_obj_ptr: true
multimask_min_pt_num: 0
multimask_max_pt_num: 1
use_mlp_for_obj_ptr_proj: true
# Compilation flag
compile_image_encoder: False
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