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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""VitPose model configuration"""
from ...backbone_utils import consolidate_backbone_kwargs_to_config
from ...configuration_utils import PreTrainedConfig
from ...utils import logging
from ..auto.configuration_auto import AutoConfig
logger = logging.get_logger(__name__)
class VitPoseConfig(PreTrainedConfig):
r"""
This is the configuration class to store the configuration of a [`VitPoseForPoseEstimation`]. It is used to instantiate a
VitPose model according to the specified arguments, defining the model architecture. Instantiating a configuration
with the defaults will yield a similar configuration to that of the VitPose
[usyd-community/vitpose-base-simple](https://huggingface.co/usyd-community/vitpose-base-simple) architecture.
Configuration objects inherit from [`PreTrainedConfig`] and can be used to control the model outputs. Read the
documentation from [`PreTrainedConfig`] for more information.
Args:
backbone_config (`Union[dict, "PreTrainedConfig"]`, *optional*, defaults to `VitPoseBackboneConfig()`):
The configuration of the backbone model. Currently, only `backbone_config` with `vitpose_backbone` as `model_type` is supported.
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
scale_factor (`int`, *optional*, defaults to 4):
Factor to upscale the feature maps coming from the ViT backbone.
use_simple_decoder (`bool`, *optional*, defaults to `True`):
Whether to use a `VitPoseSimpleDecoder` to decode the feature maps from the backbone into heatmaps. Otherwise it uses `VitPoseClassicDecoder`.
Example:
```python
>>> from transformers import VitPoseConfig, VitPoseForPoseEstimation
>>> # Initializing a VitPose configuration
>>> configuration = VitPoseConfig()
>>> # Initializing a model (with random weights) from the configuration
>>> model = VitPoseForPoseEstimation(configuration)
>>> # Accessing the model configuration
>>> configuration = model.config
```"""
model_type = "vitpose"
sub_configs = {"backbone_config": AutoConfig}
def __init__(
self,
backbone_config: PreTrainedConfig | None = None,
initializer_range: float = 0.02,
scale_factor: int = 4,
use_simple_decoder: bool = True,
**kwargs,
):
backbone_config, kwargs = consolidate_backbone_kwargs_to_config(
backbone_config=backbone_config,
default_config_type="vitpose_backbone",
default_config_kwargs={"out_indices": [4]},
**kwargs,
)
self.backbone_config = backbone_config
self.initializer_range = initializer_range
self.scale_factor = scale_factor
self.use_simple_decoder = use_simple_decoder
super().__init__(**kwargs)
__all__ = ["VitPoseConfig"]