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import torch
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from detectron2.utils.logger import _log_api_usage
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from detectron2.utils.registry import Registry
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META_ARCH_REGISTRY = Registry("META_ARCH")
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META_ARCH_REGISTRY.__doc__ = """
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Registry for meta-architectures, i.e. the whole model.
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The registered object will be called with `obj(cfg)`
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and expected to return a `nn.Module` object.
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"""
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def build_model(cfg):
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"""
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Build the whole model architecture, defined by ``cfg.MODEL.META_ARCHITECTURE``.
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Note that it does not load any weights from ``cfg``.
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"""
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meta_arch = cfg.MODEL.META_ARCHITECTURE
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model = META_ARCH_REGISTRY.get(meta_arch)(cfg)
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model.to(torch.device(cfg.MODEL.DEVICE))
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_log_api_usage("modeling.meta_arch." + meta_arch)
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return model
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