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{
    "module": "keras_hub.src.models.d_fine.d_fine_object_detector",
    "class_name": "DFineObjectDetector",
    "config": {
        "backbone": {
            "module": "keras_hub.src.models.d_fine.d_fine_backbone",
            "class_name": "DFineBackbone",
            "config": {
                "name": "d_fine_backbone",
                "trainable": true,
                "backbone": {
                    "module": "keras_hub.src.models.hgnetv2.hgnetv2_backbone",
                    "class_name": "HGNetV2Backbone",
                    "config": {
                        "name": "hg_net_v2_backbone",
                        "trainable": true,
                        "depths": [
                            3,
                            4,
                            6,
                            3
                        ],
                        "embedding_size": 32,
                        "hidden_sizes": [
                            128,
                            256,
                            512,
                            1024
                        ],
                        "stem_channels": [
                            3,
                            16,
                            16
                        ],
                        "hidden_act": "relu",
                        "use_learnable_affine_block": true,
                        "stackwise_stage_filters": [
                            [
                                16,
                                16,
                                64,
                                1,
                                3,
                                3
                            ],
                            [
                                64,
                                32,
                                256,
                                1,
                                3,
                                3
                            ],
                            [
                                256,
                                64,
                                512,
                                2,
                                3,
                                5
                            ],
                            [
                                512,
                                128,
                                1024,
                                1,
                                3,
                                5
                            ]
                        ],
                        "apply_downsample": [
                            false,
                            true,
                            true,
                            true
                        ],
                        "use_lightweight_conv_block": [
                            false,
                            false,
                            true,
                            true
                        ],
                        "image_shape": [
                            null,
                            null,
                            3
                        ],
                        "out_features": [
                            "stage2",
                            "stage3",
                            "stage4"
                        ],
                        "data_format": "channels_last"
                    },
                    "registered_name": "keras_hub>HGNetV2Backbone"
                },
                "decoder_in_channels": [
                    256,
                    256,
                    256
                ],
                "encoder_hidden_dim": 256,
                "num_labels": 80,
                "num_denoising": 100,
                "learn_initial_query": false,
                "num_queries": 300,
                "anchor_image_size": [
                    640,
                    640
                ],
                "feat_strides": [
                    8,
                    16,
                    32
                ],
                "num_feature_levels": 3,
                "hidden_dim": 256,
                "encoder_in_channels": [
                    256,
                    512,
                    1024
                ],
                "encode_proj_layers": [
                    2
                ],
                "num_attention_heads": 8,
                "encoder_ffn_dim": 1024,
                "num_encoder_layers": 1,
                "hidden_expansion": 0.5,
                "depth_multiplier": 0.34,
                "eval_idx": -1,
                "box_noise_scale": 1.0,
                "label_noise_ratio": 0.5,
                "labels": null,
                "num_decoder_layers": 3,
                "decoder_attention_heads": 8,
                "decoder_ffn_dim": 1024,
                "decoder_method": "default",
                "decoder_n_points": [
                    3,
                    6,
                    3
                ],
                "lqe_hidden_dim": 64,
                "num_lqe_layers": 2,
                "seed": 0,
                "image_shape": [
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                    null,
                    3
                ],
                "data_format": "channels_last",
                "out_features": [
                    "stage2",
                    "stage3",
                    "stage4"
                ]
            },
            "registered_name": "keras_hub>DFineBackbone"
        },
        "preprocessor": {
            "module": "keras_hub.src.models.d_fine.d_fine_object_detector_preprocessor",
            "class_name": "DFineObjectDetectorPreprocessor",
            "config": {
                "name": "d_fine_object_detector_preprocessor",
                "trainable": true,
                "dtype": {
                    "module": "keras",
                    "class_name": "DTypePolicy",
                    "config": {
                        "name": "float32"
                    },
                    "registered_name": null
                },
                "image_converter": {
                    "module": "keras_hub.src.models.d_fine.d_fine_image_converter",
                    "class_name": "DFineImageConverter",
                    "config": {
                        "name": "d_fine_image_converter",
                        "trainable": true,
                        "dtype": {
                            "module": "keras",
                            "class_name": "DTypePolicy",
                            "config": {
                                "name": "float32"
                            },
                            "registered_name": null
                        },
                        "image_size": [
                            640,
                            640
                        ],
                        "scale": 0.00392156862745098,
                        "offset": null,
                        "interpolation": "bilinear",
                        "antialias": false,
                        "crop_to_aspect_ratio": true,
                        "pad_to_aspect_ratio": false,
                        "bounding_box_format": "yxyx"
                    },
                    "registered_name": "keras_hub>DFineImageConverter"
                },
                "config_file": "preprocessor.json"
            },
            "registered_name": "keras_hub>DFineObjectDetectorPreprocessor"
        },
        "name": "d_fine_object_detector",
        "num_classes": 80,
        "bounding_box_format": "yxyx",
        "matcher_class_cost": 2.0,
        "matcher_bbox_cost": 5.0,
        "matcher_ciou_cost": 2.0,
        "use_focal_loss": true,
        "matcher_alpha": 0.25,
        "matcher_gamma": 2.0,
        "weight_loss_vfl": 1.0,
        "weight_loss_bbox": 5.0,
        "weight_loss_ciou": 2.0,
        "weight_loss_fgl": 0.15,
        "weight_loss_ddf": 1.5,
        "ddf_temperature": 5.0,
        "prediction_decoder": {
            "module": "keras_hub.src.layers.modeling.non_max_supression",
            "class_name": "NonMaxSuppression",
            "config": {
                "name": "non_max_suppression",
                "trainable": true,
                "dtype": {
                    "module": "keras",
                    "class_name": "DTypePolicy",
                    "config": {
                        "name": "float32"
                    },
                    "registered_name": null
                },
                "bounding_box_format": "yxyx",
                "from_logits": true,
                "iou_threshold": 0.5,
                "confidence_threshold": 0.5,
                "max_detections": 300
            },
            "registered_name": "keras_hub>NonMaxSuppression"
        }
    },
    "registered_name": "keras_hub>DFineObjectDetector"
}