OpenPCDet/tools/cfgs/lyft_models/cbgs_second-nores_multihead.yaml

CLASS_NAMES: ['car','truck', 'bus', 'emergency_vehicle', 'other_vehicle',
              'motorcycle', 'bicycle', 'pedestrian', 'animal']

DATA_CONFIG:
    _BASE_CONFIG_: cfgs/dataset_configs/lyft_dataset.yaml


MODEL:
    NAME: SECONDNet

    VFE:
        NAME: MeanVFE

    BACKBONE_3D:
        NAME: VoxelBackBone8x

    MAP_TO_BEV:
        NAME: HeightCompression
        NUM_BEV_FEATURES: 256

    BACKBONE_2D:
        NAME: BaseBEVBackbone

        LAYER_NUMS: [5, 5]
        LAYER_STRIDES: [1, 2]
        NUM_FILTERS: [128, 256]
        UPSAMPLE_STRIDES: [1, 2]
        NUM_UPSAMPLE_FILTERS: [256, 256]

    DENSE_HEAD:
        NAME: AnchorHeadMulti
        CLASS_AGNOSTIC: False

        DIR_OFFSET: 0.78539
        DIR_LIMIT_OFFSET: 0.0
        NUM_DIR_BINS: 2

        USE_MULTIHEAD: True
        SEPARATE_MULTIHEAD: True
        ANCHOR_GENERATOR_CONFIG: [
            {
                'class_name': car,
                'anchor_sizes': [[4.75, 1.92, 1.71]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-1.07],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.6,
                'unmatched_threshold': 0.45
            },
            {
                'class_name': truck,
                'anchor_sizes': [[10.24, 2.84, 3.44]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-0.30],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.55,
                'unmatched_threshold': 0.4
            },
            {
                'class_name': bus,
                'anchor_sizes': [[12.70, 2.92, 3.42]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-0.35],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.55,
                'unmatched_threshold': 0.4
            },
            {
                'class_name': emergency_vehicle,
                'anchor_sizes': [[6.52, 2.42, 2.34]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-0.89],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.5,
                'unmatched_threshold': 0.35
            },
            {
                'class_name': other_vehicle,
                'anchor_sizes': [[8.17, 2.75, 3.20]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-0.63],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.55,
                'unmatched_threshold': 0.4
            },
            {
                'class_name': motorcycle,
                'anchor_sizes': [[2.35, 0.96, 1.59]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-1.32],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.5,
                'unmatched_threshold': 0.3
            },
            {
                'class_name': bicycle,
                'anchor_sizes': [[1.76, 0.63, 1.44]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-1.07],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.5,
                'unmatched_threshold': 0.35
            },
            {
                'class_name': pedestrian,
                'anchor_sizes': [[0.80, 0.76, 1.76]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-0.91],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.6,
                'unmatched_threshold': 0.4
            },
            {
                'class_name': animal,
                'anchor_sizes': [[0.73, 0.35, 0.5]],
                'anchor_rotations': [0, 1.57],
                'anchor_bottom_heights': [-1.80],
                'align_center': False,
                'feature_map_stride': 8,
                'matched_threshold': 0.45,
                'unmatched_threshold': 0.3
            },
        ]

        SHARED_CONV_NUM_FILTER: 64
        RPN_HEAD_CFGS: [
            {
                'HEAD_CLS_NAME': ['car'],
            },
            {
                'HEAD_CLS_NAME': ['truck', 'bus'],
            },
            {
                'HEAD_CLS_NAME': ['emergency_vehicle', 'other_vehicle'],
            },
            {
                'HEAD_CLS_NAME': ['motorcycle', 'bicycle'],
            },
            {
                'HEAD_CLS_NAME': ['pedestrian', 'animal'],
            },
        ]

        SEPARATE_REG_CONFIG: 
            NUM_MIDDLE_CONV: 1
            NUM_MIDDLE_FILTER: 64
            REG_LIST: ['reg:2', 'height:1', 'size:3', 'angle:2']

        TARGET_ASSIGNER_CONFIG:
            NAME: AxisAlignedTargetAssigner
            POS_FRACTION: -1.0
            SAMPLE_SIZE: 512
            NORM_BY_NUM_EXAMPLES: False
            MATCH_HEIGHT: False
            BOX_CODER: ResidualCoder
            BOX_CODER_CONFIG: {
                'code_size': 7,
                'encode_angle_by_sincos': True
            }


        LOSS_CONFIG:
            REG_LOSS_TYPE: WeightedL1Loss
            LOSS_WEIGHTS: {
                'pos_cls_weight': 1.0,
                'neg_cls_weight': 2.0,
                'cls_weight': 1.0,
                'loc_weight': 0.25,
                'dir_weight': 0.2,
                'code_weights': [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
            }

    POST_PROCESSING:
        RECALL_THRESH_LIST: [0.3, 0.5, 0.7]
        SCORE_THRESH: 0.1
        OUTPUT_RAW_SCORE: False

        EVAL_METRIC: lyft

        NMS_CONFIG:
            MULTI_CLASSES_NMS: True
            NMS_TYPE: nms_gpu
            NMS_THRESH: 0.2
            NMS_PRE_MAXSIZE: 1000
            NMS_POST_MAXSIZE: 83


OPTIMIZATION:
    BATCH_SIZE_PER_GPU: 3
    NUM_EPOCHS: 50

    OPTIMIZER: adam_onecycle
    LR: 0.003
    WEIGHT_DECAY: 0.01
    MOMENTUM: 0.9

    MOMS: [0.95, 0.85]
    PCT_START: 0.4
    DIV_FACTOR: 10
    DECAY_STEP_LIST: [35, 45]
    LR_DECAY: 0.1
    LR_CLIP: 0.0000001

    LR_WARMUP: False
    WARMUP_EPOCH: 1

    GRAD_NORM_CLIP: 10