research/object_detection/samples/configs/facessd_mobilenet_v2_quantized_320x320_open_image_v4.config
# Quantized trained SSD with Mobilenet v2 on Open Images v4.
# Non-face boxes are dropped during training and non-face groundtruth boxes are
# ignored when evaluating.
#
# Users should configure the fine_tune_checkpoint field in the train config as
# well as the label_map_path and input_path fields in the train_input_reader and
# eval_input_reader. Search for "PATH_TO_BE_CONFIGURED" to find the fields that
# should be configured.
model {
ssd {
num_classes: 1
image_resizer {
fixed_shape_resizer {
height: 320
width: 320
}
}
feature_extractor {
type: "ssd_mobilenet_v2"
depth_multiplier: 1.0
min_depth: 16
conv_hyperparams {
regularizer {
l2_regularizer {
weight: 4.0e-05
}
}
initializer {
truncated_normal_initializer {
mean: 0.0
stddev: 0.03
}
}
activation: RELU_6
batch_norm {
decay: 0.9997
center: true
scale: true
epsilon: 0.001
train: true
}
}
pad_to_multiple: 32
use_explicit_padding: true
}
box_coder {
faster_rcnn_box_coder {
y_scale: 10.0
x_scale: 10.0
height_scale: 5.0
width_scale: 5.0
}
}
matcher {
argmax_matcher {
matched_threshold: 0.5
unmatched_threshold: 0.5
ignore_thresholds: false
negatives_lower_than_unmatched: true
force_match_for_each_row: true
}
}
similarity_calculator {
iou_similarity {
}
}
box_predictor {
convolutional_box_predictor {
conv_hyperparams {
regularizer {
l2_regularizer {
weight: 4.0e-05
}
}
initializer {
truncated_normal_initializer {
mean: 0.0
stddev: 0.03
}
}
activation: RELU_6
batch_norm {
decay: 0.9997
center: true
scale: true
epsilon: 0.001
train: true
}
}
min_depth: 0
max_depth: 0
num_layers_before_predictor: 0
use_dropout: false
kernel_size: 3
box_code_size: 4
apply_sigmoid_to_scores: false
}
}
anchor_generator {
ssd_anchor_generator {
num_layers: 6
min_scale: 0.2
max_scale: 0.95
aspect_ratios: 1.0
aspect_ratios: 2.0
aspect_ratios: 0.5
aspect_ratios: 3.0
aspect_ratios: 0.3333
height_stride: 16
height_stride: 32
height_stride: 64
height_stride: 128
height_stride: 256
height_stride: 512
width_stride: 16
width_stride: 32
width_stride: 64
width_stride: 128
width_stride: 256
width_stride: 512
}
}
post_processing {
batch_non_max_suppression {
score_threshold: 1.0e-08
iou_threshold: 0.5
max_detections_per_class: 100
max_total_detections: 100
}
score_converter: SIGMOID
}
normalize_loss_by_num_matches: true
loss {
localization_loss {
weighted_smooth_l1 {
}
}
classification_loss {
weighted_sigmoid {
}
}
hard_example_miner {
num_hard_examples: 3000
iou_threshold: 0.99
loss_type: CLASSIFICATION
max_negatives_per_positive: 3
min_negatives_per_image: 10
}
classification_weight: 1.0
localization_weight: 1.0
}
}
}
train_config {
batch_size: 32
data_augmentation_options {
random_horizontal_flip {
keypoint_flip_permutation: 1
keypoint_flip_permutation: 0
keypoint_flip_permutation: 2
keypoint_flip_permutation: 3
keypoint_flip_permutation: 5
keypoint_flip_permutation: 4
}
}
data_augmentation_options {
ssd_random_crop_fixed_aspect_ratio {
}
}
optimizer {
rms_prop_optimizer {
learning_rate {
exponential_decay_learning_rate {
initial_learning_rate: 0.004
decay_steps: 800720
decay_factor: 0.95
}
}
momentum_optimizer_value: 0.9
decay: 0.9
epsilon: 1.0
}
}
fine_tune_checkpoint: ""
}
train_input_reader {
label_map_path: "PATH_TO_BE_CONFIGURED/face_label_map.pbtxt"
tf_record_input_reader {
input_path: "PATH_TO_BE_CONFIGURED/face_train.record-?????-of-00100"
}
}
eval_config {
metrics_set: "coco_detection_metrics"
use_moving_averages: true
}
eval_input_reader {
label_map_path: "PATH_TO_BE_CONFIGURED/face_label_map.pbtxt"
shuffle: false
num_readers: 1
tf_record_input_reader {
input_path: "PATH_TO_BE_CONFIGURED/face_val.record-?????-of-00010"
}
}
graph_rewriter {
quantization {
delay: 500000
weight_bits: 8
activation_bits: 8
}
}