我将Tensorflow与Python 3.6和Anaconda 1.7.0结合使用。作为模型,我使用“faster_rcnn_inception_v2_pets”。
我用8个不同的类重新训练它,一切正常,对象预测(边界框)也是正确的,但问题是,Tensorflow总是只显示一个标签。例如,我正在训练探测器以区分几种车型(SUV,Coupe,Limousine,......)。因此它总是显示“SUV”标签。 同样奇怪的是,显示的标签始终是我列表中的第一个。因此,当例如“Coupe”写在我的labelmap的第一个位置时,预测的标签是“Coupe”标签。当“SUV”站在第一位时,它就是“SUV”标签。
可能是配置问题吗?或者也许培训期间的重量更多地放在第一个标签上?
谢谢你的帮助!
“faster_rcnn_inception_v2_pets”模型的配置代码:
model {
faster_rcnn {
num_classes: 8
image_resizer {
keep_aspect_ratio_resizer {
min_dimension: 600
max_dimension: 1024
}
}
feature_extractor {
type: 'faster_rcnn_inception_v2'
first_stage_features_stride: 16
}
first_stage_anchor_generator {
grid_anchor_generator {
scales: [0.25, 0.5, 1.0, 2.0]
aspect_ratios: [0.5, 1.0, 2.0]
height_stride: 16
width_stride: 16
}
}
first_stage_box_predictor_conv_hyperparams {
op: CONV
regularizer {
l2_regularizer {
weight: 0.0
}
}
initializer {
truncated_normal_initializer {
stddev: 0.01
}
}
}
first_stage_nms_score_threshold: 0.0
first_stage_nms_iou_threshold: 0.7
first_stage_max_proposals: 300
first_stage_localization_loss_weight: 2.0
first_stage_objectness_loss_weight: 1.0
initial_crop_size: 14
maxpool_kernel_size: 2
maxpool_stride: 2
second_stage_box_predictor {
mask_rcnn_box_predictor {
use_dropout: false
dropout_keep_probability: 1.0
fc_hyperparams {
op: FC
regularizer {
l2_regularizer {
weight: 0.0
}
}
initializer {
variance_scaling_initializer {
factor: 1.0
uniform: true
mode: FAN_AVG
}
}
}
}
}
second_stage_post_processing {
batch_non_max_suppression {
score_threshold: 0.0
iou_threshold: 0.6
max_detections_per_class: 100
max_total_detections: 300
}
score_converter: SOFTMAX
}
second_stage_localization_loss_weight: 2.0
second_stage_classification_loss_weight: 1.0
}
}
train_config: {
batch_size: 1
optimizer {
momentum_optimizer: {
learning_rate: {
manual_step_learning_rate {
initial_learning_rate: 0.0002
schedule {
step: 900000
learning_rate: .00002
}
schedule {
step: 1200000
learning_rate: .000002
}
}
}
momentum_optimizer_value: 0.9
}
use_moving_average: false
}
gradient_clipping_by_norm: 10.0
fine_tune_checkpoint: "C:/Users/DS/Anaconda3/envs/tensorflow1/models/research/object_detection/faster_rcnn_inception_v2_coco_2018_01_28/model.ckpt"
from_detection_checkpoint: true
# Note: The below line limits the training process to 200K steps, which we
# empirically found to be sufficient enough to train the pets dataset. This
# effectively bypasses the learning rate schedule (the learning rate will
# never decay). Remove the below line to train indefinitely.
num_steps: 10000
data_augmentation_options {
random_horizontal_flip {
}
}
}
train_input_reader: {
tf_record_input_reader {
input_path: "C:/Users/DS/Anaconda3/envs/tensorflow1/models/research/object_detection/train.record"
}
label_map_path: "C:/Users/DS/Anaconda3/envs/tensorflow1/models/research/object_detection/training/labelmap.pbtxt"
}
eval_config: {
num_examples: 65
# Note: The below line limits the evaluation process to 10 evaluations.
# Remove the below line to evaluate indefinitely.
max_evals: 10
}
eval_input_reader: {
tf_record_input_reader {
input_path: "C:/Users/DS/Anaconda3/envs/tensorflow1/models/research/object_detection/test.record"
}
label_map_path: "C:/Users/DS/Anaconda3/envs/tensorflow1/models/research/object_detection/training/labelmap.pbtxt"
shuffle: false
num_readers: 1
}