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test_general_seg.py
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test_general_seg.py
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#!/usr/bin/python3
"""Testing On Segmentation Task."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import os
import sys
import math
import h5py
import argparse
import importlib
import data_utils
import numpy as np
import tensorflow as tf
from datetime import datetime
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--filelist', '-t', help='Path to input .h5 filelist (.txt)', required=True)
parser.add_argument('--load_ckpt', '-l', help='Path to a check point file for load', required=True)
parser.add_argument('--max_point_num', '-p', help='Max point number of each sample', type=int, default=8192)
parser.add_argument('--repeat_num', '-r', help='Repeat number', type=int, default=1)
parser.add_argument('--model', '-m', help='Model to use', required=True)
parser.add_argument('--setting', '-x', help='Setting to use', required=True)
parser.add_argument('--save_ply', '-s', help='Save results as ply', action='store_true')
args = parser.parse_args()
print(args)
model = importlib.import_module(args.model)
setting_path = os.path.join(os.path.dirname(__file__), args.model)
sys.path.append(setting_path)
setting = importlib.import_module(args.setting)
sample_num = setting.sample_num
max_point_num = args.max_point_num
batch_size = args.repeat_num * math.ceil(max_point_num / sample_num)
######################################################################
# Placeholders
indices = tf.placeholder(tf.int32, shape=(batch_size, None, 2), name="indices")
is_training = tf.placeholder(tf.bool, name='is_training')
pts_fts = tf.placeholder(tf.float32, shape=(batch_size, max_point_num, setting.data_dim), name='points')
######################################################################
######################################################################
pts_fts_sampled = tf.gather_nd(pts_fts, indices=indices, name='pts_fts_sampled')
if setting.data_dim > 3:
points_sampled, features_sampled = tf.split(pts_fts_sampled,
[3, setting.data_dim - 3],
axis=-1,
name='split_points_features')
if not setting.use_extra_features:
features_sampled = None
else:
points_sampled = pts_fts_sampled
features_sampled = None
net = model.Net(points_sampled, features_sampled, is_training, setting)
seg_probs_op = tf.nn.softmax(net.logits, name='seg_probs')
# for restore model
saver = tf.train.Saver()
parameter_num = np.sum([np.prod(v.shape.as_list()) for v in tf.trainable_variables()])
print('{}-Parameter number: {:d}.'.format(datetime.now(), parameter_num))
with tf.Session() as sess:
# Load the model
saver.restore(sess, args.load_ckpt)
print('{}-Checkpoint loaded from {}!'.format(datetime.now(), args.load_ckpt))
indices_batch_indices = np.tile(np.reshape(np.arange(batch_size), (batch_size, 1, 1)), (1, sample_num, 1))
folder = os.path.dirname(args.filelist)
filenames = [os.path.join(folder, line.strip()) for line in open(args.filelist)]
for filename in filenames:
print('{}-Reading {}...'.format(datetime.now(), filename))
data_h5 = h5py.File(filename)
data = data_h5['data'][...].astype(np.float32)
data_num = data_h5['data_num'][...].astype(np.int32)
batch_num = data.shape[0]
labels_pred = np.full((batch_num, max_point_num), -1, dtype=np.int32)
confidences_pred = np.zeros((batch_num, max_point_num), dtype=np.float32)
print('{}-{:d} testing batches.'.format(datetime.now(), batch_num))
for batch_idx in range(batch_num):
if batch_idx % 10 == 0:
print('{}-Processing {} of {} batches.'.format(datetime.now(), batch_idx, batch_num))
points_batch = data[[batch_idx] * batch_size, ...]
point_num = data_num[batch_idx]
tile_num = math.ceil((sample_num * batch_size) / point_num)
indices_shuffle = np.tile(np.arange(point_num), tile_num)[0:sample_num * batch_size]
np.random.shuffle(indices_shuffle)
indices_batch_shuffle = np.reshape(indices_shuffle, (batch_size, sample_num, 1))
indices_batch = np.concatenate((indices_batch_indices, indices_batch_shuffle), axis=2)
seg_probs = sess.run([seg_probs_op],
feed_dict={
pts_fts: points_batch,
indices: indices_batch,
is_training: False,
})
probs_2d = np.reshape(seg_probs, (sample_num * batch_size, -1))
predictions = [(-1, 0.0)] * point_num
for idx in range(sample_num * batch_size):
point_idx = indices_shuffle[idx]
probs = probs_2d[idx, :]
confidence = np.amax(probs)
label = np.argmax(probs)
if confidence > predictions[point_idx][1]:
predictions[point_idx] = [label, confidence]
labels_pred[batch_idx, 0:point_num] = np.array([label for label, _ in predictions])
confidences_pred[batch_idx, 0:point_num] = np.array([confidence for _, confidence in predictions])
filename_pred = filename[:-3] + '_pred.h5'
print('{}-Saving {}...'.format(datetime.now(), filename_pred))
file = h5py.File(filename_pred, 'w')
file.create_dataset('data_num', data=data_num)
file.create_dataset('label_seg', data=labels_pred)
file.create_dataset('confidence', data=confidences_pred)
has_indices = 'indices_split_to_full' in data_h5
if has_indices:
file.create_dataset('indices_split_to_full', data=data_h5['indices_split_to_full'][...])
file.close()
if args.save_ply:
print('{}-Saving ply of {}...'.format(datetime.now(), filename_pred))
filepath_label_ply = os.path.join(filename_pred[:-3] + 'ply_label')
data_utils.save_ply_property_batch(data[:, :, 0:3], labels_pred[...],
filepath_label_ply, data_num[...], setting.num_class)
######################################################################
print('{}-Done!'.format(datetime.now()))
if __name__ == '__main__':
main()