def eval_shapes(arg, sess, ops, up_ratio, eval_xyz):
# loop files
shapes = glob(eval_xyz + "/*.xyz")
for i,item in enumerate(shapes):
obj_name = item.split('/')[-1] # with .xyz
data = np.loadtxt(item)
input_sparse_xyz = data[:, 0:3]
input_sparse_normal = data[:, 3:6]
# normalize point cloud
normalize_sparse_xyz, centroid, furthest_distance = normalize_point_cloud(input_sparse_xyz)
# get patchwise prediction
input_sparse_xyz_list, gen_dense_xyz_list, gen_dense_normal_list, gen_sparse_normal_list = eval_patches(normalize_sparse_xyz, sess, arg, ops)
# un-normalize
gen_ddense_xyz = np.concatenate(gen_dense_xyz_list, axis=0)
gen_ddense_xyz = (gen_ddense_xyz*furthest_distance) + centroid
gen_ddense_normal = np.concatenate(gen_dense_normal_list, axis=0)
# formulate to fps point
fps_idx2 = sess.run(ops['fps_idx2'], feed_dict={ops['shape_ddense_xyz_pl']:gen_ddense_xyz[np.newaxis,...]})
fps_idx2 = fps_idx2[0]
gen_ddense = np.concatenate([gen_ddense_xyz, gen_ddense_normal], axis=-1)
gen_dense = gen_ddense[fps_idx2,0:6]
# save pc
path = os.path.join(arg.eval_path, obj_name)
np.savetxt(path, np.squeeze(gen_dense))
def patch_prediction_eval(pc_point, sess, ops, args, ratio):
is_training = False
# normalize the point clouds
patch_point, centroid, furthest_distance = pc_util.normalize_point_cloud(
pc_point)
patch_point = np.expand_dims(patch_point, axis=0)
batch_patch_point = np.tile(patch_point, [args.batch_size, 1, 1])
batch_pred2, batch_pred1 = sess.run(
[ops['pred2'], ops['pred1']],
feed_dict={
ops['pointclouds_pl']: batch_patch_point,
ops['is_training_pl']: is_training,
ops['pointclouds_radius']: np.ones([args.batch_size], dtype='f'),
ops['up_ratio_pl']: ratio
})
pred2 = np.expand_dims(batch_pred2[0], axis=0)
pred2_pc = pred2[:, :, 0:3]
pred2_pc = np.squeeze(centroid + pred2_pc * furthest_distance, axis=0)
pred1 = np.expand_dims(batch_pred1[0], axis=0)
pred1_pc = pred1[:, :, 0:3]
pred1_pc = np.squeeze(centroid + pred1_pc * furthest_distance, axis=0)
return pred2_pc, pred1_pc
def visualize(self, input_folder=None, save_path=None):
_, restore_model_path = model_utils.pre_load_checkpoint(MODEL_DIR)
logger.info(restore_model_path, bold=True)
config = tf.ConfigProto()
config.gpu_options.allow_growth = True
config.allow_soft_placement = True
with tf.Session(config=config) as sess:
tf_util.optimistic_restore(sess, restore_model_path)
samples = glob(input_folder, recursive=True)
samples.sort()
if len(samples) > 100:
samples = samples[:100]
for point_path in samples:
start = time.time()
data = pc_util.load(point_path, count=NUM_SHAPE_POINT)
num_shape_point = data.shape[0]
data = data[:, 0:3]
is_2D = np.all(data[:, 2] == 0)
data, centroid, furthest_distance = pc_util.normalize_point_cloud(
data)
if FLAGS.drop_out < 1:
idx = farthest_point_sample(
int(num_shape_point * FLAGS.drop_out),
data[np.newaxis, ...]).eval()[0]
data = data[idx, 0:3]
if JITTER:
data = pc_util.jitter_perturbation_point_cloud(
data[np.newaxis, ...],
sigma=FLAGS.jitter_sigma,
clip=FLAGS.jitter_max,
is_2D=is_2D)
data = data[0, ...]
## get the edge information
logger.info(os.path.basename(point_path))
mid = data[(np.abs(data[:, 2]) < np.amax(data[:, 2]) * 0.2), :]
idx = farthest_point_sample(5, mid[np.newaxis, ...]).eval()[0]
# idx = np.random.choice(data.shape[0], 5, replace=False)
patches = pc_util.extract_knn_patch(mid[idx, :], data,
NUM_POINT)
end = time.time()
print("total time: ", end - start)
path = os.path.join(save_path,
point_path.split('/')[-1][:-4] + '.ply')
total_levels = int(np.log2(UP_RATIO) / np.log2(STEP_RATIO))
for p in range(patches.shape[0]):
patch = patches[p]
for i in range(1, total_levels + 1):
patch_result = self.patch_prediction(
patch, sess, STEP_RATIO**i)
pc_util.save_ply(
(patch_result * furthest_distance) + centroid,
path[:-4] + "_p_%d_%d.ply" % (p, i))
pc_util.save_ply((patch * furthest_distance) + centroid,
path[:-4] + "_p_%d_%d.ply" % (p, 0))
pc_util.save_ply((data * furthest_distance) + centroid,
path[:-4] + "_input.ply")
def patch_prediction(self, patch_point, sess, ratio):
# normalize the point clouds
patch_point, centroid, furthest_distance = pc_util.normalize_point_cloud(
patch_point)
patch_point = np.expand_dims(patch_point, axis=0)
pred = sess.run(self.pred,
feed_dict={
self.pointclouds_input:
patch_point,
self.pointclouds_radius:
np.ones(BATCH_SIZE, dtype=np.float32),
self.model_up_ratio:
ratio
})
pred = np.squeeze(centroid + pred * furthest_distance, axis=0)
return pred
def eval_whole_model(sess, ops, args, up_ratio, path_input, path_output):
# get necessary parameters
num_point = args.num_point
num_shape_point = args.num_shape_point
patch_num_ratio = 3
if not os.path.exists(path_output):
os.makedirs(path_output)
# obtain xyz file from path_input
pcs_input = glob(path_input + "/*.xyz")
num_pcs = len(pcs_input)
print('total obj %d' % num_pcs)
for i, path_input_xyz in enumerate(pcs_input):
pc_input = np.loadtxt(path_input_xyz)
name_obj = path_input_xyz.split('/')[-1] # with .xyz
pc_input = pc_input[:, 0:3]
pc_input_normed, centroid, scale = pc_util.normalize_point_cloud(
pc_input)
# obtain patch prediction
input_list, pred2_list, pred1_list = pc_prediction_eval(
pc_input_normed,
sess,
ops,
args,
patch_num_ratio=patch_num_ratio,
ratio=up_ratio)
# formulate patch prediction to full model by fps
pred2_normed = np.concatenate(pred2_list, axis=0)
idx = farthest_point_sample(num_shape_point * up_ratio,
pred2_normed[np.newaxis, ...]).eval()[0]
pred2_normed = pred2_normed[idx, 0:3]
pred2 = (pred2_normed * scale) + centroid
# save xyz
save_path = os.path.join(path_output, 'input_' + name_obj)
np.savetxt(save_path, pc_input)
save_path = os.path.join(path_output, 'pred_' + name_obj)
np.savetxt(save_path, pred2)
def eval_per_patch(input_sparse_xyz, sess, arg, ops):
is_training = False
# normalize patch
normalize_sparse_xyz, centroid, furthest_distance = normalize_point_cloud(input_sparse_xyz)
normalize_sparse_xyz = np.expand_dims(normalize_sparse_xyz,axis=0)
batch_normalize_sparse_xyz = np.tile(normalize_sparse_xyz, [arg.batch_size, 1, 1])
# feed_dict and return result
gen_dense_xyz, gen_dense_normal, gen_sparse_normal = sess.run([ops['gen_dense_xyz'], ops['gen_dense_normal'], ops['gen_sparse_normal']],
feed_dict={ops['input_sparse_xyz_pl']: batch_normalize_sparse_xyz,
ops['training_pl']: is_training,
ops['input_r_pl']: np.ones([arg.batch_size], dtype='f')
})
gen_dense_xyz = np.expand_dims(gen_dense_xyz[0], axis=0)
gen_dense_xyz = np.squeeze(centroid + gen_dense_xyz * furthest_distance, axis=0)
gen_dense_normal = gen_dense_normal[0]
gen_sparse_normal = gen_sparse_normal[0]
return gen_dense_xyz, gen_dense_normal, gen_sparse_normal
FLAGS = parser.parse_args()
PRED_DIR = os.path.abspath(FLAGS.pred)
GT_DIR = os.path.abspath(FLAGS.gt)
print(PRED_DIR)
# NAME = FLAGS.name
print(GT_DIR)
gt_paths = glob(os.path.join(GT_DIR, '*.xyz'))
gt_names = [os.path.basename(p)[:-4] for p in gt_paths]
print(len(gt_paths))
gt = load(gt_paths[0])[:, :3]
pred_placeholder = tf.placeholder(tf.float32, [1, 8192, 3])
gt_placeholder = tf.placeholder(tf.float32, [1, 8192, 3])
pred_tensor, centroid, furthest_distance = normalize_point_cloud(
pred_placeholder)
gt_tensor, centroid, furthest_distance = normalize_point_cloud(gt_placeholder)
cd_forward, _, cd_backward, _ = tf_nndistance.nn_distance(
pred_tensor, gt_tensor)
cd_forward = cd_forward[0, :]
cd_backward = cd_backward[0, :]
precentages = np.array([0.008, 0.012])
def cal_nearest_distance(queries, pc, k=2):
"""
"""
knn_search = NearestNeighbors(n_neighbors=k, algorithm='auto')
knn_search.fit(pc)
def test_hierarical_prediction(self, input_folder=None, save_path=None):
_, restore_model_path = model_utils.pre_load_checkpoint(MODEL_DIR)
logger.info(restore_model_path, bold=True)
config = tf.ConfigProto()
config.gpu_options.allow_growth = True
config.allow_soft_placement = True
with tf.Session(config=config) as sess:
tf_util.optimistic_restore(sess, restore_model_path)
total_time = 0
samples = glob(input_folder, recursive=True)
samples.sort()
# if len(samples)>100:
# samples = samples[:100]
for point_path in samples:
start = time.time()
data = pc_util.load(point_path, count=NUM_SHAPE_POINT)
num_shape_point = data.shape[0]
data = data[:, 0:3]
is_2D = np.all(data[:, 2] == 0)
data, centroid, furthest_distance = pc_util.normalize_point_cloud(
data)
if FLAGS.drop_out < 1:
idx = farthest_point_sample(
int(num_shape_point * FLAGS.drop_out),
data[np.newaxis, ...]).eval()[0]
data = data[idx, 0:3]
if JITTER:
data = pc_util.jitter_perturbation_point_cloud(
data[np.newaxis, ...],
sigma=FLAGS.jitter_sigma,
clip=FLAGS.jitter_max,
is_2D=is_2D)
data = data[0, ...]
## get the edge information
logger.info(os.path.basename(point_path))
input_list, pred_list = self.pc_prediction(
data, sess, patch_num_ratio=PATCH_NUM_RATIO)
end = time.time()
print("total time: ", end - start)
pred_pc = np.concatenate(pred_list, axis=0)
pred_pc = (pred_pc * furthest_distance) + centroid
data = (data * furthest_distance) + centroid
folder = os.path.basename(os.path.dirname(point_path))
path = os.path.join(save_path, folder,
point_path.split('/')[-1][:-4] + '.ply')
# pc_util.save_ply(pred_pc, path[:-4]+'_overlapped.ply')
pc_util.save_ply(data, path[:-4] + '_input.ply')
idx = farthest_point_sample(
int(num_shape_point * FLAGS.drop_out) * UP_RATIO,
pred_pc[np.newaxis, ...]).eval()[0]
pred_pc = pred_pc[idx, 0:3]
# pred_pc, _, _ = pc_util.normalize_point_cloud(pred_pc)
# pred_pc = (pred_pc * furthest_distance) + centroid
pc_util.save_ply(pred_pc, path[:-4] + '.ply')
# if len(input_list) > 1:
# counter = 0
# for in_p, pred_p in zip(input_list, pred_list):
# pc_util.save_ply(in_p*furthest_distance+centroid, path[:-4]+"_input_patch_%d.ply" % counter)
# pc_util.save_ply(pred_p*furthest_distance+centroid, path[:-4]+"_pred_patch_%d.ply" % counter)
# counter += 1
print(total_time / len(samples))
np.arange(pc.shape[0]),
size=[num_patch_per_shape],
replace=False)
seed_points = pc[seed_idx, ...]
input_patches_value = sess.run(
input_patches,
feed_dict={
input_placeholder:
pc[np.newaxis, ...],
num_in_point_placeholder:
num_point * ratio,
seed_points_placeholder:
seed_points[np.newaxis, ...]
})
if furthest_distance is None or centroid is None:
input_patches_value, centroid, furthest_distance = normalize_point_cloud(
input_patches_value)
else:
input_patches_value = (
input_patches_value -
centroid) / furthest_distance
example[dset] = input_patches_value
# each example [N, P, 3] to N examples
for i in range(num_patch_per_shape):
# [save_ply(example[k][i], "./{}_{}.ply".format(i, k)) for k in example]
features = {
k: _floats_feature(v[i].flatten().tolist())
for k, v in example.items()
}
tfexample = tf.train.Example(
features=tf.train.Features(feature=features))
writer.write(tfexample.SerializeToString())
