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78d2329 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | import argparse
import json
import os
from glob import glob
from pathlib import Path
import torch
from tqdm import tqdm
from optgs.scripts.convert_dl3dv_utils import Example, get_size, load_images, load_metadata, is_image_shape_matched
parser = argparse.ArgumentParser()
parser.add_argument("--input_dir", type=str, help="original dataset directory")
parser.add_argument("--output_dir", type=str, help="processed dataset directory")
parser.add_argument(
"--img_subdir",
type=str,
default="images_8",
help="image directory name",
choices=[
"images_4",
"images_8",
],
)
parser.add_argument("--n_test", type=int, default=10, help="test skip")
parser.add_argument("--which_stage", type=str, default=None, help="dataset directory")
parser.add_argument("--detect_overlap", action="store_true")
args = parser.parse_args()
INPUT_DIR = Path(args.input_dir)
OUTPUT_DIR = Path(args.output_dir)
# Target 200 MB per chunk.
TARGET_BYTES_PER_CHUNK = int(2e8)
def legal_check_for_all_scenes(root_dir, target_shape):
valid_folders = []
sub_folders = sorted(glob(os.path.join(root_dir, "*/*")))
for sub_folder in tqdm(sub_folders, desc="checking scenes..."):
# img_dir = os.path.join(sub_folder, 'images_8')
img_dir = os.path.join(sub_folder, "images_4")
if not is_image_shape_matched(Path(img_dir), target_shape):
print(f"image shape does not match for {sub_folder}")
continue
pose_file = os.path.join(sub_folder, "transforms.json")
if not os.path.isfile(pose_file):
print(f"cannot find pose file for {sub_folder}")
continue
valid_folders.append(sub_folder)
return valid_folders
if __name__ == "__main__":
if "images_8" in args.img_subdir:
target_shape = (270, 480) # (h, w)
elif "images_4" in args.img_subdir:
target_shape = (540, 960)
else:
raise ValueError
print("checking all scenes...")
valid_scenes = legal_check_for_all_scenes(INPUT_DIR, target_shape)
print("valid scenes:", len(valid_scenes))
# test scenes
test_scenes = "your_test_set_index.json"
with open(test_scenes, "r") as f:
overlap_scenes = json.load(f)
assert len(overlap_scenes) == 140, "test scenes should contain 140 scenes"
for stage in ["train"]:
error_logs = []
image_dirs = valid_scenes
chunk_size = 0
chunk_index = 0
chunk: list[Example] = []
def save_chunk():
global chunk_size
global chunk_index
global chunk
chunk_key = f"{chunk_index:0>6}"
dir = OUTPUT_DIR / stage
dir.mkdir(exist_ok=True, parents=True)
torch.save(chunk, dir / f"{chunk_key}.torch")
# Reset the chunk.
chunk_size = 0
chunk_index += 1
chunk = []
for image_dir in tqdm(image_dirs, desc=f"Processing {stage}"):
key = os.path.basename(image_dir.strip("/"))
# skip test scenes
if key in overlap_scenes:
print(f"scene {key} in benchmark, skip.")
continue
image_dir = Path(image_dir) / "images_8" # 270x480
# image_dir = Path(image_dir) / 'images_4' # 540x960
num_bytes = get_size(image_dir)
# Read images and metadata.
try:
images = load_images(image_dir)
except:
print("image loading error")
continue
meta_path = image_dir.parent / "transforms.json"
if not meta_path.is_file():
error_msg = f"---------> [ERROR] no meta file in {key}, skip."
print(error_msg)
error_logs.append(error_msg)
continue
example = load_metadata(meta_path)
# Merge the images into the example.
try:
example["images"] = [
images[timestamp.item()] for timestamp in example["timestamps"]
]
except:
error_msg = f"---------> [ERROR] Some images missing in {key}, skip."
print(error_msg)
error_logs.append(error_msg)
continue
# Add the key to the example.
example["key"] = "dl3dv_" + key
chunk.append(example)
chunk_size += num_bytes
if chunk_size >= TARGET_BYTES_PER_CHUNK:
save_chunk()
if chunk_size > 0:
save_chunk()
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