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"""
This file is adapted from https://github.com/Fyusion/LLFF.
"""
import os
import sys
import argparse
import subprocess
def run_colmap(basedir, match_type):
logfile_name = os.path.join(basedir, 'colmap_output.txt')
logfile = open(logfile_name, 'w')
feature_extractor_args = [
'colmap', 'feature_extractor',
'--database_path', os.path.join(basedir, 'database.db'),
'--image_path', os.path.join(basedir, 'images'),
'--ImageReader.single_camera', '1'
]
feat_output = ( subprocess.check_output(feature_extractor_args, universal_newlines=True) )
logfile.write(feat_output)
print('Features extracted')
exhaustive_matcher_args = [
'colmap', match_type,
'--database_path', os.path.join(basedir, 'database.db'),
]
match_output = ( subprocess.check_output(exhaustive_matcher_args, universal_newlines=True) )
logfile.write(match_output)
print('Features matched')
p = os.path.join(basedir, 'sparse')
if not os.path.exists(p):
os.makedirs(p)
mapper_args = [
'colmap', 'mapper',
'--database_path', os.path.join(basedir, 'database.db'),
'--image_path', os.path.join(basedir, 'images'),
'--output_path', os.path.join(basedir, 'sparse'), # --export_path changed to --output_path in colmap 3.6
'--Mapper.num_threads', '16',
'--Mapper.init_min_tri_angle', '4',
'--Mapper.multiple_models', '0',
'--Mapper.extract_colors', '0',
]
map_output = ( subprocess.check_output(mapper_args, universal_newlines=True) )
logfile.write(map_output)
logfile.close()
print('Sparse map created')
print( 'Finished running COLMAP, see {} for logs'.format(logfile_name) )
def gen_poses(basedir, match_type):
files_needed = ['{}.bin'.format(f) for f in ['cameras', 'images', 'points3D']]
if os.path.exists(os.path.join(basedir, 'sparse/0')):
files_had = os.listdir(os.path.join(basedir, 'sparse/0'))
else:
files_had = []
if not all([f in files_had for f in files_needed]):
print( 'Need to run COLMAP' )
run_colmap(basedir, match_type)
else:
print('Don\'t need to run COLMAP')
return True
if __name__=='__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--match_type', type=str,
default='exhaustive_matcher', help='type of matcher used. Valid options: \
exhaustive_matcher sequential_matcher. Other matchers not supported at this time')
parser.add_argument('scenedir', type=str,
help='input scene directory')
args = parser.parse_args()
if args.match_type != 'exhaustive_matcher' and args.match_type != 'sequential_matcher':
print('ERROR: matcher type ' + args.match_type + ' is not valid. Aborting')
sys.exit()
gen_poses(args.scenedir, args.match_type)
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