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train.py
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train.py
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#
# Copyright (C) 2023, Inria
# GRAPHDECO research group, https://team.inria.fr/graphdeco
# All rights reserved.
#
# This software is free for non-commercial, research and evaluation use
# under the terms of the LICENSE.md file.
#
# For inquiries contact [email protected]
#
import os
import torch
from scene import Scene
import uuid
from utils.image_utils import psnr, lpips, alex_lpips
from utils.image_utils import ssim as ssim_func
from piq import LPIPS
lpips = LPIPS()
from argparse import Namespace
from pytorch_msssim import ms_ssim
try:
from torch.utils.tensorboard import SummaryWriter
TENSORBOARD_FOUND = True
except ImportError:
TENSORBOARD_FOUND = False
def prepare_output_and_logger(args):
if not args.model_path:
if os.getenv('OAR_JOB_ID'):
unique_str = os.getenv('OAR_JOB_ID')
else:
unique_str = str(uuid.uuid4())
args.model_path = os.path.join("./output/", unique_str[0:10])
# Set up output folder
print("Output folder: {}".format(args.model_path))
os.makedirs(args.model_path, exist_ok=True)
with open(os.path.join(args.model_path, "cfg_args"), 'w') as cfg_log_f:
cfg_log_f.write(str(Namespace(**vars(args))))
# Create Tensorboard writer
tb_writer = None
if TENSORBOARD_FOUND:
tb_writer = SummaryWriter(args.model_path)
else:
print("Tensorboard not available: not logging progress")
return tb_writer
def training_report(tb_writer, iteration, Ll1, loss, l1_loss, elapsed, testing_iterations, scene: Scene, renderFunc, renderArgs, deform, load2gpu_on_the_fly, progress_bar=None):
if tb_writer:
tb_writer.add_scalar('train_loss_patches/l1_loss', Ll1.item(), iteration)
tb_writer.add_scalar('train_loss_patches/total_loss', loss.item(), iteration)
tb_writer.add_scalar('iter_time', elapsed, iteration)
test_psnr = 0.0
test_ssim = 0.0
test_lpips = 1e10
test_ms_ssim = 0.0
test_alex_lpips = 1e10
# Report test and samples of training set
if iteration in testing_iterations:
torch.cuda.empty_cache()
validation_configs = ({'name': 'test', 'cameras': scene.getTestCameras()},
{'name': 'train',
'cameras': [scene.getTrainCameras()[idx % len(scene.getTrainCameras())] for idx in range(5, 30, 5)]})
for config in validation_configs:
if config['cameras'] and len(config['cameras']) > 0:
# images = torch.tensor([], device="cuda")
# gts = torch.tensor([], device="cuda")
psnr_list, ssim_list, lpips_list, l1_list = [], [], [], []
ms_ssim_list, alex_lpips_list = [], []
for idx, viewpoint in enumerate(config['cameras']):
if load2gpu_on_the_fly:
viewpoint.load2device()
fid = viewpoint.fid
xyz = scene.gaussians.get_xyz
if deform.name == 'mlp':
time_input = fid.unsqueeze(0).expand(xyz.shape[0], -1)
elif deform.name == 'node':
time_input = deform.deform.expand_time(fid)
else:
time_input = 0
d_values = deform.step(xyz.detach(), time_input, feature=scene.gaussians.feature, is_training=False, motion_mask=scene.gaussians.motion_mask, camera_center=viewpoint.camera_center)
d_xyz, d_rotation, d_scaling, d_opacity, d_color = d_values['d_xyz'], d_values['d_rotation'], d_values['d_scaling'], d_values['d_opacity'], d_values['d_color']
image = torch.clamp(renderFunc(viewpoint, scene.gaussians, *renderArgs, d_xyz=d_xyz, d_rotation=d_rotation, d_scaling=d_scaling, d_opacity=d_opacity, d_color=d_color, d_rot_as_res=deform.d_rot_as_res)["render"], 0.0, 1.0)
gt_image = torch.clamp(viewpoint.original_image.to("cuda"), 0.0, 1.0)
l1_list.append(l1_loss(image[None], gt_image[None]).mean())
psnr_list.append(psnr(image[None], gt_image[None]).mean())
ssim_list.append(ssim_func(image[None], gt_image[None], data_range=1.).mean())
lpips_list.append(lpips(image[None], gt_image[None]).mean())
ms_ssim_list.append(ms_ssim(image[None], gt_image[None], data_range=1.).mean())
alex_lpips_list.append(alex_lpips(image[None], gt_image[None]).mean())
# images = torch.cat((images, image.unsqueeze(0)), dim=0)
# gts = torch.cat((gts, gt_image.unsqueeze(0)), dim=0)
if load2gpu_on_the_fly:
viewpoint.load2device('cpu')
if tb_writer and (idx < 5):
tb_writer.add_images(config['name'] + "_view_{}/render".format(viewpoint.image_name), image[None], global_step=iteration)
if iteration == testing_iterations[0]:
tb_writer.add_images(config['name'] + "_view_{}/ground_truth".format(viewpoint.image_name), gt_image[None], global_step=iteration)
l1_test = torch.stack(l1_list).mean()
psnr_test = torch.stack(psnr_list).mean()
ssim_test = torch.stack(ssim_list).mean()
lpips_test = torch.stack(lpips_list).mean()
ms_ssim_test = torch.stack(ms_ssim_list).mean()
alex_lpips_test = torch.stack(alex_lpips_list).mean()
if config['name'] == 'test' or len(validation_configs[0]['cameras']) == 0:
test_psnr = psnr_test
test_ssim = ssim_test
test_lpips = lpips_test
test_ms_ssim = ms_ssim_test
test_alex_lpips = alex_lpips_test
if progress_bar is None:
print("\n[ITER {}] Evaluating {}: L1 {} PSNR {} SSIM {} LPIPS {} MS SSIM{} ALEX_LPIPS {}".format(iteration, config['name'], l1_test, psnr_test, ssim_test, lpips_test, ms_ssim_test, alex_lpips_test))
else:
progress_bar.set_description("\n[ITER {}] Evaluating {}: L1 {} PSNR {} SSIM {} LPIPS {} MS SSIM {} ALEX_LPIPS {}".format(iteration, config['name'], l1_test, psnr_test, ssim_test, lpips_test, ms_ssim_test, alex_lpips_test))
if tb_writer:
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - l1_loss', l1_test, iteration)
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - psnr', psnr_test, iteration)
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - ssim', test_ssim, iteration)
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - lpips', test_lpips, iteration)
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - ms-ssim', test_ms_ssim, iteration)
tb_writer.add_scalar(config['name'] + '/loss_viewpoint - alex-lpips', test_alex_lpips, iteration)
if tb_writer:
tb_writer.add_histogram("scene/opacity_histogram", scene.gaussians.get_opacity, iteration)
tb_writer.add_scalar('total_points', scene.gaussians.get_xyz.shape[0], iteration)
torch.cuda.empty_cache()
return test_psnr, test_ssim, test_lpips, test_ms_ssim, test_alex_lpips