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Benchmarking Robustness of 3D Object Detection to Common Corruptions in Autonomous Driving

This repository contains the official implementation of the paper "Benchmarking Robustness of 3D Object Detection to Common Corruptions in Autonomous Driving" by Yinpeng Dong, Caixin Kang, Jinlai Zhang, Zijian Zhu, Yikai Wang, Xiao Yang, Hang Su, Xingxing Wei, Jun Zhu.

Accepted to CVPR2023. πŸ”₯

alt text

Here we only provide the functions of all corruptions in 3D object detection. The whole project is built upon MMDetection3D and OpenPCDet with necessary modifications of its source code.

Prerequisites

  • Python (3.8.2)
  • Pytorch (1.9.0)
  • numpy
  • imagecorruptions

How to use?

Select severity

The severity can be selected from [1,2,3,4,5]

LiDAR corruptions

  • LiDAR corruptions and corresponding function
corruptions function
Snow snow_sim/snow_sim_nus
Rain rain_sim
Fog fog_sim
Strong Sunlight scene_glare_noise
Density Decrease density_dec_global
Cutout cutout_local
LiDAR Crosstalk lidar_crosstalk_noise
FOV Lost fov_filter
Gaussian Noise gaussian_noise
Uniform Noise uniform_noise
Impulse Noise impulse_noise
Motion Compensation fulltrajectory_noise
Moving Object moving_noise_bbox
Local Density Decrease density_dec_bbox
Local Cutout cutout_bbox
Local Gaussian Noise gaussian_noise_bbox
Local Uniform Noise uniform_noise_bbox
Local Impulse Noise impulse_noise_bbox
Shear shear_bbox
Scale scale_bbox
Rotation rotation_bbox
Spatial Misalignment spatial_alignment_noise
Temporal Misalignment temporal_alignment_noise
# first, make sure the point cloud in a numpy array format, like N*4 or N*5
lidar = np.array([N,4])

# weather-level
from .LiDAR_corruptions import rain_sim, snow_sim, fog_sim

lidar_cor = rain_sim(lidar, severity)

# other corruption can be the same operation, like gaussian_noise,lidar_crosstalk_noise,density_dec_global,density_dec_local,cutout_local,uniform_noise

# Note that the object-level corruption need 3D bounding box information as input, like results['ann_info']['gt_bboxes_3d'] in mmdet3d

from .LiDAR_corruptions import gaussian_noise_bbox
bbox = results['ann_info']['gt_bboxes_3d']
lidar_cor = gaussian_noise_bbox(lidar, severity,bbox)


# Moreover, the temporal_alignment_noise needs ego pose information, like results['lidar2img'] in mmdet3d
from .LiDAR_corruptions import temporal_alignment_noise

noise_pose = spatial_alignment_noise(ori_pose, severity)

Camera corruptions

  • Camera corruptions and corresponding function
corruptions function
Snow ImageAddSnow
Rain ImageAddRain
Fog ImageAddFog
Strong Sunlight ImagePointAddSun
Gaussian Noise ImageAddGaussianNoise
Uniform Noise ImageAddUniformNoise
Impulse Noise ImageAddImpulseNoise
Moving Object ImageBBoxMotionBlurFrontBack/ImageBBoxMotionBlurLeftRight
Motion Blur ImageMotionBlurFrontBack/ImageMotionBlurLeftRight
Shear ImageBBoxOperation
Scale ImageBBoxOperation
Rotation ImageBBoxOperation
Spatial Misalignment spatial_alignment_noise
Temporal Misalignment temporal_alignment_noise
# weather-level
from .Camera_corruptions import ImageAddSnow,ImageAddFog,ImageAddRain
snow_sim = ImageAddSnow(severity, seed=2022)
img_bgr_255_np_uint8 = results['img'] # the img in mmdet3d loading pipeline
img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:,:,[2,1,0]]
image_aug_rgb = snow_sim(
    image=img_rgb_255_np_uint8
    )
image_aug_bgr = image_aug_rgb[:,:,[2,1,0]]
results['img'] = image_aug_bgr


# other corruption can be the same operation, like ImageAddGaussianNoise,ImageAddImpulseNoise,ImageAddUniformNoise

# Note that the object-level corruption need 3D bounding box information as input, like results['gt_bboxes_3d'] in mmdet3d
from .Camera_corruptions import ImageBBoxOperation
bbox_shear = ImageBBoxOperation(severity)
img_bgr_255_np_uint8 = results['img']
bboxes_corners = results['gt_bboxes_3d'].corners
bboxes_centers = results['gt_bboxes_3d'].center
lidar2img = results['lidar2img'] 
img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:, :, [2, 1, 0]]
c = [0.05, 0.1, 0.15, 0.2, 0.25][bbox_shear.severity - 1]
b = np.random.uniform(c - 0.05, c + 0.05) * np.random.choice([-1, 1])
d = np.random.uniform(c - 0.05, c + 0.05) * np.random.choice([-1, 1])
e = np.random.uniform(c - 0.05, c + 0.05) * np.random.choice([-1, 1])
f = np.random.uniform(c - 0.05, c + 0.05) * np.random.choice([-1, 1])
transform_matrix = torch.tensor([
    [1, 0, b],
    [d, 1, e],
    [f, 0, 1]
]).float()

image_aug_rgb = bbox_shear(
    image=img_rgb_255_np_uint8,
    bboxes_centers=bboxes_centers,
    bboxes_corners=bboxes_corners,
    transform_matrix=transform_matrix,
    lidar2img=lidar2img,
)
image_aug_bgr = image_aug_rgb[:, :, [2, 1, 0]]
results['img'] = image_aug_bgr

Examples within MMDetection3D pipeline

In the MMDetection3D pipeline, we modified the mmdetection3d/mmdet3d/datasets/pipelines/test_time_aug.py, the modification examples are:

@PIPELINES.register_module()
class CorruptionMethods(object):
    """Test-time augmentation with corruptions.

    """

    def __init__(self,
                 corruption_severity_dict=
                    {
                        'sun_sim':2,
                    },
                 ):
                 
        self.corruption_severity_dict = corruption_severity_dict
        
        if 'sun_sim' in self.corruption_severity_dict:
            np.random.seed(2022)
            severity = self.corruption_severity_dict['sun_sim']
            self.sun_sim = ImagePointAddSun(severity)
            self.sun_sim_mono = ImageAddSunMono(severity)
            
         #for multiple cameras corruption
         
        if 'object_motion_sim' in self.corruption_severity_dict:
            # for kitti and nus
            severity = self.corruption_severity_dict['object_motion_sim']
            self.object_motion_sim_frontback = ImageBBoxMotionBlurFrontBack(
                severity=severity,
                corrput_list=[0.02 * i for i in range(1, 6)],
            )
            self.object_motion_sim_leftright = ImageBBoxMotionBlurLeftRight(
                severity=severity,
                corrput_list=[0.02 * i for i in range(1, 6)],
            )
            self.object_motion_sim_frontback_mono = ImageBBoxMotionBlurFrontBackMono(
                severity=severity,
                corrput_list=[0.02 * i for i in range(1, 6)],
            )
            self.object_motion_sim_leftright_mono = ImageBBoxMotionBlurLeftRightMono(
                severity=severity,
                corrput_list=[0.02 * i for i in range(1, 6)],
            )
            
            
    
def __call__(self, results):
        """Call function to augment common corruptions.
        """
        if 'sun_sim' in self.corruption_severity_dict:
            # Common part of two datasets
            img_bgr_255_np_uint8 = results['img']  # nus:list / kitti: nparray

            if 'lidar2img' in results:
                lidar2img = results['lidar2img']  # nus: list / kitti: nparray
                use_mono_dataset = False
            elif 'cam_intrinsic' in results['img_info']:
                cam2img = results['img_info']['cam_intrinsic']  # for xxx-mono dataset
                import numpy as np
                cam2img = np.array(cam2img)
                use_mono_dataset = True
            else:
                raise AssertionError('no lidar2img or cam_intrinsic found!')

            if not use_mono_dataset:
                points_tensor = results['points'].tensor
                # different part of nus and kitti
                if type(img_bgr_255_np_uint8) == list and len(img_bgr_255_np_uint8) == 6:
                    # nus dataset
                    # only one sun
                    '''
                    nuscenes:
                    0    CAM_FRONT,
                    1    CAM_FRONT_RIGHT,
                    2    CAM_FRONT_LEFT,
                    3    CAM_BACK,
                    4    CAM_BACK_LEFT,
                    5    CAM_BACK_RIGHT
                    '''
                    img_rgb_255_np_uint8_0 = img_bgr_255_np_uint8[0][:, :, [2, 1, 0]]
                    lidar2img_0 = lidar2img[0]
                    image_aug_rgb_0, points_aug = self.sun_sim(
                        image=img_rgb_255_np_uint8_0,
                        points=points_tensor,
                        lidar2img=lidar2img_0,
                    )
                    image_aug_bgr_0 = image_aug_rgb_0[:, :, [2, 1, 0]]
                    img_bgr_255_np_uint8[0] = image_aug_bgr_0
                    results['img'] = img_bgr_255_np_uint8
                    results['points'].tensor = points_aug

                elif type(img_bgr_255_np_uint8) == list and len(img_bgr_255_np_uint8) == 5:
                    # waymo dataset
                    # only one sun
                    '''
                    nuscenes:
                    0    CAM_FRONT,
                    1    CAM_FRONT_RIGHT,
                    2    CAM_FRONT_LEFT,
                    3    CAM_BACK,
                    4    CAM_BACK_LEFT,
                    5    CAM_BACK_RIGHT
                    '''
                    img_rgb_255_np_uint8_0 = img_bgr_255_np_uint8[0][:, :, [2, 1, 0]]
                    lidar2img_0 = lidar2img[0]
                    image_aug_rgb_0, points_aug = self.sun_sim(
                        image=img_rgb_255_np_uint8_0,
                        points=points_tensor,
                        lidar2img=lidar2img_0,
                    )
                    image_aug_bgr_0 = image_aug_rgb_0[:, :, [2, 1, 0]]
                    img_bgr_255_np_uint8[0] = image_aug_bgr_0
                    results['img'] = img_bgr_255_np_uint8
                    results['points'].tensor = points_aug

                else:
                    # kitti dataset
                    img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:, :, [2, 1, 0]]
                    image_aug_rgb, points_aug = self.sun_sim(
                        image=img_rgb_255_np_uint8,
                        points=points_tensor,
                        lidar2img=lidar2img,
                    )
                    image_aug_bgr = image_aug_rgb[:, :, [2, 1, 0]]
                    results['img'] = image_aug_bgr
                    results['points'].tensor = points_aug
            else:
                # mono dataset of nus and kitti only one image
                img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:, :, [2, 1, 0]]
                image_aug_rgb = self.sun_sim_mono(
                    image=img_rgb_255_np_uint8,
                )
                image_aug_bgr = image_aug_rgb[:, :, [2, 1, 0]]
                results['img'] = image_aug_bgr

        if 'object_motion_sim' in self.corruption_severity_dict:
            img_bgr_255_np_uint8 = results['img']
            # points_tensor = results['points'].tensor
            if 'lidar2img' in results:
                lidar2img = results['lidar2img']  
                use_mono_dataset = False
            elif 'cam_intrinsic' in results['img_info']:
                cam2img = results['img_info']['cam_intrinsic']  
                import numpy as np
                cam2img = np.array(cam2img)
                use_mono_dataset = True
            else:
                raise AssertionError('no lidar2img or cam_intrinsic found!')
            
            bboxes_corners = results['gt_bboxes_3d'].corners
            bboxes_centers = results['gt_bboxes_3d'].center


            if type(bboxes_corners) == int:
                print(0)

            if type(bboxes_corners) != int:

                if not use_mono_dataset:
                    if type(img_bgr_255_np_uint8) == list and len(img_bgr_255_np_uint8) == 6:
                        '''
                        nuscenes:
                        0    CAM_FRONT,
                        1    CAM_FRONT_RIGHT,
                        2    CAM_FRONT_LEFT,
                        3    CAM_BACK,
                        4    CAM_BACK_LEFT,
                        5    CAM_BACK_RIGHT
                        '''
                        image_aug_bgr = []
                        for i in range(6):
                            img_rgb_255_np_uint8_i = img_bgr_255_np_uint8[i][:, :, [2, 1, 0]]
                            lidar2img_i = lidar2img[i]

                            if i % 3 == 0:
                                image_aug_rgb_i = self.object_motion_sim_frontback(
                                    image=img_rgb_255_np_uint8_i,
                                    bboxes_centers=bboxes_centers,
                                    bboxes_corners=bboxes_corners,
                                    lidar2img=lidar2img_i,
                                    # watch_img=True,
                                    # file_path='2.jpg'
                                )
                            else:
                                image_aug_rgb_i = self.object_motion_sim_leftright(
                                    image=img_rgb_255_np_uint8_i,
                                    bboxes_centers=bboxes_centers,
                                    bboxes_corners=bboxes_corners,
                                    lidar2img=lidar2img_i,
                                    # watch_img=True,
                                    # file_path='2.jpg'
                                )
                                # print('object_motion_sim_leftright:', time_inter)
                            image_aug_bgr_i = image_aug_rgb_i[:, :, [2, 1, 0]]
                            image_aug_bgr.append(image_aug_bgr_i)
                        results['img'] = image_aug_bgr

                    elif type(img_bgr_255_np_uint8) == list and len(img_bgr_255_np_uint8) == 5:
                        '''
                        nuscenes:
                        0    CAM_FRONT,
                        1    CAM_FRONT_RIGHT,
                        2    CAM_FRONT_LEFT,
                        3    CAM_BACK,
                        4    CAM_BACK_LEFT,
                        5    CAM_BACK_RIGHT
                        '''
                        image_aug_bgr = []
                        for i in range(5):
                            img_rgb_255_np_uint8_i = img_bgr_255_np_uint8[i][:, :, [2, 1, 0]]
                            lidar2img_i = lidar2img[i]

                            # if i % 3 == 0:
                            if i == 0:
                                image_aug_rgb_i = self.object_motion_sim_frontback(
                                    image=img_rgb_255_np_uint8_i,
                                    bboxes_centers=bboxes_centers,
                                    bboxes_corners=bboxes_corners,
                                    lidar2img=lidar2img_i,
                                    # watch_img=True,
                                    # file_path='2.jpg'
                                )
                            else:
                                image_aug_rgb_i = self.object_motion_sim_leftright(
                                    image=img_rgb_255_np_uint8_i,
                                    bboxes_centers=bboxes_centers,
                                    bboxes_corners=bboxes_corners,
                                    lidar2img=lidar2img_i,
                                    # watch_img=True,
                                    # file_path='2.jpg'
                                )
                                # print('object_motion_sim_leftright:', time_inter)
                            image_aug_bgr_i = image_aug_rgb_i[:, :, [2, 1, 0]]
                            image_aug_bgr.append(image_aug_bgr_i)
                        results['img'] = image_aug_bgr

                    else:
                        img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:, :, [2, 1, 0]]
                        # points_tensor = results['points'].tensor
                        lidar2img = results['lidar2img']
                        bboxes_corners = results['gt_bboxes_3d'].corners
                        bboxes_centers = results['gt_bboxes_3d'].center

                        image_aug_rgb = self.object_motion_sim_frontback(
                            image=img_rgb_255_np_uint8,
                            bboxes_centers=bboxes_centers,
                            bboxes_corners=bboxes_corners,
                            lidar2img=lidar2img,
                            # watch_img=True,
                            # file_path='2.jpg'
                        )
                        image_aug_bgr = image_aug_rgb[:, :, [2, 1, 0]]
                        results['img'] = image_aug_bgr

                else:
                    img_rgb_255_np_uint8 = img_bgr_255_np_uint8[:, :, [2, 1, 0]]
                    image_aug_rgb = self.object_motion_sim_frontback_mono(
                        image=img_rgb_255_np_uint8,
                        bboxes_centers=bboxes_centers,
                        bboxes_corners=bboxes_corners,
                        cam2img=cam2img,
                        # watch_img=True,
                        # file_path='2.jpg'
                    )
                    image_aug_bgr = image_aug_rgb[:, :, [2, 1, 0]]
                    results['img'] = image_aug_bgr


        
        #for lidar corruptions

        if 'gaussian_noise' in self.corruption_severity_dict:
            import numpy as np
            pl = results['points'].tensor
            severity = self.corruption_severity_dict['gaussian_noise']
           # aug_pl = pl[:,:3]
            points_aug = gaussian_noise(pl.numpy(), severity)
            pl = torch.from_numpy(points_aug)
            results['points'].tensor = pl

        #for lidar corruptions with bbox
        
        if 'cutout_bbox' in self.corruption_severity_dict:
            import numpy as np
            pl = results['points'].tensor
            data = []
            # data.append(results['gt_bboxes_3d'])
            if 'gt_bboxes_3d' in results:
                data.append(results['gt_bboxes_3d'])
            else:
                #waymo
                data.append(results['ann_info']['gt_bboxes_3d'])
            severity = self.corruption_severity_dict['cutout_bbox']
            points_aug = cutout_bbox(pl.numpy(), severity,data)
            pl = torch.from_numpy(points_aug)
            results['points'].tensor = pl        
            

Then add 'CorruptionMethods' to the test pipeline, modify the corresponding config files in mmdetection3d/configs/, the modification examples are:

test_pipeline = [
    dict(
        type='LoadPointsFromFile',
        coord_type='LIDAR',
        load_dim=5,
        use_dim=5,
        file_client_args=file_client_args),
    dict(
        type='LoadPointsFromMultiSweeps',
        sweeps_num=9,
        use_dim=[0, 1, 2, 3, 4],
        file_client_args=file_client_args,
        pad_empty_sweeps=True,
        remove_close=True),
    dict(
        type='CorruptionMethods',
        corruption_severity_dict=
            {
                'background_noise':1,
                # 'snow':2,
                # 'gaussian_noise_points':2,
            },
    ),
    ...]

Examples within OpenPCDet pipeline

modify OpenPCDet/pcdet/datasets/kitti/kitti_dataset.py, the modification examples are:

class KittiDataset(DatasetTemplate):
    # def __init__(self, dataset_cfg, class_names, training=True, root_path=None, logger=None ):
    def __init__(self, dataset_cfg, class_names, corruptions, severity, training=True, root_path=None, logger=None ):
        """
        Args:
            root_path:
            dataset_cfg:
            class_names:
            training:
            logger:
        """
        
    # load corruption type from script, self.corruptions[0] save lidar corruption type, self.corruptions[1] save image corruption type
        
    MAP = {
    'rain_sim': rain_sim,
    ...
    }
    
    # for lidar 
    def get_lidar(self, idx):
        try:
            if "bbox" in self.corruptions[0]:
                data = MAP[self.corruptions[0]](data,self.severity,idx)
            else:
                data = MAP[self.corruptions[0]](data,self.severity)
        except:
            pass
        
        return data


    # for image
    def get_image(self, idx):
        if self.corruptions[1] == 'rain_sim':
            image_add_some_func = ImageAddRain(severity=self.severity, seed=2022)
            image = image_add_some_func(image, True,'./test.png')
      
      

Getting Started in OpenPCDet

Implement Directly

  • Use the file package in OpenPCDet/ to directly use our modified OpenPCDet pipeline.

Implement by modifying OpenPCDet

  • Firstly, please complete the reproduction of OpenPCDet.

  • Then, simply modify the files in folder OpenPCDet/pcdet/datasets/kitti/ according to the one provided by us.

  • Then write the script according to the sample we provided in script/run_pvrcnn.sh and place it under OpenPCDet/tools/.

Reminder

For LiDAR corruptions

  • Among the LiDAR corruptions, KITTI-C do not include FOV Lost, Motion Compensation and Temporal Misalignment.

For Camera corruptions

  • The Camera corruptions algorithm was first designed based on MMDetection3D. Therefore, bbox related Camera corruptions (including Strong Sunlight、Shear、Scale、Rotation) cannot be directly implemented in OpenPCDet, due to the lack of bbox parameters required for processing. Our approach is to save the corruptions images processed in MMDetection3D for inference, which can also accelerate the speed of inference.

Getting Started in MMDetection3D

Implement Directly

  • Use the file package in TransFusion/ to directly use our modified MMDetection3D pipeline.
  • The running code is in Run_Corruptions.md under TransFusion/

Citation

If you find it useful, please consider citing: 😊

@misc{dong2023benchmarking,
      title={Benchmarking Robustness of 3D Object Detection to Common Corruptions in Autonomous Driving}, 
      author={Yinpeng Dong and Caixin Kang and Jinlai Zhang and Zijian Zhu and Yikai Wang and Xiao Yang and Hang Su and Xingxing Wei and Jun Zhu},
      year={2023},
      eprint={2303.11040},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}

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