open3d.t.pipelines.slam.Model

class open3d.t.pipelines.slam.Model

Volumetric model for Dense SLAM.

__init__(*args, **kwargs)

Overloaded function.

  1. __init__(self, arg0)

    Copy constructor

Parameters

arg0 (open3d.t.pipelines.slam.Model) –

  1. __init__(self)

  2. __init__(self, voxel_size, block_resolution=16, block_count: int = 10000, transformation=(with default value), , device=CUDA:0)

    Constructor of a VoxelBlockGrid

Parameters

  • voxel_size (float) – The voxel size of the volume in meters.

  • (int (block_resolution) – int = 10000): Resolution of local dense voxel blocks. By default 16 is used to create 16^3 voxel blocks.

  • optional – int = 10000): Resolution of local dense voxel blocks. By default 16 is used to create 16^3 voxel blocks.

  • default=16 – int = 10000): Resolution of local dense voxel blocks. By default 16 is used to create 16^3 voxel blocks.

  • block_count – int = 10000): Resolution of local dense voxel blocks. By default 16 is used to create 16^3 voxel blocks.

  • transformation (open3d.core.Tensor, optional) –

    A 4x4 3D transformation matrix. Default value:

    [[1 0 0 0], [0 1 0 0], [0 0 1 0], [0 0 0 1]] Tensor[shape={4, 4}, stride={4, 1}, Float64

    ()

  • (open3d.core.Device (device) – 0): The CPU or CUDA device used for the object.

  • optional – 0): The CPU or CUDA device used for the object.

  • default=CUDA – 0): The CPU or CUDA device used for the object.

extract_pointcloud(self, weight_threshold=3.0, estimated_number=- 1)

Extract point cloud from the volumetric model.

Parameters

  • weight_threshold (float, optional, default=3.0) – Weight threshold to filter outlier voxel blocks.

  • estimated_number (int, optional, default=-1) – Estimated number of surface points. Use -1 if no estimation is available.

Returns

open3d.t.geometry.PointCloud

extract_trianglemesh(self, weight_threshold=3.0, estimated_number=- 1)

Extract triangle mesh from the volumetric model.

Parameters

  • weight_threshold (float, optional, default=3.0) – Weight threshold to filter outlier voxel blocks.

  • estimated_number (int, optional, default=-1) – Estimated number of surface points. Use -1 if no estimation is available.

Returns

open3d.t.geometry.TriangleMesh

get_current_frame_pose(self: open3d.cpu.pybind.t.pipelines.slam.Model) → open3d.cpu.pybind.core.Tensor
get_hashmap(self: open3d.cpu.pybind.t.pipelines.slam.Model) → open3d.cpu.pybind.core.HashMap

Get the underlying hash map from 3D coordinates to voxel blocks.

integrate(self, input_frame, depth_scale=1000.0, depth_max=3.0, trunc_voxel_multiplier=8.0)

Integrate an input frame to a volume.

Parameters

  • input_frame (open3d.t.pipelines.slam.Frame) – The frame that contains raw depth and optionally images with the same size from the input.

  • depth_scale (float, optional, default=1000.0) – The scale factor to convert raw depth into meters.

  • depth_max (float, optional, default=3.0) – The max clipping depth to filter noisy observations too far.

  • trunc_voxel_multiplier (float, optional, default=8.0) – Truncation distance multiplier in voxel size for signed distance. For instance, –trunc_voxel_multiplier=8 with –voxel_size=0.006(m) creates a truncation distance of 0.048(m).

Returns

None

synthesize_model_frame(self, model_frame, depth_scale=1000.0, depth_min=0.1, depth_max=3.0, trunc_voxel_multiplier=8.0, enable_color=False, weight_threshold=- 1.0)

Synthesize frame from the volumetric model using ray casting.

Parameters

  • model_frame (open3d.t.pipelines.slam.Frame) – The frame that contains ray casted depth and optionally color from the volumetric model.

  • depth_scale (float, optional, default=1000.0) – The scale factor to convert raw depth into meters.

  • depth_min (float, optional, default=0.1) – The min clipping depth.

  • depth_max (float, optional, default=3.0) – The max clipping depth to filter noisy observations too far.

  • trunc_voxel_multiplier (float, optional, default=8.0) – Truncation distance multiplier in voxel size for signed distance. For instance, –trunc_voxel_multiplier=8 with –voxel_size=0.006(m) creates a truncation distance of 0.048(m).

  • enable_color (bool, optional, default=False) –

  • weight_threshold (float, optional, default=-1.0) – Weight threshold to filter outlier voxel blocks.

Returns

None

track_frame_to_model(self, input_frame, model_frame, depth_scale=1000.0, depth_max=3.0, depth_diff=0.07, method=<Method.PointToPlane: 0>, criteria=[OdometryConvergenceCriteria[max_iteration=6, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06]., OdometryConvergenceCriteria[max_iteration=3, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06]., OdometryConvergenceCriteria[max_iteration=1, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06].])

Track input frame against raycasted frame from model.

Parameters

  • input_frame (open3d.t.pipelines.slam.Frame) – The frame that contains raw depth and optionally images with the same size from the input.

  • model_frame (open3d.t.pipelines.slam.Frame) – The frame that contains ray casted depth and optionally color from the volumetric model.

  • depth_scale (float, optional, default=1000.0) – The scale factor to convert raw depth into meters.

  • depth_max (float, optional, default=3.0) – The max clipping depth to filter noisy observations too far.

  • depth_diff (float, optional, default=0.07) –

  • (open3d.t.pipelines.odometry.Method (method) – 0>)

  • optional – 0>)

  • default=<Method.PointToPlane – 0>)

  • criteria (List[open3d.t.pipelines.odometry.OdometryConvergenceCriteria], optional, default=[OdometryConvergenceCriteria[max_iteration=6, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06], OdometryConvergenceCriteria[max_iteration=3, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06], OdometryConvergenceCriteria[max_iteration=1, relative_rmse=1.000000e-06, relative_fitness=1.000000e-06]]) –

Returns

open3d.t.pipelines.odometry.OdometryResult

update_frame_pose(self: open3d.cpu.pybind.t.pipelines.slam.Model, arg0: int, arg1: open3d.cpu.pybind.core.Tensor) → None
property frame_id

Get the current frame index in a sequence.

property frustum_block_coords

Active block coordinates from prior integration

property transformation_frame_to_world

Get the 4x4 transformation matrix from the current frame to the world frame.

property voxel_grid

Get the maintained VoxelBlockGrid.