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    PRE-SEGMENT POINT CLOUD DATA TO RUN REAL-TIME SHAPE EXTRACTION FASTER
    12.
    发明申请
    PRE-SEGMENT POINT CLOUD DATA TO RUN REAL-TIME SHAPE EXTRACTION FASTER 有权
    预分点数据运行实时形状提取更快

    公开(公告)号：US20150125071A1

    公开(公告)日：2015-05-07

    申请号：US14536266

    申请日：2014-11-07

    Applicant: Autodesk, Inc.

    Inventor： Ronald Poelman ,  Oytun Akman

    IPC: G06T7/00 ,  G06K9/46

    CPC classification number: G06K9/4604 ,  G06K9/6218 ,  G06T7/12 ,  G06T7/42 ,  G06T15/04 ,  G06T15/40 ,  G06T15/405 ,  G06T17/005 ,  G06T2207/10012 ,  G06T2207/20112 ,  G06T2210/12 ,  G06T2210/56

    Abstract: A method, apparatus, system, and computer readable storage medium provide the ability to pre-segment point cloud data. Point cloud data is obtained and segmented. The segment information is stored. An indexing structure is created and instantiated with the point cloud data and the segment information. Based on the segment information, a determination is made regarding points needed for shape extraction. Needed points are fetched from the indexing structure an used to extract shapes. The extracted shapes are used to cull points from the point cloud data.

    Abstract translation: 方法，装置，系统和计算机可读存储介质提供预分段点云数据的能力。 点云数据获取并分段。 存储段信息。 使用点云数据和段信息创建并实例化索引结构。 根据分段信息，确定形状提取所需的点。 需要的点是从用于提取形状的索引结构中获取的。 提取的形状用于从点云数据中剔除点数。

    Three-dimensional (3D) model creation and incremental model refinement from laser scans
    13.
    发明授权
    Three-dimensional (3D) model creation and incremental model refinement from laser scans 有权

    公开(公告)号：US11295522B2

    公开(公告)日：2022-04-05

    申请号：US17087871

    申请日：2020-11-03

    Applicant: Autodesk, Inc.

    Inventor： Oytun Akman ,  Ronald Poelman ,  Yan Fu

    IPC: G06T17/10 ,  G06T7/11 ,  G06T5/00 ,  G06T7/13 ,  G06T15/06 ,  G01S17/42 ,  G01S17/89 ,  G06T15/10

    Abstract: A method, system, and apparatus create a 3D CAD model. Scan data from two or more structured scans of a real-world scene are acquired and each scan processed independently by segmenting the scan data into multiple segments, filtering the scan data, and fitting an initial model that is used as a model candidate. Model candidates are clustered into groups and a refined model is fit onto the model candidates in the same group. A grid of cells representing points is mapped over the refined model. Each of the grid cells is labeled by processing each scan independently, labeling each cell located within the refined model as occupied, utilizing back projection to label remaining cells as occluded or empty. The labels from multiple scans are then combined. Based on the labeling, model details are extracted to further define and complete the refined model.

    Automatic registration
    14.
    发明授权
    Automatic registration 有权

    公开(公告)号：US10042899B2

    公开(公告)日：2018-08-07

    申请号：US15625499

    申请日：2017-06-16

    Applicant: Autodesk, Inc.

    Inventor： Oytun Akman ,  Ronald Poelman ,  Seth Koterba

    IPC: G06F17/30 ,  G06K9/46 ,  G06T17/20

    Abstract: A method, system, apparatus, article of manufacture, and computer-readable storage medium provide the ability to merge multiple point cloud scans. A first raw scan file and a second raw scan file (each including multiple points) are imported. The scan files are segmented by extracting segments based on geometry in the scene. The segments are filtered to reduce a number of segments and identify features. A set of candidate matching feature pairs are acquired by coarsely registering features from one scan to features from another scan. The candidate pairs are refined by improving alignment based on corresponding points in the features. The candidate pairs are scored and then merged based on the scores.

    AUTOMATIC REGISTRATION
    15.
    发明申请
    AUTOMATIC REGISTRATION 审中-公开

    公开(公告)号：US20170286430A1

    公开(公告)日：2017-10-05

    申请号：US15625499

    申请日：2017-06-16

    Applicant: Autodesk, Inc.

    Inventor： Oytun Akman ,  Ronald Poelman ,  Seth Koterba

    IPC: G06F17/30 ,  G06T17/20 ,  G06K9/46

    CPC classification number: G06F17/3053 ,  G06F17/30247 ,  G06F17/30598 ,  G06K9/32 ,  G06K9/46 ,  G06K9/4604 ,  G06K9/6204 ,  G06T17/00 ,  G06T17/20 ,  G06T2210/56

    Abstract: A method, system, apparatus, article of manufacture, and computer-readable storage medium provide the ability to merge multiple point cloud scans. A first raw scan file and a second raw scan file (each including multiple points) are imported. The scan files are segmented by extracting segments based on geometry in the scene. The segments are filtered to reduce a number of segments and identify features. A set of candidate matching feature pairs are acquired by coarsely registering features from one scan to features from another scan. The candidate pairs are refined by improving alignment based on corresponding points in the features. The candidate pairs are scored and then merged based on the scores.

    OCCLUSION RENDER MECHANISM FOR POINT CLOUDS
    17.
    发明申请
    OCCLUSION RENDER MECHANISM FOR POINT CLOUDS 有权
    OSTLUSION渲染机制的点云

    公开(公告)号：US20150123968A1

    公开(公告)日：2015-05-07

    申请号：US14536232

    申请日：2014-11-07

    Applicant: Autodesk, Inc.

    Inventor： Paulus Jacobus Holverda ,  Ronald Poelman

    IPC: G06T15/04 ,  G06T15/40 ,  G06T17/00 ,  G06T15/30

    CPC classification number: G06K9/4604 ,  G06K9/6218 ,  G06T7/12 ,  G06T7/42 ,  G06T15/04 ,  G06T15/40 ,  G06T15/405 ,  G06T17/005 ,  G06T2207/10012 ,  G06T2207/20112 ,  G06T2210/12 ,  G06T2210/56

    Abstract: A method, apparatus, system, article of manufacture, and computer readable storage medium provide the ability to render point cloud data. After obtaining point cloud data, polygons are fit to the point cloud data. A texture atlas is created for each of the polygons. A lookup table is generated from the texture atlases and maps each pixel to a corresponding texture location. When a scene is loaded for rendering/processing, the polygons and texture atlas are loaded and projected into an off-screen buffer that defines a depth map of the scene with approximations of a depth per pixel in screen space. The off-screen buffer is used as a lookup table to determine texture data to be rendered for the scene.

    Abstract translation: 方法，装置，系统，制品和计算机可读存储介质提供渲染点云数据的能力。 获得点云数据后，多边形适合点云数据。 为每个多边形创建纹理图集。 从纹理图集生成查找表，并将每个像素映射到相应的纹理位置。 当加载场景进行渲染/处理时，多边形和纹理图集被加载并投影到屏幕外缓冲区中，该屏幕缓冲区用屏幕空间中每像素的深度近似定义场景的深度图。 离屏缓冲器用作查找表以确定要为场景渲染的纹理数据。

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