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公开(公告)号：US20130314441A1
公开(公告)日：2013-11-28
申请号：US13720735
申请日：2012-12-19
Applicant: QUALCOMM INCORPORATED
Inventor： Raphael Grasset , Markus Tatzgern , Tobias Langlotz , Denis Kalkofen , Dieter Schmalstieg
IPC: G06T1/00
CPC classification number: G06T1/00 , G06T7/73 , G06T11/00 , G06T11/60 , G06T19/006
Abstract: A mobile device uses an image-driven view management approach for annotating images in real-time. An image-based layout process used by the mobile device computes a saliency map and generates an edge map from a frame of a video stream. The saliency map may be further processed by applying thresholds to reduce the number of saliency levels. The saliency map and edge map are used together to determine a layout position of labels to be rendered over the video stream. The labels are displayed in the layout position until a change of orientation of the camera that exceeds a threshold is detected. Additionally, the representation of the label may be adjusted, e.g., based on a plurality of pixels bounded by an area that is coincident with a layout position for a label in the video frame.
Abstract translation: 移动设备使用图像驱动视图管理方法来实时注释图像。 由移动设备使用的基于图像的布局处理计算显着图并且从视频流的帧生成边缘图。 可以通过应用阈值来进一步处理显着图，以减少显着性水平的数量。 显着性图和边缘图一起用于确定要在视频流上渲染的标签的布局位置。 标签以布局位置显示，直到检测到相机超过阈值的方向改变为止。 此外，可以例如基于由与视频帧中的标签的布局位置重合的区域限定的多个像素来调整标签的表示。
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公开(公告)号：US11321905B2
公开(公告)日：2022-05-03
申请号：US17037566
申请日：2020-09-29
Applicant: QUALCOMM Incorporated
Inventor： Mina Ayman Saleh Yanni Makar , Soumyajit Bijankumar Deb , Bojan Vrcelj , Arjun Sitaram , Dieter Schmalstieg
Abstract: Graphics processing in a client device includes receiving, as part of a vector streaming split rendering process, a bit stream encoding a sequence of shading atlases of the process. Each shading atlas includes blocks. The client decodes a particular shading atlas of the sequence of shading atlases, and determines that a particular block of the particular shading atlas was unsuccessfully decoded. The client identifies a stored block of a prior shading atlas of the sequence of shading atlases as a successfully decoded earlier version of the particular block. The client renders the particular shading atlas using the stored block instead of the particular block.
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公开(公告)号：US10796458B2
公开(公告)日：2020-10-06
申请号：US15959359
申请日：2018-04-23
Applicant: QUALCOMM Incorporated
Inventor： Vinay Melkote Krishnaprasad , Ajit Venkat Rao , Bojan Vrcelj , Dieter Schmalstieg
IPC: G06T9/00 , G06T9/40 , G06T17/00 , H04N19/94 , H04N19/597
Abstract: Aspects of the present disclosure provide a method for compressing a point cloud. The method includes determining a sub-division technique for the volume based on one or more numbers derived from a distribution of points in the volume, dividing the volume into a number of sub-volumes according to the sub-division technique, and determining whether each sub-volume of the sub-volumes is occupied by at least one point. The method includes generating a bit sequence for the volume comprising a control code that is based on the sub-division technique and an occupancy indicator that indicates whether or not each sub-volume is occupied by at least one point.
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公开(公告)号：US20150262029A1
公开(公告)日：2015-09-17
申请号：US14645675
申请日：2015-03-12
Applicant: QUALCOMM Incorporated
Inventor： Christian Pirchheim , Clemens Arth , Dieter Schmalstieg
CPC classification number: G06K9/52 , G06K9/00624 , G06T3/00 , G06T7/20 , G06T7/70 , G06T17/00 , G06T2207/10016 , G06T2207/30244
Abstract: Techniques are presented for monocular visual simultaneous localization and mapping (SLAM) based on detecting a translational motion in the movement of the camera using at least one motion sensor, while the camera is performing panoramic SLAM, and initializing a three dimensional map for tracking of finite features. Motion sensors may include one or more sensors, including inertial (gyroscope, accelerometer), magnetic (compass), vision (camera) or any other sensors built into mobile devices.
Abstract translation: 针对单目视觉同步定位和映射（SLAM）提出了基于使用至少一个运动传感器检测相机运动中的平移运动的技术，而相机正在执行全景SLAM，以及初始化用于跟踪有限的三维图 特征。 运动传感器可以包括一个或多个传感器，包括惯性（陀螺仪，加速度计），磁（罗盘），视觉（摄像机）或内置于移动设备中的任何其他传感器。
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公开(公告)号：US09031283B2
公开(公告)日：2015-05-12
申请号：US13719012
申请日：2012-12-18
Applicant: QUALCOMM Incorporated
Inventor： Clemens Arth , Alessandro Mulloni , Gerhard Reitmayr , Dieter Schmalstieg
CPC classification number: G06K9/00671 , G06T7/75 , G06T7/80 , G06T2207/10016 , G06T2207/30244 , H04N5/23238
Abstract: A mobile device uses vision and orientation sensor data jointly for six degree of freedom localization, e.g., in wide-area environments. An image or video stream is captured while receiving geographic orientation data and may be used to generate a panoramic cylindrical map of an environment. A bin of model features stored in a database is accessed based on the geographic orientation data. The model features are from a pre-generated reconstruction of the environment produced from extracted features from a plurality of images of the environment. The reconstruction is registered to a global orientation and the model features are stored in bins based on similar geographic orientations. Features from the panoramic cylindrical map are matched to model features in the bin to produce a set of corresponding features, which are used to determine a position and an orientation of the camera.
Abstract translation: 移动设备使用视觉和姿态传感器数据联合进行六自由度定位，例如在广域环境中。 捕获图像或视频流，同时接收地理取向数据，并且可以用于生成环境的全景圆柱图。 基于地理位置数据访问存储在数据库中的模型特征的一个bin。 模型特征来自从环境的多个图像的提取特征产生的环境的预先生成的重建。 重建被注册到全局方向，并且基于类似的地理位置将模型特征存储在箱中。 全景圆柱形地图的特征与仓中的模型特征相匹配，以产生一组相应的特征，用于确定相机的位置和方向。
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Patent Agency Ranking
公开(公告)号：US20150070387A1
公开(公告)日：2015-03-12
申请号：US14250544
申请日：2014-04-11
Applicant: QUALCOMM Incorporated
Inventor： Dieter Schmalstieg , Gerhard Reitmayr , Thanh Quoc Nguyen , Raphael David Andre Grasset , Tobias Martin Langlotz , Hartmut Seichter
IPC: G06T19/00
CPC classification number: G06T19/006 , G06T7/12 , G06T17/00 , G06T2207/10028 , G06T2207/20096 , G06T2207/20101 , H04N13/00
Abstract: Techniques are presented for constructing a digital representation of a physical environment. In some embodiments, a method includes obtaining image data indicative of the physical environment; receiving gesture input data from a user corresponding to at least one location in the physical environment, based on the obtained image data; detecting at least one discontinuity in the physical environment near the at least one location corresponding to the received gesture input data; and generating a digital surface corresponding to a surface in the physical environment, based on the received gesture input data and the at least one discontinuity.
Abstract translation: 提出了构建物理环境的数字表示的技术。 在一些实施例中，一种方法包括获得指示物理环境的图像数据; 基于所获得的图像数据，从与所述物理环境中的至少一个位置对应的用户接收手势输入数据; 检测与所接收的手势输入数据相对应的至少一个位置附近的物理环境中的至少一个不连续性; 以及基于所接收的手势输入数据和所述至少一个不连续性，生成对应于所述物理环境中的表面的数字表面。
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公开(公告)号：US20140016821A1
公开(公告)日：2014-01-16
申请号：US13719012
申请日：2012-12-18
Applicant: QUALCOMM INCORPORATED
Inventor： Clemens Arth , Alessandro Mulloni , Gerhard Reitmayr , Dieter Schmalstieg
IPC: G06K9/00
CPC classification number: G06K9/00671 , G06T7/75 , G06T7/80 , G06T2207/10016 , G06T2207/30244 , H04N5/23238
Abstract: A mobile device uses vision and orientation sensor data jointly for six degree of freedom localization, e.g., in wide-area environments. An image or video stream is captured while receiving geographic orientation data and may be used to generate a panoramic cylindrical map of an environment. A bin of model features stored in a database is accessed based on the geographic orientation data. The model features are from a pre-generated reconstruction of the environment produced from extracted features from a plurality of images of the environment. The reconstruction is registered to a global orientation and the model features are stored in bins based on similar geographic orientations. Features from the panoramic cylindrical map are matched to model features in the bin to produce a set of corresponding features, which are used to determine a position and an orientation of the camera.
Abstract translation: 移动设备使用视觉和姿态传感器数据联合进行六自由度定位，例如在广域环境中。 捕获图像或视频流，同时接收地理取向数据，并且可以用于生成环境的全景圆柱图。 基于地理位置数据访问存储在数据库中的模型特征的一个bin。 模型特征来自从环境的多个图像的提取特征产生的环境的预先生成的重建。 重建被注册到全局方向，并且基于类似的地理位置将模型特征存储在箱中。 全景圆柱形地图的特征与仓中的模型特征相匹配，以产生一组相应的特征，用于确定相机的位置和方向。
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公开(公告)号：US11631212B2
公开(公告)日：2023-04-18
申请号：US17362849
申请日：2021-06-29
Applicant: QUALCOMM Incorporated
Inventor： Dieter Schmalstieg , Bernhard Kerbl , Philip Voglreiter
Abstract: The present disclosure relates to methods and apparatus for graphics processing. Aspects of the present disclosure can determine at least one scene including one or more viewpoints. Also, aspects of the present disclosure can divide the at least one scene into a plurality of zones based on each of the one or more viewpoints. Further, aspects of the present disclosure can determine whether a zone based on one viewpoint of the one or more viewpoints is substantially similar to a zone based on another viewpoint of the one or more viewpoints. Aspects of the present disclosure can also generate a geometry buffer for each of the plurality of zones based on the one or more viewpoints. Moreover, aspects of the present disclosure can combine the geometry buffers for each of the plurality of zones based on the one or more viewpoints.
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公开(公告)号：US20210304483A1
公开(公告)日：2021-09-30
申请号：US16828808
申请日：2020-03-24
Applicant: QUALCOMM Incorporated
Inventor： Joseph Daniel Garvey , Dieter Schmalstieg , Bojan Vrcelj
Abstract: Methods, systems, and devices for computer graphics are described. A device may perform a shadow rendering operation in an object-space shading pipeline for a set of potentially visible surfaces. The device may represent the potentially visible surfaces in an atlas. The device may determine a set of world-space coordinates corresponding to the one or more potentially visible surfaces and may store the set of world-space coordinates in a geometry buffer (G-buffer). The device may determine a number of shadow factors associated with the potentially visible surfaces based on a transformation of the world-space coordinates stored in the G-buffer and a set of depth values associated with each shadow caster present in a scene. The device may store the shadow factors in an atlas shadow mask and perform a shading of the potentially visible surfaces in the atlas based on the atlas shadow mask.
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公开(公告)号：US10789776B2
公开(公告)日：2020-09-29
申请号：US15902248
申请日：2018-02-22
Applicant: QUALCOMM Incorporated
Inventor： Dieter Schmalstieg , Gerhard Reitmayr , Thanh Quoc Nguyen , Raphael Grasset , Tobias Langlotz , Hartmut Seichter
Abstract: Techniques are presented for constructing a digital representation of a physical environment. In some embodiments, a method includes obtaining image data indicative of the physical environment; receiving gesture input data from a user corresponding to at least one location in the physical environment, based on the obtained image data; detecting at least one discontinuity in the physical environment near the at least one location corresponding to the received gesture input data; and generating a digital surface corresponding to a surface in the physical environment, based on the received gesture input data and the at least one discontinuity.
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