公开(公告)号：US20160300340A1

公开(公告)日：2016-10-13

申请号：US15182750

申请日：2016-06-15

Applicant: QUALCOMM Incorporated

Inventor： Prince GUPTA ,  Daniel WAGNER ,  Gerhard REITMAYR ,  Alessandro MULLONI

IPC: G06T7/00 ,  G06T19/00 ,  G01B11/00

CPC classification number: G01B11/002 ,  G06T7/70 ,  G06T19/006 ,  G06T2207/10028

Abstract: A method of determining a reference coordinate system includes: obtaining information indicative of a direction of gravity relative to a device; and converting an orientation of a device coordinate system using the direction of gravity relative to the device to produce the reference coordinate system. The method may also include setting an origin of the reference coordinate system and/or determining a scale value of the reference coordinate system. The method may also include refining the reference coordinate system.

Abstract translation: 确定参考坐标系的方法包括：获得指示相对于设备的重力方向的信息; 以及使用相对于所述装置的重力方向来转换装置坐标系的方向以产生所述参考坐标系。 该方法还可以包括设置参考坐标系的原点和/或确定参考坐标系的比例值。 该方法还可以包括改进参考坐标系。

公开(公告)号：US20150243069A1

公开(公告)日：2015-08-27

申请号：US14625465

申请日：2015-02-18

Applicant: QUALCOMM Incorporated

Inventor： Daniel KNOBLAUCH ,  Alessandro MULLONI ,  Daniel WAGNER

IPC: G06T15/04 ,  G06T17/10 ,  G06T17/20 ,  G06T5/00

CPC classification number: G06T15/04 ,  G06T5/003 ,  G06T11/001 ,  G06T17/10 ,  G06T17/205 ,  G06T2200/04 ,  G06T2200/28 ,  G06T2210/61

Abstract: One disclosed example method for view independent color equalized 3D scene texturing includes capturing a plurality of keyframes of an object; accessing a 3D representation of the object comprising a surface mesh model for the object, the surface mesh model comprising a plurality of polygons; for each polygon, assigning one of the plurality of keyframes to the polygon based on one or more image quality characteristics associated with a portion of the keyframe corresponding to the polygon; reducing a number of assigned keyframes by changing associations between assigned keyframes; and for each polygon of the surface mesh model having an assigned keyframe: equalizing a texture color of at least a portion of the polygon based at least in part on one or more image quality characteristics of the plurality of keyframes associated with the polygon; and assigning the equalized texture color to the 3D representation of the object.

Abstract translation: 用于查看独立颜色均衡的3D场景纹理的一个公开的示例性方法包括捕获对象的多个关键帧; 访问包括用于对象的表面网格模型的对象的3D表示，所述表面网格模型包括多个多边形; 对于每个多边形，基于与所述多边形对应的关键帧的一部分相关联的一个或多个图像质量特征，将所述多个关键帧中的一个分配给所述多边形; 通过改变分配的关键帧之间的关联来减少多个分配的关键帧; 并且对于具有分配关键帧的表面网格模型的每个多边形：至少部分地基于与多边形相关联的多个关键帧的一个或多个图像质量特性来均衡多边形的至少一部分的纹理颜色; 并将均衡的纹理颜色分配给对象的3D表示。

公开(公告)号：US20140327792A1

公开(公告)日：2014-11-06

申请号：US14268784

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Alessandro MULLONI ,  Gerhard REITMAYR ,  Mahesh RAMACHANDRAN ,  Daniel WAGNER

IPC: H04N5/232

CPC classification number: H04N5/23296 ,  G01C25/005 ,  G06T7/73 ,  G06T7/80 ,  G06T2207/20092 ,  H04N5/23203

Abstract: Embodiments disclosed pertain to systems, method s and apparatus for the initialization of Computer Vision (CV) applications on user devices (UDs) comprising a camera and a display. In some embodiments, an optimal camera trajectory for initialization of a Computer Vision (CV) application may be determined based on an initial camera pose and an estimated pivot distance. For example, the initial camera pose may be estimated based on a first image captured by the camera. Further, the display may be updated in real-time with an indication of a desired movement direction for the camera. In some embodiments, the indication of desired movement direction may be based, in part, on a current camera pose and the optimal trajectory, where the current camera pose may be estimated based on a current image captured by the camera.

Abstract translation: 所公开的实施例涉及用于在包括相机和显示器的用户设备（UD）上初始化计算机视觉（CV）应用的系统，方法和装置。 在一些实施例中，用于初始化计算机视觉（CV）应用的最佳相机轨迹可以基于初始相机姿态和估计的枢转距离来确定。 例如，可以基于由相机拍摄的第一图像来估计初始相机姿态。 此外，可以用相机的期望的移动方向的指示来实时地更新显示。 在一些实施例中，期望移动方向的指示可以部分地基于当前摄像机姿态和最佳轨迹，其中当前摄像机姿态可以基于由照相机拍摄的当前图像来估计。

公开(公告)号：US20140123507A1

公开(公告)日：2014-05-08

申请号：US13787525

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Prince GUPTA ,  Daniel WAGNER ,  Gerhard REITMAYR ,  Alessandro MULLONI

IPC: G01B11/00

CPC classification number: G01B11/002 ,  G06T7/70 ,  G06T19/006 ,  G06T2207/10028

Abstract: A method of determining a reference coordinate system includes: obtaining information indicative of a direction of gravity relative to a device; and converting an orientation of a device coordinate system using the direction of gravity relative to the device to produce the reference coordinate system. The method may also include setting an origin of the reference coordinate system and/or determining a scale value of the reference coordinate system. The method may also include refining the reference coordinate system.

Abstract translation: 确定参考坐标系的方法包括：获得指示相对于设备的重力方向的信息; 以及使用相对于所述装置的重力方向来转换装置坐标系的方向以产生所述参考坐标系。 该方法还可以包括设置参考坐标系的原点和/或确定参考坐标系的比例值。 该方法还可以包括改进参考坐标系。