Projection screen qualification and selection
    1.
    发明授权
    Projection screen qualification and selection 有权
    投影屏幕鉴定和选择

    公开(公告)号:US08840250B1

    公开(公告)日:2014-09-23

    申请号:US13348232

    申请日:2012-01-11

    IPC分类号: G03B21/26

    摘要: An augmented reality environment allows interaction between virtual and real objects. Various surfaces within the environment such as walls, tables, countertop, chairs, floor, ceiling, and so forth may be used as projection surfaces. Qualified projection surfaces are determined, and an initial projection surface is selected for use from these. This selection may take into account user preferences, user orientation, types of image to be projected, and so forth. Other qualified projection surfaces may have visual indicators projected thereon, indicating relative suitability for use as a projection surface.

    摘要翻译: 增强的现实环境允许虚拟和实际对象之间的交互。 环境中的各种表面,例如墙壁,桌子,台面,椅子,地板,天花板等都可以用作投影面。 确定合格的投影表面,并选择初始投影表面以供从这些表面使用。 该选择可以考虑用户偏好,用户取向,要投影的图像的类型等等。 其他合格的投影表面可以具有投影在其上的视觉指示符,表示用作投影表面的相对适合性。

    Foreground analysis on parametric background surfaces
    4.
    发明授权
    Foreground analysis on parametric background surfaces 有权
    参数背景面的前景分析

    公开(公告)号:US09551922B1

    公开(公告)日:2017-01-24

    申请号:US13543522

    申请日:2012-07-06

    IPC分类号: G06F3/042 G03B35/00 G06T7/00

    摘要: Techniques are described for projecting content onto a display surface and for analyzing the hand of a user that is placed over the display surface, such as when the user is making a command gesture. Based on the location and known shape of the display surface, a surface depth map is calculated corresponding to the display surface. Points of the calculated surface depth map are then subtracted from respective points an observed depth map to produce a foreground depth map corresponding to the user hand. The hand may be further characterized and tracked based on the foreground depth map.

    摘要翻译: 描述了用于将内容投影到显示表面上并且用于分析放置在显示表面上的用户的手的技术,诸如当用户正在进行命令手势时。 基于显示表面的位置和已知形状,对应于显示表面计算表面深度图。 然后从观察到的深度图的各个点减去所计算的表面深度图的点,以产生与用户手相对应的前景深度图。 可以基于前景深度图进一步表征和跟踪手。

    Pose tracking
    5.
    发明授权
    Pose tracking 有权
    姿势跟踪

    公开(公告)号:US08837778B1

    公开(公告)日:2014-09-16

    申请号:US13486664

    申请日:2012-06-01

    IPC分类号: G06K9/00

    摘要: Techniques are described for tracking the pose of a surface based on a point set representing the surface. Sequential observed poses of the surface are used as the basis for creating a mathematical model of the motion of the surface. Future motion of the surface may be predicted based on the mathematical model.

    摘要翻译: 描述了基于表示表面的点集来跟踪表面的姿态的技术。 使用表面的顺序观察姿势作为创建表面运动的数学模型的基础。 表面的未来运动可以基于数学模型来预测。

    Filling holes in depth maps
    6.
    发明申请
    Filling holes in depth maps 有权
    在深度图填充孔

    公开(公告)号:US20100208994A1

    公开(公告)日:2010-08-19

    申请号:US12658464

    申请日:2010-02-09

    IPC分类号: G06K9/34

    摘要: Various implementations relate to improving depth maps. This may be done, for example, by identifying bad depth values and modifying those values. The values may represent, for example, holes and/or noise. According to a general aspect, a segmentation is determined based on an intensity image. The intensity image is associated with a corresponding depth image that includes depth values for corresponding locations in the intensity image. The segmentation is applied to the depth image to segment the depth image into multiple regions. A depth value is modified in the depth image based on the segmentation. A two-stage iterative procedure may be used to improve the segmentation and then modify bad depth values in the improved segmentation, and iterating until a desired level of smoothness is achieved. Both stages may be based, for example, on average depth values in a segment.

    摘要翻译: 各种实现涉及改进深度图。 这可以通过例如识别不良深度值和修改这些值来完成。 这些值可以表示例如孔和/或噪声。 根据一般方面,基于强度图像来确定分割。 强度图像与包括强度图像中相应位置的深度值的对应深度图像相关联。 分割应用于深度图像,将深度图像分割成多个区域。 基于分割,在深度图像中修改深度值。 可以使用两阶段迭代程序来改进分割,然后在改进的分割中修改不良深度值,并且迭代直到实现所需的平滑度。 这两个阶段可以基于例如一段中的平均深度值。

    Shape-Based Edge Detection
    7.
    发明授权

    公开(公告)号:US10528853B1

    公开(公告)日:2020-01-07

    申请号:US13537424

    申请日:2012-06-29

    申请人: Ning Yao Qiang Liu

    发明人: Ning Yao Qiang Liu

    摘要: Techniques are described for detecting a periphery of a surface based on a point set representing the surface. The surface may correspond to a display medium upon which content is projected. A shape model may be matched and aligned to a contour of the point set. A periphery or edge of the surface and corresponding display medium may be determined based on the aligned shape model.

    Edge-based pose detection
    9.
    发明授权
    Edge-based pose detection 有权
    基于边缘的姿势检测

    公开(公告)号:US09456187B1

    公开(公告)日:2016-09-27

    申请号:US13486634

    申请日:2012-06-01

    摘要: Techniques are described for determining the pose of a surface based on a point set representing the surface. Corner models are matched to a contour of the point set using a difference minimization technique to identify corner poses of the surface. Based on the corner poses, a virtual model of the surface is created and matched to the point set to determine the pose of the surface.

    摘要翻译: 描述了基于表示表面的点集来确定表面姿态的技术。 使用差分最小化技术将拐角模型与点集的轮廓相匹配,以识别表面的角姿势。 基于角姿势,创建表面的虚拟模型并将其与点集合相匹配,以确定曲面的姿态。

    Hand gesture detection
    10.
    发明授权
    Hand gesture detection 有权
    手势检测

    公开(公告)号:US08970479B1

    公开(公告)日:2015-03-03

    申请号:US13562734

    申请日:2012-07-31

    IPC分类号: G09G5/00 G06F3/01

    CPC分类号: G06F3/017 G06K9/00355

    摘要: Techniques are described for detecting a hand gesture made by a user. Fingertips of a hand may be identified and tracked over time. When a user contracts the fingertips from an extended position, hand spread may be calculated based on the area of the hand and fingers. The hand spread over time may be compared to a Gaussian function to evaluate whether the observed motion represents a grasping motion.

    摘要翻译: 描述了用于检测由用户做出的手势的技术。 一只手的指尖可能随时间被识别和跟踪。 当用户从伸展位置收缩指尖时,可以基于手和手指的面积来计算手伸。 随着时间推移的手可以与高斯函数进行比较,以评估观察到的运动是否表示抓握运动。