知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.014 秒)

    Enhanced input using flashing electromagnetic radiation
    1.
    发明授权
    Enhanced input using flashing electromagnetic radiation 有权
    使用闪电电磁辐射增强输入

    公开(公告)号：US08818040B2

    公开(公告)日：2014-08-26

    申请号：US13887191

    申请日：2013-05-03

    申请人： QUALCOMM Incorporated

    发明人： Atid Shamaie ,  Francis MacDougall

    IPC分类号： G06K9/00 ,  H04N7/18

    CPC分类号： G06F3/042 ,  G06F3/017 ,  G06F3/0425 ,  G06K9/00355 ,  G06K9/2036

    摘要： Enhanced input using flashing electromagnetic radiation, in which first and second images of an object are accessed. The first image being captured while the object is illuminated with projected electromagnetic radiation, and the second image being captured while the projected electromagnetic radiation is extinguished. A position of the object relative to the screen based on comparing the first and second images is determined. An application is controlled based on the determined position.

    摘要翻译： 使用闪光电磁辐射的增强输入，其中访问对象的第一和第二图像。 在被投射的电磁辐射照射物体时捕获的第一图像，并且在投射的电磁辐射熄灭时捕获第二图像。 确定基于比较第一和第二图像的对象相对于屏幕的位置。 基于确定的位置控制应用程序。

    Vision-based interactive projection system
    3.
    发明授权
    Vision-based interactive projection system 有权

    公开(公告)号：US09626042B2

    公开(公告)日：2017-04-18

    申请号：US14686630

    申请日：2015-04-14

    申请人： QUALCOMM Incorporated

    发明人： Atid Shamaie

    IPC分类号： G06F3/042 ,  G03B21/14 ,  G06K9/00 ,  G03B17/54

    CPC分类号： G06F3/0425 ,  G03B17/54 ,  G03B21/14 ,  G06F2203/04101 ,  G06K9/00375

    摘要： Techniques are provided to improve interaction between a user and a projection system. In some embodiments, an image of a user in front of a display screen is captured. An inference can then be made as to whether a user is touching a display screen based on an analysis of shadows and/or variation of brightness (i.e., intensities) across pixels in the image. For example, it may be inferred that the object is: (1) approaching the screen when a region surrounding a top of the object is characterized by a relatively small brightness variation; (2) hovering near the screen when the brightness variation is large and the region includes a dark extremum (caused by a shadow); and (3) touching the screen when the brightness variation is large and the region includes a light extremum.

    Vision-based interactive projection system
    4.
    发明授权
    Vision-based interactive projection system 有权
    基于视觉的互动投影系统

    公开(公告)号：US09030445B2

    公开(公告)日：2015-05-12

    申请号：US13645390

    申请日：2012-10-04

    申请人： QUALCOMM Incorporated

    发明人： Atid Shamaie

    IPC分类号： G06F3/042 ,  G03B21/14 ,  G06K9/00

    CPC分类号： G06F3/0425 ,  G03B17/54 ,  G03B21/14 ,  G06F2203/04101 ,  G06K9/00375

    摘要： Techniques are provided to improve interaction between a user and a projection system. In some embodiments, an image of a user in front of a display screen is captured. An inference can then be made as to whether a user is touching a display screen based on an analysis of shadows and/or variation of brightness (i.e., intensities) across pixels in the image. For example, it may be inferred that the object is: (1) approaching the screen when a region surrounding a top of the object is characterized by a relatively small brightness variation; (2) hovering near the screen when the brightness variation is large and the region includes a dark extremum (caused by a shadow); and (3) touching the screen when the brightness variation is large and the region includes a light extremum.

    摘要翻译： 提供了用于改善用户和投影系统之间的交互的技术。 在一些实施例中，捕获在显示屏前面的用户的图像。 然后，可以基于图像中的像素的阴影和/或亮度变化（即，强度）来分析用户是否触摸显示屏幕的推论。 例如，可以推断出物体是：（1）当围绕物体的顶部的区域的特征在于相对较小的亮度变化时，接近屏幕; （2）当亮度变化较大并且该区域包括黑暗极值（由阴影引起）时，在屏幕附近盘旋; 和（3）当亮度变化较大并且该区域包括光极值时触摸屏幕。