Expectation maximization to determine position of ambient glints
    41.
    发明授权
    Expectation maximization to determine position of ambient glints 有权
    期望最大化以确定环境闪光的位置

    公开(公告)号:US09268024B1

    公开(公告)日:2016-02-23

    申请号:US13632098

    申请日:2012-09-30

    Applicant: Google Inc.

    Abstract: Exemplary embodiments may involve analyzing reflections from an eye to help determine where the respective sources of the reflections are located. An exemplary method may involve: (a) analyzing eye-image data to determine observed movement of a reflected feature on a corneal surface; (b) determining an expected movement of the reflected feature on the corneal surface given a value of a z-distance parameter, wherein the value of the z-distance parameter is initially set at a first value; (c) determining a difference between the observed movement of the reflected feature on the corneal surface and the expected movement of the reflected feature on the corneal surface; (d) if the difference is less than a threshold, then associating the value of the z-distance parameter with a source of the reflected feature; and (e) if the difference is greater than the threshold, then: (i) making a predetermined adjustment to the value of the z-distance parameter; and (ii) repeating (a) to (d) with the adjusted value of the z-distance parameter.

    Abstract translation: 示例性实施例可以包括分析来自眼睛的反射,以帮助确定各个反射源位于何处。 示例性方法可以包括:(a)分析眼图数据以确定角膜表面上的反射特征的观察到的移动; (b)在给定z距离参数的值的情况下确定角膜表面上的反射特征的预期移动,其中z-距离参数的值被初始设置为第一值; (c)确定观察到的角膜表面上的反射特征的运动与角膜表面上的反射特征的预期运动之间的差异; (d)如果差值小于阈值,则将z距离参数的值与反射特征的源相关联; 和(e)如果差值大于阈值,则:(i)对z-距离参数的值进行预定的调整; 和(ii)用z距离参数的调整值重复(a)至(d)。

    Wearable computing device with gesture recognition
    42.
    发明授权
    Wearable computing device with gesture recognition 有权
    具有手势识别功能的可穿戴计算设备

    公开(公告)号:US09164588B1

    公开(公告)日:2015-10-20

    申请号:US13760048

    申请日:2013-02-05

    Applicant: Google Inc.

    Abstract: Methods, apparatus, and computer-readable media are described herein related to recognizing a look up gesture. Level-indication data from at least an accelerometer associated with a wearable computing device (WCD) can be received. The WCD can be worn by a wearer. The WCD can determine whether a head of the wearer is level based on the level-indication data. In response to determining that the head of the wearer is level, the WCD can receive lookup-indication data from at least the accelerometer. The WCD can determine whether the head of the wearer is tilted up based on the lookup-indication data. In response to determining that the head of the wearer is tilted up, the WCD can generate a gesture-recognition trigger, where the gesture-recognition trigger indicates that the head of the wearer has moved up from level.

    Abstract translation: 本文描述了方法,装置和计算机可读介质,涉及识别查找手势。 可以接收来自至少与可穿戴计算设备(WCD)相关联的加速度计的水平指示数据。 WCD可佩戴者佩戴。 WCD可以基于水平指示数据来确定佩戴者的头部是否水平。 响应于确定佩戴者的头部水平,WCD可以从至少加速度计接收查找指示数据。 WCD可以基于查找指示数据确定佩戴者的头部是否向上倾斜。 响应于确定佩戴者的头部向上倾斜,WCD可以产生手势识别触发器,其中手势识别触发器指示佩戴者的头部从水平面向上移动。

    Multiple graphical keyboards for continuous gesture input
    44.
    发明授权
    Multiple graphical keyboards for continuous gesture input 有权
    用于连续手势输入的多个图形键盘

    公开(公告)号:US08997013B2

    公开(公告)日:2015-03-31

    申请号:US13907602

    申请日:2013-05-31

    Applicant: Google Inc.

    CPC classification number: G06F3/0481 G06F3/04886

    Abstract: In one example, a method includes outputting, by a computing device and for display, a graphical user interface comprising a first graphical keyboard comprising a first plurality of keys. The method further includes determining, based at least in part on an input context, to output a second graphical keyboard comprising a second plurality of keys, and outputting, for contemporaneous display with the first graphical keyboard, the second graphical keyboard. A character associated with at least one key from the second plurality of keys may be different than each character associated with each key from the first plurality of keys. The method further includes selecting, based at least in part on a first portion of a continuous gesture, a first key from first graphical keyboard, and selecting, based at least in part on a second portion of the continuous gesture, a second key from the second graphical keyboard.

    Abstract translation: 在一个示例中,一种方法包括由计算设备输出并显示包括包括第一多个密钥的第一图形键盘的图形用户界面。 该方法还包括至少部分地基于输入上下文来确定输出包括第二多个键的第二图形键盘,并输出与第一图形键盘同时显示第二图形键盘。 与来自第二多个键的至少一个键相关联的字符可以不同于与第一多个键中的每个键相关联的每个字符。 该方法还包括至少部分地基于连续手势的第一部分来选择来自第一图形键盘的第一键,并且至少部分地基于连续手势的第二部分来选择来自第一键的第二键 第二个图形键盘。

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