METHOD AND SYSTEM FOR OPTICAL USER RECOGNITION
    1.
    发明申请
    METHOD AND SYSTEM FOR OPTICAL USER RECOGNITION 有权
    光学用户识别的方法和系统

    公开(公告)号:US20160307382A1

    公开(公告)日:2016-10-20

    申请号:US14683243

    申请日:2015-04-10

    Applicant: Google Inc.

    CPC classification number: G07C9/00158 G06K9/00348 G07C3/00

    Abstract: A method and system for optically detecting a user. A sequence of patterns of radiation reflected from an object in a room may be captured by a device. The patterns of radiation may be infrared radiation emitted from the device. A sequence of variations between the captured sequence of patterns of radiation and the emitted sequence of patterns of radiation may be determined and object characteristics of an object may be determined based upon the sequence of variations. The object characteristics may be a sequence of dimensions of the object and a sequence of locations of the object. The method may determine the first is a user based upon the determined object characteristics and a room profile. The room profile may include a plurality of object characteristics of one or more objects in the room.

    Abstract translation: 一种用于光学检测用户的方法和系统。 从房间中的物体反射的辐射的一系列图案可以被设备捕获。 辐射的图案可以是从设备发射的红外辐射。 可以确定所捕获的辐射模式序列和发射的辐射模式序列之间的变化序列,并且可以基于变化的顺序来确定对象的对象特征。 对象特征可以是对象的维度序列和对象的位置序列。 该方法可以基于所确定的对象特征和房间简档来确定第一个是用户。 房间简档可以包括房间中的一个或多个物体的多个物体特征。

    Generating a Three-Dimensional Object Localization Lookup Table

    公开(公告)号:US20180288389A1

    公开(公告)日:2018-10-04

    申请号:US15476836

    申请日:2017-03-31

    Applicant: GOOGLE INC.

    Abstract: A process executes at an electronic system. The process identifies device characteristics of an imaging device. The imaging device has signal emitters and signal detectors. The process determines a modulation signal for controlling the signal emitters to illuminate a field of view. The process partitions the field of view into a 3-dimensional plurality of voxels. According to the modulation signal and the device characteristics, the process generates unit response signals. Each unit response signal is associated with one of the voxels, and each unit response signal represents reflection from the voxel when the voxel is filled and reflects illumination generated by one of the signal emitters according to the modulation signal. The process samples the unit response signals to form unit response vectors. Each unit response vector corresponds to one of the plurality of voxels. The process then combines the unit response vectors to form the lookup table.

    Using a scene illuminating infrared emitter array in a video monitoring camera for depth determination
    7.
    发明授权
    Using a scene illuminating infrared emitter array in a video monitoring camera for depth determination 有权
    在视频监控摄像机中使用场景照射红外发射器阵列进行深度确定

    公开(公告)号:US09454820B1

    公开(公告)日:2016-09-27

    申请号:US14738818

    申请日:2015-06-12

    Applicant: GOOGLE INC.

    Abstract: A process creates a depth map of a scene. The process is performed at a computing device having one or more processors, and memory storing one or more programs configured for execution by the one or more processors. For each of a plurality of distinct subsets of illuminators of a camera system, the process receives a captured image of a first scene taken by a 2-dimensional array of image sensors of the camera system while the respective subset of illuminators are emitting light and the illuminators not in the respective subset are not emitting light. The image sensors are partitioned into a plurality of pixels. For each pixel, the process uses the captured images to form a respective vector of light intensity at the pixel and estimates a depth in the first scene at the respective pixel by looking up the respective vector in a respective lookup table.

    Abstract translation: 过程创建场景的深度图。 该过程在具有一个或多个处理器的计算设备和在存储一个或多个被配置为由一个或多个处理器执行的程序的存储器中执行。 对于相机系统的多个不同的照明子集中的每一个,该过程接收由相机系统的图像传感器的二维阵列拍摄的第一场景的拍摄图像,同时照明器的各个子集发光,并且 不在相应子集中的照明器不发光。 图像传感器被分割成多个像素。 对于每个像素,该过程使用所捕获的图像在像素处形成相应的光强度矢量,并且通过查找相应查找表中的相应矢量来估计相应像素处的第一场景中的深度。

    Simulating an infrared emitter array in a video monitoring camera to construct a lookup table for depth determination
    8.
    发明授权
    Simulating an infrared emitter array in a video monitoring camera to construct a lookup table for depth determination 有权
    在视频监控摄像机中模拟一个红外发射器阵列,以构建一个用于深度确定的查找表

    公开(公告)号:US09235899B1

    公开(公告)日:2016-01-12

    申请号:US14738803

    申请日:2015-06-12

    Applicant: GOOGLE INC.

    Abstract: A process generates lookup tables for estimating spatial depth in a scene. The process identifies subsets of illuminators of a camera system that has a 2-dimensional array of image sensors and illuminators in fixed locations relative to the array, and partitions the image sensors into a plurality of pixels. For each pixel, and for each of m distinct depths from the respective pixel, the process simulates a virtual surface at the respective depth. For each of the subsets of illuminators, the process determines an expected light intensity at the pixel based on the respective depth. The process forms an intensity vector using the expected light intensities for each of the distinct subsets and normalizes the intensity vector. For each pixel, the process constructs a lookup table comprising the normalized vectors corresponding to the pixel. The lookup table associates each normalized vector with the depth of the corresponding simulated surface.

    Abstract translation: 过程产生用于估计场景中的空间深度的查找表。 该过程识别具有相对于阵列的固定位置中的图像传感器和照明器的二维阵列的相机系统的照明器的子集,并将图像传感器分割成多个像素。 对于每个像素,并且对于来自相应像素的m个不同深度的每一个,该过程在相应的深度处模拟虚拟表面。 对于照明器的每个子集,该过程基于相应的深度确定像素处的预期光强度。 该过程使用每个不同子集的预期光强度形成强度矢量并且对强度矢量进行归一化。 对于每个像素,该过程构造包括与像素对应的归一化矢量的查找表。 查找表将每个归一化向量与对应的模拟表面的深度相关联。

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