公开(公告)号：US20170262987A1

公开(公告)日：2017-09-14

申请号：US15065548

申请日：2016-03-09

Applicant: Xerox Corporation

Inventor： Nathan Gnanasambandam ,  Lalit K. Mestha

IPC: G06T7/00 ,  A61B5/021 ,  A61B5/00 ,  G06T7/40

CPC classification number: G06T7/0016 ,  A61B5/0077 ,  A61B5/02125 ,  A61B5/02416 ,  A61B5/6889 ,  A61B5/7282 ,  G06T2207/10016 ,  G06T2207/20032 ,  G06T2207/30104

Abstract: A method, non-transitory computer readable medium and apparatus for estimating a pulse transmit time (PTT) to calculate a blood pressure are disclosed. For example, the method includes receiving a series of video images over a period of time that includes a first location of an individual and a second location of the individual, calculating a first set of luminance values of the first location and a second set of luminance values of the second location, estimating the PTT based on an average time difference from consecutive peaks of the first set of luminance values and the second set of luminance values and transmitting the PTT to a blood pressure calculation device to calculate the blood pressure based on the PTT that is estimated.

公开(公告)号：US09253420B2

公开(公告)日：2016-02-02

申请号：US14178904

申请日：2014-02-12

Applicant: Xerox Corporation

Inventor： Peter J. Nystrom ,  Lalit K. Mestha ,  Edgar A. Bernal ,  Xuejin Wen ,  Peter Gulvin

IPC: H04N5/33 ,  G02B5/20 ,  H04N5/335

CPC classification number: H04N5/332 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0264 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/2846 ,  G02B5/204 ,  H04N5/335

Abstract: A method is provided for using a single-pixel imager in order to spatially reconstruct an image of a scene. The method can comprise the following: configuring a light filtering device including an array of imaging elements to a spatially varying optical filtering process of incoming light according to a series of spatial patterns corresponding to sampling functions. The light filtering device can be a transmissive filter including a first membrane, a second membrane, and a variable gap therebetween. The method further comprises tuning a controller for manipulating a variable dimension of the gap; and, measuring, using a photodetector of the single-pixel imager, a magnitude of an intensity of the filtered light across pixel locations in the series of spatial patterns. The magnitude of the intensity can be equivalent to an integral value of the scene across the pixel locations.

Abstract translation: 提供了一种用于使用单像素成像器以便空间重建场景的图像的方法。 该方法可以包括以下：根据与采样功能相对应的一系列空间模式，将包括成像元件阵列的光滤波装置配置到入射光的空间变化的光学滤波处理。 光过滤装置可以是包括第一膜，第二膜和它们之间的可变间隙的透射过滤器。 该方法还包括调整控制器以操纵间隙的可变尺寸; 以及使用所述单像素成像器的光电检测器测量所述一系列空间图案中的像素位置之间的经过滤光的强度的大小。 强度的大小可以等于像素位置上的场景的积分值。

公开(公告)号：US20150301590A1

公开(公告)日：2015-10-22

申请号：US14257393

申请日：2014-04-21

Applicant: Xerox Corporation

Inventor： Michael R. Furst ,  Edgar A. Bernal ,  Robert P. Loce ,  Lalit K. Mestha

IPC: G06F3/01 ,  A61B5/00 ,  G06T7/20 ,  G06F3/00 ,  G06T7/00 ,  A61B5/087 ,  A61B5/08

CPC classification number: G06F3/011 ,  A61B5/0077 ,  A61B5/08 ,  A61B5/0816 ,  A61B5/087 ,  A61B5/1135 ,  A61B5/7485 ,  A61B2560/0223 ,  A61B2576/00 ,  G06F3/005 ,  G06F3/012

Abstract: A method for computing output using a non-contact (invisible) input signal includes acquiring depth data of a scene captured by a depth-capable sensor. The method includes generating a temporal series of depth maps corresponding to the depth data. The method includes generating at least one volumetric attribute from the depth data. The method includes generating an output based on the volumetric attribute to control actions.

Abstract translation: 使用非接触（不可见）输入信号计算输出的方法包括获取由深度能力的传感器捕获的场景的深度数据。 该方法包括生成对应于深度数据的时间序列深度图。 该方法包括从深度数据生成至少一个体积属性。 该方法包括基于体积属性生成输出以控制动作。