Remote heart rate monitoring based on imaging for moving subjects

    公开(公告)号:US10660533B2

    公开(公告)日:2020-05-26

    申请号:US14501490

    申请日:2014-09-30

    申请人: Rapsodo Pte. Ltd.

    摘要: Systems and methods are disclosed to measure a PPG signal. In some embodiments, a method may include capturing a plurality of frames of a subject; tracking the position of a region of interest of the subject in each of the plurality of frames; creating a first time series signal, a second time series signal, and third time series signal corresponding with respective color channels of the plurality of frames; normalizing the first, second, and third time series signals, combining the normalized first time series signal, the normalized first time series signal, and the normalized first time series signal into a combined signal; creating a spectral signal from the combined signal; and extracting the PPG signal from the spectral signal.

    OBJECT SURFACE MATCHING WITH A TEMPLATE FOR FLIGHT PARAMETER MEASUREMENT

    公开(公告)号:US20170200277A1

    公开(公告)日:2017-07-13

    申请号:US15179463

    申请日:2016-06-10

    申请人: Rapsodo Pte. Ltd.

    摘要: A method of object surface matching includes identifying an object in-flight in an image; identifying a feature on the object that is in a first spatial position; comparing the feature with set of template images; identifying a first template image in the set of template images that matches the feature on the object that is in the first spatial position; determining first coordinates for the first spatial position based on the first template image; identifying a second image of the object that includes the feature on the object that is in a second spatial position; identifying a second template image in the set of template images that matches the feature on the object that is in the second spatial position; determining second coordinates for the second spatial position based on the second template image; and generating a spin value for the object based on the first and second coordinates.

    IMAGE PROCESSING FOR LAUNCH PARAMETERS MEASUREMENT OF OBJECTS IN FLIGHT
    15.
    发明申请
    IMAGE PROCESSING FOR LAUNCH PARAMETERS MEASUREMENT OF OBJECTS IN FLIGHT 有权
    用于发射参数的图像处理测量飞行中的物体

    公开(公告)号:US20150262011A1

    公开(公告)日:2015-09-17

    申请号:US14032949

    申请日:2013-09-20

    申请人: Rapsodo Pte. Ltd.

    摘要: An example embodiment includes a method of measuring launch parameters of an object in flight. The method includes capturing images of an object in flight. A radius of the object and a center of the object are identified in each of the images. A velocity, an elevation angle, and an azimuth angle are calculated based on the radius of the object, the center of the object, and pre-measured camera alignment values. The method further includes cropping the images to a smallest square that bounds the object and flattening the images from spherical representations to Cartesian representations. The method also includes converting the Cartesian representations to polar coordinates with a range of candidate centers of rotations. Based on a fit of the polar image pair, the spin axis and spin rate are measured.

    摘要翻译: 示例性实施例包括测量飞行中物体的启动参数的方法。 该方法包括捕获飞行中物体的图像。 在每个图像中识别对象的半径和对象的中心。 基于物体的半径,物体的中心和预先测量的相机对准值计算速度,仰角和方位角。 该方法还包括将图像裁剪到限定对象的最小正方形,并将图像从球面表示法平坦化到笛卡尔表示。 该方法还包括将笛卡尔表示转换为具有候选旋转中心的范围的极坐标。 基于极坐标图像对的拟合,测量自旋轴和旋转速率。

    KINEMATIC ANALYSIS OF USER FORM
    16.
    发明公开

    公开(公告)号:US20240082683A1

    公开(公告)日:2024-03-14

    申请号:US18511603

    申请日:2023-11-16

    申请人: RAPSODO PTE. LTD.

    IPC分类号: A63B71/06 A63B24/00 G09B19/00

    摘要: A method includes receiving motion data of a user in an environment with respect to a plurality of instances of a first action by the user, determining a kinematic movement based on receiving the motion data, analyzing the kinematic movement using a neural network, obtaining a plurality of outcome types with respect to the first action of the user, correlating the kinematic movement with the at least one indication of the outcome type with respect to the first action, classifying an outcome of the first action as at least one of the plurality of outcome types, determining which of the kinematic movements of the user result in the at least one of the plurality of outcome types, and providing instructions to the user to alter the determined kinematic movements of the user that result in the at least one of the plurality of outcome types.

    Measurement and reconstruction of the golf launching scene in 3D

    公开(公告)号:US11583746B2

    公开(公告)日:2023-02-21

    申请号:US17346096

    申请日:2021-06-11

    申请人: RAPSODO PTE. LTD.

    摘要: A method, including scanning a golf club to obtain scanning information; inputting the scanning information into a processing system; using at least one camera positioned behind and in-line to a golf swing direction and at least one lighting unit to obtain a series of images of a golf club during the golf swing; converting the series of images into parameterized motion representations; using at least one radar to obtain a radar signal; inputting the parameterized motion representations and the radar signal into the processing system; receiving golf club parameters and golf swing parameters as an output of the processing system; and generating a visual model of the golf club and the golf swing in a virtual space using the golf club parameters and the golf swing parameters.