Apparatus and method for tracking handwriting from visual input
    101.
    发明授权
    Apparatus and method for tracking handwriting from visual input 失效
    用于从视觉输入跟踪手写的装置和方法

    公开(公告)号:US6044165A

    公开(公告)日:2000-03-28

    申请号:US490678

    申请日:1995-06-15

    IPC分类号: G06K9/22 G06K9/00

    CPC分类号: G06K9/224 G06K9/222

    摘要: A system for detecting movement of a writing implement relative to a writing surface to determine the path of the writing implement. The writing implement tip is determined within the image and used to form a kernel. The determination is made either manually, by looking for a predetermined pen tip shape, or by looking for a position of maximum motion in the image. That kernel is tracked from frame to frame to define the path of the writing implement. The tracking is accomplished by correlating the kernel to the image: either to the whole image, to a portion of the image near the last position of the kernel, or to a portion of the image predicted by a prediction filter.

    摘要翻译: 一种用于检测书写工具相对于书写表面的移动以确定书写工具的路径的系统。 写入工具提示在图像内确定并用于形成内核。 通过寻找预定的笔尖形状或通过寻找图像中的最大运动的位置来手动进行确定。 该内核从帧到帧跟踪以定义写入工具的路径。 跟踪是通过将内核与图像相关联的:将整个图像与内核的最后位置附近的图像的一部分相关联,或者通过预测滤波器预测的图像的一部分来实现。

    Touch sensitive input control device
    102.
    发明授权
    Touch sensitive input control device 失效
    触摸感应输入控制装置

    公开(公告)号:US5805137A

    公开(公告)日:1998-09-08

    申请号:US238428

    申请日:1994-05-05

    申请人: Taizo Yasutake

    发明人: Taizo Yasutake

    摘要: A family of controllers incorporate multiple force/touch sensitive input elements to provide intuitive input in up to six degrees of freedom, including position and rotation, in either a Cartesian, cylindrical or spherical coordinate system. Six dimensions of input can be generated without requiring movement of the controller, which provides a controller suitable for controlling cursors and display objects in an interactive computer system and for equipment such as heavy cranes and fork lift trucks. Positional information is obtained either by use of a "pushing" or "dragging" metaphor. Rotational information is provided by either a "pushing," "twisting," or "gesture" metaphor. In certain embodiments, the same sensor is used for both positional and rotational inputs, and the two are differentiated by the magnitude of the force applied to the sensor.

    摘要翻译: 一系列控制器包含多个力/触摸敏感输入元件,以直角输入提供直角输入,包括直角,圆柱或球面坐标系中的六个自由度,包括位置和旋转。 可以产生输入的六个维度,而不需要控制器的移动,其提供适合于控制交互式计算机系统中的光标和显示对象的控制器以及诸如重型起重机和叉车的设备。 通过使用“推”或“拖”的比喻获得位置信息。 旋转信息由“推”,“扭”或“手势”隐喻提供。 在某些实施例中,相同的传感器用于位置和旋转输入,并且两者被施加到传感器的力的大小区分。

    Touch sensitive input control device
    103.
    发明授权
    Touch sensitive input control device 失效
    触摸感应输入控制装置

    公开(公告)号:US5729249A

    公开(公告)日:1998-03-17

    申请号:US509797

    申请日:1995-08-01

    申请人: Taizo Yasutake

    发明人: Taizo Yasutake

    摘要: A family of controllers incorporate multiple force/touch sensitive input elements to provide intuitive input in up to six degrees of freedom, including position and rotation, in either a Cartesian, cylindrical or spherical coordinate system. Six dimensions of input can be generated without requiring movement of the controller, which provides a controller suitable for controlling cursors and display objects in an interactive computer system and for equipment such as heavy cranes and fork lift trucks. Position information is obtained either by use of a "pushing" or "dragging" metaphor. Rotational information is provided by either a "pushing," "twisting," or "gesture" metaphor. In certain embodiments, the same sensor is used for both position and rotational inputs, and the two are differentiated by the magnitude of the force applied to the sensor.

    摘要翻译: 一系列控制器包含多个力/触摸敏感输入元件,以直角输入提供直角输入,包括直角,圆柱或球面坐标系中的六个自由度,包括位置和旋转。 可以产生输入的六个维度,而不需要控制器的移动,其提供适合于控制交互式计算机系统中的光标和显示对象的控制器以及诸如重型起重机和叉车的设备。 位置信息是通过使用“推”或“拖”的比喻获得的。 旋转信息由“推”,“扭”或“手势”隐喻提供。 在某些实施例中,相同的传感器用于位置和旋转输入,并且两者被施加到传感器的力的大小区分。

    Method and apparatus for electromagnetic non-contact position
measurement with respect to one or more axes
    104.
    发明授权
    Method and apparatus for electromagnetic non-contact position measurement with respect to one or more axes 失效
    用于相对于一个或多个轴进行电磁非接触位置测量的方法和装置

    公开(公告)号:US5247261A

    公开(公告)日:1993-09-21

    申请号:US773848

    申请日:1991-10-09

    摘要: A preferred embodiment of the invention is an apparatus for measuring the position of a point with respect to at least one axis. The apparatus includes a reference electrode located at the reference point and at least one axial electrode fixed along the at least one axis. The axial electrode has a signal transmission property, such as resistivity, as measured between a first end and a point along the axis, which signal transmission property varies with the location of the point of measurement. The axial electrode is coupled to the reference electrode, typically capacitively. The apparatus also includes means for applying an electric signal to the reference electrode; means for measuring an output electric signal at the first end of the at least one axial electrode; and means for evaluating the relation between the output electric signal and the input electric signal to determine the position of the reference point relative to the axis. The invention also includes method of using the apparatus to determine the location of the reference point to the axis. The invention includes embodiments of one and more axes.

    摘要翻译: 本发明的优选实施例是一种用于测量点相对于至少一个轴的位置的装置。 该装置包括位于参考点处的参考电极和沿着至少一个轴线固定的至少一个轴向电极。 轴向电极具有在沿着轴线的第一端和点之间测量的诸如电阻率的信号传输性质,该信号传输特性随着测量点的位置而变化。 轴向电极通常电容地耦合到参考电极。 该装置还包括用于向参考电极施加电信号的装置; 用于测量所述至少一个轴向电极的第一端处的输出电信号的装置; 以及用于评估输出电信号和输入电信号之间的关系以确定参考点相对于轴的位置的装置。 本发明还包括使用该装置来确定参考点到轴的位置的方法。 本发明包括一个或多个轴的实施例。

    Position determining apparatus
    105.
    发明授权
    Position determining apparatus 失效
    位置确定装置

    公开(公告)号:US4885433A

    公开(公告)日:1989-12-05

    申请号:US292947

    申请日:1989-01-03

    申请人: J. A. Schier

    发明人: J. A. Schier

    IPC分类号: G06F3/038

    摘要: An apparatus for precisely locating the position of a transmitter within either a plane or within a three dimensional space. More particularly the apparatus of the invention is adapted for use with a computer and includes a pen-sized movable transmitter, or mouse, whose exact position within a plane or three dimensional space can be determined without the use of any physical connection between the transmitter and the rest of the apparatus.

    摘要翻译: 一种用于将发射器的位置精确地定位在平面内或在三维空间内的装置。 更具体地说,本发明的装置适于与计算机一起使用,并且包括笔尺寸的可移动发射器或鼠标,其可以在平面或三维空间内的精确位置被确定,而不需要使用发射机与 其余的装置。

    CURATED PHOTOGRAMMETRY
    107.
    发明申请

    公开(公告)号:US20180112978A1

    公开(公告)日:2018-04-26

    申请号:US15621944

    申请日:2017-06-13

    发明人: NICK BURTON VU NGUYEN

    IPC分类号: G01C11/02 G06K9/22 G06F17/30

    摘要: Approaches to generating photogrammetry data are provided. In some implementations, a capture device captures a sequence of images of a physical environment while device poses of the capture device are tracked as the capture device moves around the physical environment. For each of image of images in the sequence of images, a corresponding device pose is stored as metadata of the image. Using photogrammetry, a three-dimensional (3D) model of the physical environment is generated from the images, where the photogrammetry uses for each image of the images, the corresponding device pose from the metadata of the image to generate the 3D model. In further respects, a user feedback loop can be used to direct a user to move the capture device to particular device poses for the capture of the images. Further camera properties used to capture an image may be stored in its metadata and used by the photogrammetry.

    Method for the electronic authenticating of a handwritten signature, corresponding module and computer program
    109.
    发明授权
    Method for the electronic authenticating of a handwritten signature, corresponding module and computer program 有权
    手写签名的电子认证方法,相应的模块和计算机程序

    公开(公告)号:US09529971B2

    公开(公告)日:2016-12-27

    申请号:US13348222

    申请日:2012-01-11

    摘要: A method and apparatus are provided for electronically authenticating a handwritten signature of a user, entered on a writing surface via a writing instrument. The method includes acquiring, by the writing surface, at least one instant during the entering of the signature, of at least one piece of data representing the altitude z of the writing instrument relative to the writing surface, in an area of proximity to the writing surface; and authenticating the entered handwritten signature by taking account of at least the altitude z.

    摘要翻译: 提供一种用于电子地认证通过书写工具输入到书写表面上的用户的手写签名的方法和装置。 该方法包括在写入表面中至少一个瞬间在写入附近的区域中获取表示书写工具相对于书写表面的高度z的至少一条数据 表面; 并通过考虑至少高度z来认证输入的手写签名。