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526 条记录 (耗时 0.037 秒)

    Determination of a position code
    96.
    发明授权
    Determination of a position code 有权
    确定位置代码

    公开(公告)号：US06548768B1

    公开(公告)日：2003-04-15

    申请号：US09676892

    申请日：2000-10-02

    申请人： Mats Petter Pettersson ,  Tomas Edso

    发明人： Mats Petter Pettersson ,  Tomas Edso

    IPC分类号： G06K1106

    CPC分类号： G06K7/14 ,  G06F3/0321 ,  G06F3/03545 ,  G06K7/10722 ,  G06K7/1417 ,  G06K7/1443 ,  G06K7/1456 ,  G06K9/22 ,  G06K19/06018 ,  G06K19/06037 ,  G06K2009/226

    摘要： A method and a device for determining a virtual raster of a code pattern consisting of a plurality of marks with associated coordinates mn. Each mark is located at a nominal position but displaced from the nominal position in one of a plurality of directions, depending upon the value of the mark. The nominal positions form raster points gn of the virtual raster, and the raster points are situated on raster lines, which intersect at a first angle. In addition there is a device for determining an initial vector V1,2 on the basis of the coordinates m1, m2 of one or more marks, which initial vector extends approximately between a first and a second adjacent raster point g1, g2. A calculation device determines a second vector V2,3, which forms said angle with the first vector and is the same length as the first vector and extends from the second raster point g2 approximately to a third raster point g3. The mark coordinate m3 which is associated with the third raster point g3 is determined. Subsequently the actual coordinates are calculated for the third raster point on the basis of the third mark's coordinates and its value. The actual coordinates for the third raster point are stored, after which the procedure is repeated taking the second vector as the starting point.

    摘要翻译： 一种用于确定由具有相关联的坐标mn的多个标记组成的代码图案的虚拟光栅的方法和装置。 取决于标记的值，每个标记位于标称位置，但是从多个方向中的一个方向上的标称位置移位。 标称位置形成虚拟光栅的光栅点gn，光栅点位于与第一角度相交的光栅线上。 此外，存在用于基于一个或多个标记的坐标m1，m2确定初始矢量V1,2的装置，该初始矢量大致在第一和第二相邻光栅点g1，g2之间延伸。 计算装置确定第二矢量V2,3，其与第一矢量形成所述角度并且与第一矢量具有相同的长度，并且从第二光栅点g2大致延伸到第三光栅点g3。 确定与第三光栅点g3相关联的标记坐标m3。 随后，基于第三标记的坐标及其值来计算第三光栅点的实际坐标。 存储第三光栅点的实际坐标，之后以第二个矢量为起点重复该过程。

    Processing of digital images
    97.
    发明申请
    Processing of digital images 有权
    数字图像处理

    公开(公告)号：US20030053699A1

    公开(公告)日：2003-03-20

    申请号：US10179967

    申请日：2002-06-26

    发明人： Andreas Olsson

    IPC分类号： G06K009/62

    CPC分类号： G06K9/38 ,  G06K2009/226 ,  G06T7/194 ,  G06T7/73 ,  G06T2207/10048

    摘要： In a method for identifying individual objects in a digital image (I), a device is used that comprises a thresholding unit (20) and a threshold calculation unit (21). The threshold calculation unit (21) is designed to divide a reference image which corresponds to the digital image (I) into a plurality of subareas, to calculate at least one threshold value (Ti) for each subarea on the basis of the contrast in the associated subarea and to create a threshold matrix (T) from these threshold values (Ti). The thresholding unit (20) is designed to receive the digital image (I) and to compare the luminance values of the digital image with the threshold values (Ti) of the threshold matrix (T), in order to create a binary image on the basis of the comparison. The device and the method permit quick and memory-efficient identification of the individual objects, even if the digital image (I) contains variations in luminance and/or sharpness. A computer program product, a hardware circuit and a hand-held apparatus for position determination are also described.

    摘要翻译： 在用于识别数字图像（I）中的各个对象的方法中，使用包括阈值单元（20）和阈值计算单元（21）的设备。 阈值计算单元（21）被设计为将与数字图像（I）相对应的参考图像分割成多个子区域，以基于所述子区域中的对比度来计算每个子区域的至少一个阈值（Ti） 并且从这些阈值（Ti）创建阈值矩阵（T）。 阈值单元（20）被设计为接收数字图像（I）并将数字图像的亮度值与阈值矩阵（T）的阈值（Ti）进行比较，以便在 比较的基础。 即使数字图像（I）包含亮度和/或锐度的变化，该装置和方法允许对各个对象进行快速和高记忆效率的识别。 还描述了用于位置确定的计算机程序产品，硬件电路和手持式设备。

    Reading pen
    98.
    发明申请
    Reading pen 有权
    阅读笔

    公开(公告)号：US20030029919A1

    公开(公告)日：2003-02-13

    申请号：US10179966

    申请日：2002-06-26

    发明人： Stefan Lynggaard ,  Mats Petter Pattersson

    IPC分类号： G06K007/10

    CPC分类号： G06K9/22 ,  G06F3/0321 ,  G06K2009/226

    摘要： A device, a method and a memory medium on which is stored a computer program for position determination are provided. The device (1) has a sensor (6) for recording an image of a position code (18) on a surface (4, 17), processing means (10) for determining a position on the surface based on the recorded image and at least a first writing means (11) for writing on the surface. The device is arranged to write on the surface by means of the first writing means, depending upon whether the position has been determined or not.

    摘要翻译： 提供了存储有用于位置确定的计算机程序的设备，方法和存储介质。 装置（1）具有用于在表面（4,17）上记录位置代码（18）的图像的传感器（6），用于基于记录图像确定表面上的位置的处理装置（10） 至少一个用于在表面上书写的第一写入装置（11）。 该装置被布置成借助于第一写入装置在表面上写入，这取决于位置是否已被确定。

    Identification of virtual raster pattern
    99.
    发明申请
    Identification of virtual raster pattern 有权
    识别虚拟光栅图案

    公开(公告)号：US20020044138A1

    公开(公告)日：2002-04-18

    申请号：US09812907

    申请日：2001-03-21

    发明人： Tomas Edso ,  Petter Ericson

    IPC分类号： G09G005/00

    CPC分类号： G06F3/03545 ,  G06F3/0321 ,  G06K7/14 ,  G06K9/22 ,  G06K19/06037 ,  G06K2009/226

    摘要： A method aims to identify a virtual raster pattern in an image of a surface that is provided with a plurality of position-coding marks. Each mark is associated with a respective intersection of raster lines belonging to the raster pattern. By means of the method, the virtual raster pattern is identified via Fourier analysis of the image. A computer program product and a device for position determination are also described.

    摘要翻译： 一种方法旨在识别具有多个位置编码标记的表面的图像中的虚拟光栅图案。 每个标记与属于光栅图案的光栅线的相应交点相关联。 通过该方法，通过图像的傅立叶分析来识别虚拟光栅图案。 还描述了计算机程序产品和用于位置确定的装置。

    Written command
    100.
    发明申请
    Written command 有权
    书面命令

    公开(公告)号：US20010024193A1

    公开(公告)日：2001-09-27

    申请号：US09746782

    申请日：2000-12-22

    发明人： Christer Fahraeus

    IPC分类号： G09G005/00

    CPC分类号： G06F3/03545 ,  G06F3/0321 ,  G06K9/22 ,  G06K2009/226

    摘要： A handheld electronic device which is adapted to carry out at least one operation. The device is controllable by a user using the device as a pen and writing a command for initiating said operation, such as nulldial the following telephone numbernull. A method for initiating the operation in an electronic device and software used for implementing the method.

    摘要翻译： 一种适于执行至少一个操作的手持式电子设备。 该设备由用户使用该设备作为笔可控并且写入用于发起所述操作的命令，例如“拨打以下电话号码”。 一种用于在电子设备中启动操作的方法和用于实现该方法的软件。