Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified
    1.
    发明申请
    Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified 有权
    用于检测代表图像的数字数据流中的直线段的处理和设备,其中识别出所述图像的轮廓点

    公开(公告)号:US20060147118A1

    公开(公告)日:2006-07-06

    申请号:US11364049

    申请日:2006-02-28

    IPC分类号: G06K9/46

    摘要: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation θ of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i−l, j−l), Pb(i, j−l), Pd(i−l, j) directly neighbouring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighbouring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close. Moreover, when the result of a comparison is validated the coordinates of the point of the connection having inferior coordinates are copied over to those of the point having superior coordinates, it is verified whether solely the point Pa(i−l, j−l) is a contour point amongst the four points Pa, Pb, Pc, Pd extracted, and in the affirmative case the coordinates of the origin point and of the final point and the orientation of the straight-line segment, if its size is greater than a predetermined threshold, are saved.

    摘要翻译: 一种用于检测代表图像(m,n)的数字数据流中的直线段的过程,其中所述图像的轮廓点各自由它们的梯度的模量和取向θ相对于 水平轴被识别。 数字数据流以两条连续线的形式存储,对于每条线,n个点P(i,j)中的每一个,所述线的n个点被连续提取,并且对于每个点Pc(i,j) )提取所谓的当前点,提取与所述当前点直接相邻的具有较差坐标Pa(il,jl),Pb(i,j1),Pd(il,j)的三个点, 将当前点Pc与相邻点Pa,Pb和Pd的点进行比较。 比较点Pb和Pd的取向的值,如果点是轮廓点,并且其取向的值接近,则比较的结果被验证。 此外,当比较的结果被验证时,具有较差坐标的连接点的坐标被复制到具有优越坐标的点的坐标,仅验证点Pa(il,jl)是否是轮廓点 在提取的四个点Pa,Pb,Pc,Pd中的四个点中,并且在肯定的情况下,如果其大小大于预定阈值,则原点和最终点的坐标以及直线段的取向是 保存

    Opto-electronic device for acquisition of images of codes in one and two dimensions
    2.
    发明授权
    Opto-electronic device for acquisition of images of codes in one and two dimensions 有权
    用于在一维和二维中获取代码图像的光电设备

    公开(公告)号:US06328214B1

    公开(公告)日:2001-12-11

    申请号:US09490706

    申请日:2000-01-24

    IPC分类号: G06K710

    CPC分类号: G06K7/10722

    摘要: The invention concerns an oplo-electronic device for acquisition of images of codes in one and two dimensions, comprising an electronic sensor constituted by a high-resolution photosensitive matrix, an analog/digital converter to convert the data emitted from the electronic sensor, and an image acquisition and processing module, comprising a preprocessing module and two processing modules, forming a pipe-line type architecture. The preprocessing module, acts in synchronous mode on the flow of digital data and implements simple image-processing operations. A number of cabled processing units can form the preprocessing modules. The processing modules, are constituted by programmable modules acting in asynchronous mode on the data emitted from the preceding module and stored in alternative manner in two memory blocks. The programmable modules are programmed to perform processing operations culminating in the obtaining of normalized data that are representative of the information “coded” in the captured code.

    摘要翻译: 本发明涉及一种用于获取一维和二维代码图像的oplo电子设备,其包括由高分辨率光敏矩阵构成的电子传感器,用于转换从电子传感器发射的数据的模拟/数字转换器,以及 图像采集和处理模块,包括一个预处理模块和两个处理模块,形成管线式结构。 预处理模块在数字数据流中以同步模式运行,并实现简单的图像处理操作。 许多电缆处理单元可以形成预处理模块。 处理模块由以异步模式对从前一个模块发射的数据执行并以另一种方式存储在两个存储块中的可编程模块构成。 可编程模块被编程为执行处理操作,最终获得表示捕获代码中的“编码”信息的归一化数据。

    Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified
    3.
    发明授权
    Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified 有权
    用于检测代表图像的数字数据流中的直线段的处理和设备,其中识别出所述图像的轮廓点

    公开(公告)号:US07412097B2

    公开(公告)日:2008-08-12

    申请号:US11364049

    申请日:2006-02-28

    摘要: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation θ of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i−l, j−l), Pb(i, j−l), Pd(i−l, j) directly neighbouring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighbouring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close. Moreover, when the result of a comparison is validated the coordinates of the point of the connection having inferior coordinates are copied over to those of the point having superior coordinates, it is verified whether solely the point Pa(i−l, j−l) is a contour point amongst the four points Pa, Pb, Pc, Pd extracted, and in the affirmative case the coordinates of the origin point and of the final point and the orientation of the straight-line segment, if its size is greater than a predetermined threshold, are saved.

    摘要翻译: 一种用于检测代表图像(m,n)的数字数据流中的直线段的过程,其中所述图像的轮廓点各自由它们的梯度的模量和取向θ相对于 水平轴被识别。 数字数据流以两条连续线的形式存储,对于每条线,n个点P(i,j)中的每一个,所述线的n个点被连续提取,并且对于每个点Pc(i,j) )提取所谓的当前点,提取与所述当前点直接相邻的具有较差坐标Pa(il,jl),Pb(i,j1),Pd(il,j)的三个点, 将当前点Pc与相邻点Pa,Pb和Pd的点进行比较。 比较点Pb和Pd的取向的值,如果点是轮廓点,并且其取向的值接近,则比较的结果被验证。 此外,当比较的结果被验证时,具有较差坐标的连接点的坐标被复制到具有优越坐标的点的坐标,仅验证点Pa(il,jl)是否是轮廓点 在提取的四个点Pa,Pb,Pc,Pd中的四个点中,并且在肯定的情况下,如果其大小大于预定阈值,则原点和最终点的坐标以及直线段的取向是 保存

    Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified
    4.
    发明授权
    Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified 有权
    用于检测代表图像的数字数据流中的直线段的处理和设备,其中识别出所述图像的轮廓点

    公开(公告)号:US07035466B2

    公开(公告)日:2006-04-25

    申请号:US10668765

    申请日:2003-09-23

    IPC分类号: G06K9/46

    摘要: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation θ of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i−1, j−1), Pb(i, j−1), Pd(i−1, j) directly neighboring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighboring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close. Moreover, when the result of a comparison is validated the coordinates of the point of the connection having inferior coordinates are copied over to those of the point having superior coordinates, it is verified whether solely the point Pa(i−1, j−1) is a contour point amongst the four points Pa, Pb, Pc, Pd extracted, and in the affirmative case the coordinates of the origin point and of the final point and the orientation of the straight-line segment, if its size is greater than a predetermined threshold, are saved.

    摘要翻译: 一种用于检测代表图像(m,n)的数字数据流中的直线段的过程,其中所述图像的轮廓点各自由它们的梯度的模量和取向θ相对于 水平轴被识别。 数字数据流以两条连续线的形式存储,对于每条线,n个点P(i,j)中的每一个,所述线的n个点被连续提取,并且对于每个点Pc(i,j) )提取所谓的当前点,与所述当前点直接相邻的具有较差坐标Pa(i-1,j-1),Pb(i,j-1),Pd(i-1,j)的三个点是 将当前点Pc的取向的值与相邻点Pa,Pb和Pd的取向进行比较。 比较点Pb和Pd的取向的值,如果点是轮廓点,并且其取向的值接近,则比较的结果被验证。 此外,当验证比较结果时,具有较差坐标的连接点的坐标被复制到具有优越坐标的点的坐标,仅验证点Pa(i-1,j-1) 是提取的四个点Pa,Pb,Pc,Pd之中的一个轮廓点,在肯定的情况下,直线段的原点和最终点的坐标以及方位的大小大于 预定阈值。

    AUTOMATIC DATA COLLECTION APPARATUS AND METHOD FOR VARIABLE FOCUS USING A DEFORMABLE MIRROR
    8.
    发明申请
    AUTOMATIC DATA COLLECTION APPARATUS AND METHOD FOR VARIABLE FOCUS USING A DEFORMABLE MIRROR 审中-公开
    自动数据采集装置和使用可变形镜可变焦点的方法

    公开(公告)号:US20070295817A1

    公开(公告)日:2007-12-27

    申请号:US11765827

    申请日:2007-06-20

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10702

    摘要: An automatic data collection device, such as a scanner-type device, is provided with a deformable mirror that operates in conjunction with a scanning mirror to scan a target machine-readable symbol using a scanning beam. The deformable mirror includes a reflective membrane having a shape that can be changed by applying electric charge to conductors, or by some other type of actuation. In this manner, the focus distance, depth of field, wavefront shape, or other property of the scanning beam can be changed dynamically. Feedback information can be provided to a focus control algorithm to control adjustment of the deformable mirror so as to optimize the scanning.

    摘要翻译: 诸如扫描仪型装置的自动数据采集装置设置有与扫描镜一起操作以使用扫描光束扫描目标机器可读符号的可变形反射镜。 可变形反射镜包括具有可以通过向导体施加电荷或通过某种其它类型的致动而改变的形状的反射膜。 以这种方式,可以动态地改变扫描光束的焦距,景深,波前形状或其它特性。 可以将反馈信息提供给聚焦控制算法,以控制可变形反射镜的调整,以优化扫描。

    Optoelectronic device for acquisition of images, in particular of bar codes
    10.
    发明授权
    Optoelectronic device for acquisition of images, in particular of bar codes 有权
    用于获取图像的光电装置,特别是条形码

    公开(公告)号:US06375076B1

    公开(公告)日:2002-04-23

    申请号:US09403483

    申请日:1999-10-21

    IPC分类号: G06K710

    CPC分类号: G06K7/10831

    摘要: An optoelectronic device for acquisition of images, such as images of bar codes, includes a case which contains an electronic scanning sensor, an illumination source and optics including a diaphragm that permit the formation of images on the sensor. The optics include at least two diopters disposed between the diaphragm and the sensor. For example, the diopters may take the form of a revolved symmetrical lens, the useful part of which is convex, and a cylindrical lens which does not create any deflection in a plane parallel to the optical plane, and is convergent in a plane perpendicular to the parallel plane.

    摘要翻译: 用于采集诸如条形码图像的图像的光电子器件包括包含电子扫描传感器,照明源和包括允许在传感器上形成图像的光阑的光学器件的壳体。 光学器件包括设置在隔膜和传感器之间的至少两个屈光度。 例如,屈光度可以采取旋转的对称透镜的形式,其有用的部分是凸起的,以及在平行于光学平面的平面中不产生任何挠曲的圆柱形透镜,并且在垂直于 平行平面。