公开(公告)号：US20180157886A1

公开(公告)日：2018-06-07

申请号：US15700620

申请日：2017-09-11

Applicant: COGNEX CORPORATION

Inventor： James Negro ,  John F. Keating ,  Michael C. Moed

IPC: G06K7/14 ,  G06K7/10

CPC classification number: G06K7/1465 ,  G06K7/10722 ,  G06K7/10762 ,  G06K7/10871 ,  G06K7/1417 ,  G06K7/1443

Abstract: A method and apparatus for decoding codes applied to objects for use with a camera and a conveyor system wherein the camera includes an image sensor having a two dimensional field of view (FOV) and the conveyor system moves objects through the FOV such that objects enter the FOV along an entry edge and exit the FOV along an exit edge, the method comprising the steps of providing a processor programmed to perform the steps of obtaining images of the FOV, for each image identifying code candidates in at least portions of the image, ordering at least a subset of the code candidates for decoding in a candidate order wherein the candidate order is determined at least in part as a function of the first direction of travel through the FOV, attempting to decode code candidates in the order specified by the direction of travel and when a new image event occurs, foregoing attempts to decode at least a portion of the identified code candidates.

公开(公告)号：US09760752B2

公开(公告)日：2017-09-12

申请号：US14191695

申请日：2014-02-27

Applicant: COGNEX CORPORATION

Inventor： James Negro ,  John F. Keating ,  Michael C. Moed

IPC: G06K7/10 ,  G06K7/14

CPC classification number: G06K7/1465 ,  G06K7/10722 ,  G06K7/10762 ,  G06K7/10871 ,  G06K7/1417 ,  G06K7/1443

Abstract: A method and apparatus for decoding codes applied to objects for use with a camera and a conveyor system wherein the camera includes an image sensor having a two dimensional field of view (FOV) and the conveyor system moves objects in a first direction of travel through the FOV such that objects enter the FOV along an entry edge and exit the FOV along an exit edge, the method comprising the steps of providing a processor programmed to perform the steps of obtaining images of the FOV, for each image identifying code candidates in at least portions of the image, ordering at least a subset of the code candidates for decoding in a candidate order wherein the candidate order is determined at least in part as a function of the first direction of travel through the FOV, attempting to decode code candidates in the order specified by the direction of travel and when a new image event occurs, foregoing attempts to decode at least a portion of the identified code candidates.

公开(公告)号：US20150036876A1

公开(公告)日：2015-02-05

申请号：US13957413

申请日：2013-08-01

Applicant: Cognex Corporation

Inventor： Cyril C. Marrion ,  James Negro ,  Matthew Engle

IPC: G06K9/20 ,  G06K9/32

CPC classification number: G06K9/2054 ,  G06K9/3241 ,  G06T7/73 ,  G06T2207/10028 ,  G06T2207/30164

Abstract: Described are machine vision systems, methods, and apparatus, including computer program products for associating codes with objects. In an embodiment, a machine vision system includes an area-scan camera having a field of view (FOV), the area-scan camera disposed relative to a first workspace such that the FOV covers at least a portion of the first workspace and a dimensioner disposed relative to a second workspace. The machine vision system includes a machine vision processor configured to: determine an image location of a code in an image; determine a ray in a shared coordinate space that is a back-projection of the image location of the code; determine one or more surfaces of one or more objects based on dimensioning data; determine a first surface of the one or more surfaces that intersects the 3D ray; and associate the code with an object associated with the first surface.

Abstract translation: 描述的是机器视觉系统，方法和装置，包括用于将代码与对象相关联的计算机程序产品。 在一个实施例中，机器视觉系统包括具有视场（FOV）的区域扫描照相机，相对于第一工作空间设置的区域扫描照相机，使得FOV覆盖第一工作空间的至少一部分，以及尺寸 相对于第二工作空间布置。 机器视觉系统包括机器视觉处理器，其被配置为：确定图像中的代码的图像位置; 确定作为代码的图像位置的反投影的共享坐标空间中的射线; 基于尺寸数据确定一个或多个对象的一个​​或多个表面; 确定与3D射线相交的一个或多个表面的第一表面; 并将代码与与第一表面相关联的对象相关联。

公开(公告)号：US10325129B2

公开(公告)日：2019-06-18

申请号：US15700620

申请日：2017-09-11

Applicant: COGNEX CORPORATION

Inventor： James Negro ,  John F. Keating ,  Michael C. Moed

IPC: G06K7/10 ,  G06K7/14

Abstract: A method and apparatus for decoding codes applied to objects for use with a camera and a conveyor system wherein the camera includes an image sensor having a two dimensional field of view (FOV) and the conveyor system moves objects through the FOV such that objects enter the FOV along an entry edge and exit the FOV along an exit edge, the method comprising the steps of providing a processor programmed to perform the steps of obtaining images of the FOV, for each image identifying code candidates in at least portions of the image, ordering at least a subset of the code candidates for decoding in a candidate order wherein the candidate order is determined at least in part as a function of the first direction of travel through the FOV, attempting to decode code candidates in the order specified by the direction of travel and when a new image event occurs, foregoing attempts to decode at least a portion of the identified code candidates.

公开(公告)号：US09904833B2

公开(公告)日：2018-02-27

申请号：US15148305

申请日：2016-05-06

Applicant: COGNEX CORPORATION

Inventor： James Negro ,  Xiangyun Ye

IPC: G06K9/18 ,  G06K7/14 ,  G06K7/10 ,  G06K19/06

CPC classification number: G06K7/1447 ,  G06K7/10722 ,  G06K7/10881 ,  G06K7/1404 ,  G06K7/1417 ,  G06K9/18 ,  G06K19/06037

Abstract: A method and apparatus for decoding codes applied to objects for use with an image sensor that includes a two dimensional field of view (FOV), the method including the steps of providing a processor programmed to perform the steps of obtaining an image of the FOV, attempting to decode a code candidate in the image using a first decode algorithm, and where the attempt to decode the code candidate fails, maintaining the image in memory. The method including repeating the above steps until one of a threshold number of attempts to decode the code candidate have failed and the code candidate has been successfully decoded. Further, the method includes accessing the images maintained in memory and attempting to decode the code candidate in at least a subset of the images stored in memory using a second decode algorithm that is different than the first decode algorithm.

公开(公告)号：US20160321490A1

公开(公告)日：2016-11-03

申请号：US15148305

申请日：2016-05-06

Applicant: COGNEX CORPORATION

Inventor： James Negro ,  Xiangyun Ye

IPC: G06K7/14 ,  G06K19/06 ,  G06K7/10

CPC classification number: G06K7/1447 ,  G06K7/10722 ,  G06K7/10881 ,  G06K7/1404 ,  G06K7/1417 ,  G06K9/18 ,  G06K19/06037

Abstract: A method and apparatus for decoding codes applied to objects for use with an image sensor that includes a two dimensional field of view (FOV), the method comprising the steps of providing a processor programmed to perform the steps of obtaining an image of the FOV and applying different decode algorithms to code candidates in the obtained image to attempt to decode the code candidates wherein the decode algorithm applied to each candidate is a function of the location of the code candidate in the FOV.

Abstract translation: 一种用于对应用于包括二维视场（FOV）的图像传感器使用的对象的代码进行解码的方法和装置，所述方法包括以下步骤：提供被编程为执行以下步骤的处理器：获得所述FOV的图像;以及 应用不同的解码算法对所获得的图像中的候选进行编码，以尝试对代码候选进行解码，其中应用于每个候选的解码算法是FOV中代码候选的位置的函数。

公开(公告)号：US09305231B2

公开(公告)日：2016-04-05

申请号：US13957413

申请日：2013-08-01

Applicant: Cognex Corporation

Inventor： Cyril C. Marrion ,  James Negro ,  Matthew Engle

IPC: G06K9/00 ,  G06K9/20 ,  G06K9/32 ,  G06T7/00 ,  G06K7/10

CPC classification number: G06K9/2054 ,  G06K9/3241 ,  G06T7/73 ,  G06T2207/10028 ,  G06T2207/30164

Abstract: Described are machine vision systems, methods, and apparatus, including computer program products for associating codes with objects. In an embodiment, a machine vision system includes an area-scan camera having a field of view (FOV), the area-scan camera disposed relative to a first workspace such that the FOV covers at least a portion of the first workspace and a dimensioner disposed relative to a second workspace. The machine vision system includes a machine vision processor configured to: determine an image location of a code in an image; determine a ray in a shared coordinate space that is a back-projection of the image location of the code; determine one or more surfaces of one or more objects based on dimensioning data; determine a first surface of the one or more surfaces that intersects the 3D ray; and associate the code with an object associated with the first surface.

Abstract translation: 描述的是机器视觉系统，方法和装置，包括用于将代码与对象相关联的计算机程序产品。 在一个实施例中，机器视觉系统包括具有视场（FOV）的区域扫描照相机，相对于第一工作空间设置的区域扫描照相机，使得FOV覆盖第一工作空间的至少一部分，以及尺寸 相对于第二工作空间布置。 机器视觉系统包括机器视觉处理器，其被配置为：确定图像中的代码的图像位置; 确定作为代码的图像位置的反投影的共享坐标空间中的射线; 基于尺寸数据确定一个或多个对象的一个​​或多个表面; 确定与3D射线相交的一个或多个表面的第一表面; 并将代码与与第一表面相关联的对象相关联。