公开(公告)号：US09911024B2

公开(公告)日：2018-03-06

申请号：US14944248

申请日：2015-11-18

Applicant: COGNEX CORPORATION

Inventor： Xiangyun Ye ,  Xianju Wang ,  James A. Negro

IPC: G06K19/00 ,  G06K7/14 ,  G06K7/10

CPC classification number: G06K7/1443 ,  G06K7/10732 ,  G06K7/1417 ,  G06K7/146 ,  G06K7/1473 ,  G06K7/1491

Abstract: Systems and methods for reading a two-dimensional matrix symbol or for determining if a two-dimensional matrix symbol is decodable are disclosed. The systems and methods can include a data reading algorithm that receives an image, locates at least a portion of the data modules within the image without using a fixed pattern, fits a model of the module positions from the image, extrapolates the model resulting in predicted module positions, determines module values from the image at the predicted module positions, and extracts a binary matrix from the module values.

公开(公告)号：US20160140374A1

公开(公告)日：2016-05-19

申请号：US14944248

申请日：2015-11-18

Applicant: COGNEX CORPORATION

Inventor： Xiangyun Ye ,  Xianju Wang ,  James A. Negro

IPC: G06K7/14 ,  G06K7/10

CPC classification number: G06K7/1443 ,  G06K7/10732 ,  G06K7/1417 ,  G06K7/146 ,  G06K7/1473 ,  G06K7/1491

Abstract: Systems and methods for reading a two-dimensional matrix symbol or for determining if a two-dimensional matrix symbol is decodable are disclosed. The systems and methods can include a data reading algorithm that receives an image, locates at least a portion of the data modules within the image without using a fixed pattern, fits a model of the module positions from the image, extrapolates the model resulting in predicted module positions, determines module values from the image at the predicted module positions, and extracts a binary matrix from the module values.

Abstract translation: 公开了用于读取二维矩阵符号或用于确定二维矩阵符号是否可解码的系统和方法。 系统和方法可以包括接收图像的数据读取算法，在图像内定位数据模块的至少一部分，而不使用固定模式，从图像拟合模块位置的模型，外推模型，从而产生预测 模块位置，从预测模块位置的图像中确定模块值，并从模块值中提取二进制矩阵。

公开(公告)号：US11455482B2

公开(公告)日：2022-09-27

申请号：US17208907

申请日：2021-03-22

Applicant: COGNEX CORPORATION

Inventor： Xiangyun Ye ,  Xianju Wang ,  James A. Negro

IPC: G06K7/14 ,  G06K7/10

Abstract: Systems and methods for reading a two-dimensional matrix symbol or for determining if a two-dimensional matrix symbol is decodable are disclosed. The systems and methods can include a data reading algorithm that receives an image, locates at least a portion of the data modules within the image without using a fixed pattern, fits a model of the module positions from the image, extrapolates the model resulting in predicted module positions, determines module values from the image at the predicted module positions, and extracts a binary matrix from the module values.

公开(公告)号：US10956697B2

公开(公告)日：2021-03-23

申请号：US15896197

申请日：2018-02-14

Applicant: COGNEX CORPORATION

Inventor： Xiangyun Ye ,  Xianju Wang ,  James A. Negro

IPC: G06K19/00 ,  G06K7/14 ,  G06K7/10

Abstract: Systems and methods for reading a two-dimensional matrix symbol or for determining if a two-dimensional matrix symbol is decodable are disclosed. The systems and methods can include a data reading algorithm that receives an image, locates at least a portion of the data modules within the image without using a fixed pattern, fits a model of the module positions from the image, extrapolates the model resulting in predicted module positions, determines module values from the image at the predicted module positions, and extracts a binary matrix from the module values.

公开(公告)号：US20180012052A1

公开(公告)日：2018-01-11

申请号：US15463119

申请日：2017-03-20

Applicant: COGNEX CORPORATION

Inventor： Xianju Wang ,  Xiangyun Ye ,  James A. Negro ,  David Vekony ,  Robb Robles ,  Jozsef Borovszki ,  Steven G. Webster

IPC: G06K7/14 ,  H01L21/00

CPC classification number: G06K7/1491 ,  G06K7/1417 ,  H01L21/00

Abstract: Systems and methods are described for acquiring and decoding a plurality of images. First images are acquired and then processed to attempt to decode a symbol. Contributions of the first images to the decoding attempt are identified. An updated acquisition-settings order is determined based at least partly upon the contributions of the first images to the decoding attempt. Second images are acquired or processed based at least partly upon the updated acquisition-settings order.