-
公开(公告)号：US11875219B2
公开(公告)日：2024-01-16
申请号：US17567832
申请日：2022-01-03
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
IPC: G06K7/14 , G06K7/10 , H04N23/959 , H04N23/67
CPC classification number: G06K7/1443 , G06K7/10722 , G06K7/1413 , H04N23/959 , H04N23/671
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
公开(公告)号：US20240248283A1
公开(公告)日：2024-07-25
申请号：US18417651
申请日：2024-01-19
Applicant: Cognex Corporation
Inventor： Esther Oteo Lozano , Torsten Kempf, III , Nicole Dippel , Francisco Azcona Guerrero , Andreas Weber , Laurens Nunnink
Abstract: A modular lens assembly for a machine vision system includes a lens housing, a liquid lens disposed within the lens housing, a solid lens element disposed within the lens housing, and a lens processor device disposed within the lens housing and coupled to the liquid lens. The lens processor device may be configured to determine a control signal to control the liquid lens.
-
公开(公告)号：US10679024B2
公开(公告)日：2020-06-09
申请号：US16043716
申请日：2018-07-24
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
公开(公告)号：US11216630B2
公开(公告)日：2022-01-04
申请号：US16896164
申请日：2020-06-08
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
Patent Agency Ranking
公开(公告)号：US10937183B2
公开(公告)日：2021-03-02
申请号：US16259761
申请日：2019-01-28
Applicant: COGNEX CORPORATION
Inventor： José Fernandez-Dorado , Emilio Pastor Mira , Francisco Azcona Guerrero , Ivan Bachelder , Laurens Nunnink , Torsten Kempf , Savithri Vaidyanathan , Kyra Moed , John Bryan Boatner
Abstract: Determining dimensions of an object can include determining a distance between the object and an imaging device, and an angle of an optical axis of the imaging device. One of more features of the object can be identified in an image of the object. The dimensions of the object can be determined based upon the distance, the angle, and the one or more identified features.
-
公开(公告)号：US20240412019A1
公开(公告)日：2024-12-12
申请号：US18412900
申请日：2024-01-15
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
IPC: G06K7/14 , G06K7/10 , H04N23/67 , H04N23/959
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
公开(公告)号：US20220318539A1
公开(公告)日：2022-10-06
申请号：US17567832
申请日：2022-01-03
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
公开(公告)号：US20200242793A1
公开(公告)日：2020-07-30
申请号：US16259761
申请日：2019-01-28
Applicant: COGNEX CORPORATION
Inventor： José Fernandez-Dorado , Emilio Pastor Mira , Francisco Azcona Guerrero , Ivan Bachelder , Laurens Nunnink , Torsten Kempf , Savithri Vaidyanathan , Kyra Moed , John Bryan Boatner
Abstract: Determining dimensions of an object can include determining a distance between the object and an imaging device, and an angle of an optical axis of the imaging device. One of more features of the object can be identified in an image of the object. The dimensions of the object can be determined based upon the distance, the angle, and the one or more identified features.
-
公开(公告)号：US20200034591A1
公开(公告)日：2020-01-30
申请号：US16043716
申请日：2018-07-24
Applicant: Cognex Corporation
Inventor： Ivan A. Bachelder , Chen Gao , Francisco Azcona Guerrero , Jose Fernandez Dorado , Esther Oteo Lozano , Andreas Weber
Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
