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公开(公告)号：US20200020130A1
公开(公告)日：2020-01-16
申请号：US16422693
申请日：2019-05-24
Applicant: Cognex Corporation
Inventor： Aaron Wallack , John Filhaber , George Costigan
Abstract: The present disclosure provides a high resolution structured light system that is also capable of maintaining high throughput. The high resolution structured light system includes one or more image capture devices, such as a camera and/or an image sensor, a projector, and a blurring element. The projector is configured to project a binary pattern so that the projector can operate at high throughput. The binary projection pattern is subsequently filtered by the blurring element to remove high frequency components of the binary projection pattern. This filtering smoothes out sharp edges of the binary projection pattern, thereby creating a blurred projection pattern that changes gradually from the low value to the high value. This gradual change can be used by the structured light system to resolve spatial changes in the 3D profile that could not otherwise be resolved using a binary pattern.
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公开(公告)号：US09584730B2
公开(公告)日：2017-02-28
申请号：US14171251
申请日：2014-02-03
Applicant: Cognex Corporation
Inventor： George Costigan , Laurens Nunnink , Aaron Wallack , Roger Sumner
IPC: H04N3/14 , H04N5/232 , H04N5/225 , H04N5/335 , G01M17/02 , G01N21/88 , G02B7/28 , G01N21/956 , G01B11/24
CPC classification number: H04N5/23296 , G01B11/24 , G01M17/027 , G01N21/8806 , G01N2021/95638 , G02B7/28 , H04N3/155 , H04N3/1562 , H04N5/2252 , H04N5/2253 , H04N5/335 , Y10T29/49002
Abstract: The disclosed apparatus, systems, and methods provide for a displacement sensor with a multi-position image sensor. The displacement sensor includes an optical lens. The displacement sensor includes an image sensor configured to view an object through the lens along a plane of focus that is not parallel to an image plane of the image sensor. The displacement sensor includes a laser for illuminating the object by the displacement sensor, wherein the laser is: spaced from the lens at a fixed distance, and configured to project a line of light along the plane of focus of the image sensor. The displacement sensor comprises a first configuration wherein the image sensor is at a first location along an image plane with a first field of view along the plane of focus, and a second configuration at a second location with a different field of view.
Abstract translation: 所公开的装置，系统和方法为具有多位置图像传感器的位移传感器提供。 位移传感器包括光学透镜。 位移传感器包括图像传感器，该图像传感器被配置为沿着不平行于图像传感器的图像平面的焦点平面通过透镜来观察物体。 位移传感器包括用于通过位移传感器照亮物体的激光器，其中激光器与透镜以固定距离间隔开，并且被配置为沿着图像传感器的焦点平面投射光线。 位移传感器包括第一配置，其中图像传感器沿着具有沿着焦平面的第一视场的图像平面处于第一位置，并且在具有不同视场的第二位置处具有第二配置。
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公开(公告)号：US10803622B2
公开(公告)日：2020-10-13
申请号：US16422693
申请日：2019-05-24
Applicant: Cognex Corporation
Inventor： Aaron Wallack , John Filhaber , George Costigan
Abstract: The present disclosure provides a high resolution structured light system that is also capable of maintaining high throughput. The high resolution structured light system includes one or more image capture devices, such as a camera and/or an image sensor, a projector, and a blurring element. The projector is configured to project a binary pattern so that the projector can operate at high throughput. The binary projection pattern is subsequently filtered by the blurring element to remove high frequency components of the binary projection pattern. This filtering smoothes out sharp edges of the binary projection pattern, thereby creating a blurred projection pattern that changes gradually from the low value to the high value. This gradual change can be used by the structured light system to resolve spatial changes in the 3D profile that could not otherwise be resolved using a binary pattern.
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公开(公告)号：US10360693B2
公开(公告)日：2019-07-23
申请号：US15446316
申请日：2017-03-01
Applicant: Cognex Corporation
Inventor： Aaron Wallack , John Filhaber , George Costigan
Abstract: The present disclosure provides a high resolution structured light system that is also capable of maintaining high throughput. The high resolution structured light system includes one or more image capture devices, such as a camera and/or an image sensor, a projector, and a blurring element. The projector is configured to project a binary pattern so that the projector can operate at high throughput. The binary projection pattern is subsequently filtered by the blurring element to remove high frequency components of the binary projection pattern. This filtering smoothes out sharp edges of the binary projection pattern, thereby creating a blurred projection pattern that changes gradually from the low value to the high value. This gradual change can be used by the structured light system to resolve spatial changes in the 3D profile that could not otherwise be resolved using a binary pattern.
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