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Cognex Corporation patents


Recent patent applications related to Cognex Corporation. Cognex Corporation is listed as an Agent/Assignee. Note: Cognex Corporation may have other listings under different names/spellings. We're not affiliated with Cognex Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cognex Corporation-related inventors


Systems and methods for sorting image acquisition settings for pattern stitching and decoding using multiple captured images

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... Cognex Corporation

System and connecting mobile devices with machine vision systems

A connecting system is provided for machine vision operations using a mobile device. The connecting system can include a machine vision system with an imaging device, as well as an identification feature associated with the machine vision system. The identification feature can include at least one of: a symbol for... Cognex Corporation

Decoding barcodes

Systems and methods are provided for decoding barcodes. A scan signal is acquired along a scan through a barcode. A first character unit grid for a unit width pattern within the barcode along the scan is determined. At least one set of sampling coefficients relating the unit width pattern to... Cognex Corporation

Systems and methods reduce temperature induced drift effects on a liquid lens

Systems and methods reduce temperature induced drift effects on a liquid lens used in a vision system. A feedback loop receives a temperature value from a temperature sensor, and based on the received temperature value, controls a power to the heating element based on a difference between the measured temperature... Cognex Corporation

Mark reader with reduced trigger-to-decode response time

Systems and methods for use with a handheld mark reader that reduce the time between activation of the reader's trigger and the reader returning a successful decode response. Image processing may be performed prior to the user actuating the trigger and thus obtaining a decodable image with reduced delay. Separate... Cognex Corporation

System and efficient surface measurement using a laser displacement sensor

This invention provides a system for measuring displacement of an object surface having a displacement sensor that projects a line on the object surface and receives light from the projected line at an imager in a manner defines a plurality of displacement values in a height direction. A vision system... Cognex Corporation

Optical accessory for attachment to mobile device

An attachment for use with a mobile device with an imaging device and a mobile-device light source can include one or more of an attachment base and an attachment body. The attachment base can be configured to secure the attachment body to the mobile device via a case for the... Cognex Corporation

Constant magnification lens for vision system camera

This invention provides a lens assembly for a vision system, allowing for a constant magnification at various focal distances. The lens assembly resides movably/adjustably along the optical axis relative to the sensor. In an embodiment, the lens assembly includes a fixed rear lens and a front lens that is moved... Cognex Corporation

Method and industrial identification mark verification

The invention provides methods and apparatus for analysis of images of direct part mark identification codes to measure and assess a print quality. Methods to assess the quality of a direct part mark identification code are presented that provide diagnostic information of a code that cannot be assessed using verification... Cognex Corporation

System and finding lines in an image with a vision system

This invention provides a system and method for finding multiple line features in an image. Two related steps are used to identify line features. First, the process computes x and y-components of the gradient field at each image location, projects the gradient field over a plurality subregions, and detects a... Cognex Corporation

System and efficiently scoring probes in an image with a vision system

A system and method for scoring trained probes for use in analyzing one or more candidate poses of a runtime image is provided. A set of probes with location and gradient direction based on a trained model are applied to one or more candidate poses based upon a runtime image.... Cognex Corporation

System and detecting defects on a specular surface with a vision system

This invention provides a system and method for detecting and imaging specular surface defects on a specular surface that employs a knife-edge technique in which the camera aperture or an external device is set to form a physical knife-edge structure within the optical path that effectively blocks reflected rays from... Cognex Corporation

System and connecting mobile devices with machine vision systems

A connecting system is provided for machine vision operations using a mobile device. The connecting system can include a machine vision system with an imaging device, as well as an identification feature associated with the machine vision system. The identification feature can include at least one of: a symbol for... Cognex Corporation

System and determination and adjustment of camera parameters using multi-gain images

This invention provides a system and method for auto-regulation of parameters a vision system camera and/or associated illumination of objects imaged by the camera using a plurality of differentiated gain (multi-gain) settings on the camera's image sensor to determine the gain value producing the most-readable image. The image (having the... Cognex Corporation

Spatially self-similar patterned illumination for depth imaging

Methods, systems, and devices involving patterned radiation are provided in accordance with various embodiments. Some embodiments include a device for projecting pattern radiation. Some embodiments include a method for estimating coordinates of a location on an object in a 3D scene. Some embodiments include a system for estimating the coordinates... Cognex Corporation

Machine vision system for forming a one dimensional digital representation of a low information content scene

A machine vision system to form a one dimensional digital representation of a low information content scene, e.g., a scene that is sparsely illuminated by an illumination plane, and the one dimensional digital representation is a projection formed with respect to columns of a rectangular pixel array of the machine... Cognex Corporation

System and scoring clutter for use in 3d point cloud matching in a vision system

This invention provides a system and method for aligning first three-dimensional (3D) point cloud image representing a model with a second 3D point cloud image representing a target, using a vision system processor. A passing overall score is established for possible alignments of the first 3D point cloud image with... Cognex Corporation

System and tying together machine vision coordinate spaces in a guided assembly environment

This invention provides a system and method that ties the coordinate spaces at the two locations together during calibration time using features on a runtime workpiece instead of a calibration target. Three possible scenarios are contemplated: wherein the same workpiece features are imaged and identified at both locations; wherein the... Cognex Corporation

Systems and methods reduce temperature induced drift effects on a liquid lens

Systems and methods reduce temperature induced drift effects on a liquid lens used in a vision system. A feedback loop receives a temperature value from a temperature sensor, and based on the received temperature value, controls a power to the heating element based on a difference between the measured temperature... Cognex Corporation

Machine vision 3d line scan image acquisition and processing

A machine vision system may perform compressive sensing by aggregating signals from multiple pixels. The aggregation of signals may be based on a sampling function. The sampling function may be formed of a product of a random basis, which may be sparse, and a filtering function.... Cognex Corporation

Machine vision system calibration

Disclosed herein are systems and methods for machine vision. A machine vision system includes a motion rendering device, a first image sensor, and a second image sensor. The machine visions system includes a processor configured to run a computer program stored in memory that is configured to determine a first... Cognex Corporation

Handheld quantifying component features

A handheld device and method using the device, the device comprising a sensor receiving light from within a field of view (FOV) to generate a plurality of consecutive images of the FOV, a structured light source that is controllable to generate a plurality of light patterns, the source arranged to... Cognex Corporation

Vision system for training an assembly system through virtual assembly of objects

This invention provides a system and method for guiding the workpieces to optimal positions to train an assembly system that is generally free of the use of a CMM or similar metrology device. The system and method expresses the image features of the workpieces, when they are in their respective... Cognex Corporation

Optical accessory for attachment to mobile device

An attachment for use with a mobile device with an imaging device or with a case for the mobile device can include one or more of an attachment base and an attachment body. The attachment base can be configured to be secured to at least one of the mobile device... Cognex Corporation








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