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

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United States of America Patent

PATENT NO 9413981
SERIAL NO

13794618

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Abstract

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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 best characteristics) acquired using multiple gain settings can be read for information as a discrete gain image and/or the camera parameters (e.g. global gain and/or global exposure time) can be uniformly set across the pixel array to the best values for acquisition of a subsequent, higher sampled image. This image is then read (e.g. decoded) for information contained within any identified features of interest (e.g. found IDs).

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Patent Owner(s)

Patent OwnerAddress
COGNEX CORPORATIONONE VISION DRIVE NATICK MA 01760

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Negro, James A Arlington, US 43 320
Stokes, Earle B Westford, US 6 58

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