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公开(公告)号：US20170289421A1
公开(公告)日：2017-10-05
申请号：US15083493
申请日：2016-03-29
CPC分类号： H04N5/2352 , G06K7/10722 , G06K7/10881 , G06K2007/10524 , H04N5/2256 , H04N5/2258 , H04N5/2353 , H04N5/2354 , H04N5/243
摘要： An imaging reader has near and far imagers for imaging illuminated targets to be read over a range of working distances. A range finder determines a distance to a target. A default imager captures a minor portion of an image of the target, and rapidly determines its light intensity level. At least one of the imagers is selected based on the determined distance and/or the determined light intensity level. The exposure and/or gain of the selected imager is set to a predetermined value, and an illumination level is determined, also based on the determined light intensity level and/or the determined distance. The selected imager, which has been set with the predetermined value, captures an image of the target, which has been illuminated at the illumination light level.
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公开(公告)号：US20170134614A1
公开(公告)日：2017-05-11
申请号：US14938355
申请日：2015-11-11
发明人： VLADIMIR GUREVICH , DAVID P. GOREN
CPC分类号： H04N1/40056 , G06K7/10732 , G06K7/10752 , G06K7/109 , H04N1/00519 , H04N1/02805 , H04N1/0288 , H04N1/40025 , H04N5/2354 , H04N5/3532 , H04N2201/0081
摘要： An array of pixels of a solid-state imaging sensor having a rolling shutter is sequentially exposed to capture images from an illuminated target over successive frames for image capture by an imaging reader. The target is illuminated at a peak output power level for a fractional time period of a frame, and is not illuminated for at least a portion of a remaining time period of the frame for increased energy efficiency. Only a sub-array of the pixels is exposed during the fractional time period in which the target is being illuminated at the first output power level.
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公开(公告)号：US20170351893A1
公开(公告)日：2017-12-07
申请号：US15174184
申请日：2016-06-06
发明人： GARY G. SCHNEIDER , DAVID P. GOREN
CPC分类号： G06K7/146 , G06K7/10722 , G06K9/228 , H04N1/58 , H04N1/6008 , H04N1/6027 , H04N1/6072 , H04N1/6077 , H04N2201/0081
摘要： A color image of a target is captured by a color sensor in an imaging reader. A color image processing pipeline processes the captured color image with a plurality of color image processing components to display the image of a target with high fidelity. One or more of the components are bypassed to decode the image of a symbol target to prevent degradation of reader performance.
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公开(公告)号：US20170343345A1
公开(公告)日：2017-11-30
申请号：US15165117
申请日：2016-05-26
发明人： CARL D. WITTENBERG , DAVID P. GOREN
CPC分类号： G01C3/08 , G01C3/085 , G01C3/10 , G01S17/48 , H04N5/2252 , H04N5/2256 , H04N5/2258 , H04N5/23212 , H04N5/2351
摘要： A distance to a target to be read by image capture over a range of working distances is determined by directing an aiming light spot along an aiming axis to the target, and by capturing a first image of the target containing the aiming light spot, and by capturing a second image of the target without the aiming light spot. Each image is captured in a frame over a field of view having an imaging axis offset from the aiming axis. An image pre-processor compares first image data from the first image with second image data from the second image over a common fractional region of both frames to obtain a position of the aiming light spot in the first image, and determines the distance to the target based on the position of the aiming light spot in the first image.
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公开(公告)号：US20150242669A1
公开(公告)日：2015-08-27
申请号：US14711883
申请日：2015-05-14
CPC分类号： G06K7/10722 , G06K7/10831 , G06K7/1417
摘要： A method includes the following: (1) projecting a light pattern towards a target object; (2) detecting light returned from the target object through an imaging lens arrangement with an imaging sensor to capture a first image with changes in the position of the focus plane of the imaging lens arrangement; (3) processing the first image to determine an optimized position of the focus plane of the imaging lens arrangement; (4) detecting light returned from the target object with the imaging sensor to capture a second image when the position of the focus plane of the imaging lens arrangement is maintained at the optimized position; and (5) decoding a barcode in the second image.
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