SYSTEM AND METHOD FOR THREE-DIMENSIONAL SCAN OF MOVING OBJECTS LONGER THAN THE FIELD OF VIEW

SYSTEM AND METHOD FOR THREE-DIMENSIONAL SCAN OF MOVING OBJECTS LONGER THAN THE FIELD OF VIEW

This invention provides a system and method for using an area scan sensor of a vision system, in conjunction with an encoder or other knowledge of motion, to capture an accurate measurement of an object larger than a single field of view (FOV) of the sensor. It identifies features/edges of the objec...

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Hauptverfasser: LIU, Yukang, CAREY, Ben R, CHIANG, Gilbert, PARRETT, Andrew
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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creator LIU, Yukang
CAREY, Ben R
CHIANG, Gilbert
PARRETT, Andrew
description This invention provides a system and method for using an area scan sensor of a vision system, in conjunction with an encoder or other knowledge of motion, to capture an accurate measurement of an object larger than a single field of view (FOV) of the sensor. It identifies features/edges of the object, which are tracked from image to image, thereby providing a lightweight way to process the overall extents of the object for dimensioning purposes. Logic automatically determines if the object is longer than the FOV, and thereby causes a sequence of image acquisition snapshots to occur while the moving/conveyed object remains within the FOV until the object is no longer present in the FOV. At that point, acquisition ceases and the individual images are combined as segments in an overall image. These images can be processed to derive overall dimensions of the object based on input application details.
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subjects CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title SYSTEM AND METHOD FOR THREE-DIMENSIONAL SCAN OF MOVING OBJECTS LONGER THAN THE FIELD OF VIEW
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