Device and method for operating cameras and light sources wherein parasitic reflections from a paired light source are not reflected into the paired camera
First Claim
1. A device comprising:
- a support structure;
a plurality of cameras spaced along the support structure, wherein adjacent cameras have partially overlapping fields of view directed away from the support structure; and
,a plurality of light sources comprising at least one light source paired with each of the plurality of cameras,wherein a paired light source is located at a distance from a paired camera that illuminates an object imaged by the paired camera, and where parasitic reflections from the paired light source are not reflected into the paired camera, andwherein the paired light source and the paired camera are operated at a different time from other paired light sources and other paired cameras located where the parasitic reflections from the paired light source are reflected into the other paired cameras.
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Abstract
Provided herein is a device and method for improved operating of cameras and light sources of a mobile automation apparatus. Light sources are operated to periodically provide illumination light for a camera operating according to a given exposure time and frequency, with a pulse duration having a respective frequency that is an integer multiple of the camera frequency, and higher than a threshold frequency where successive activations of the light sources are imperceptible. Furthermore, a light source paired with a camera is located at a distance from the paired camera that illuminates an object imaged by the paired camera, and where parasitic reflections from the paired light source are not reflected into the paired camera.
118 Citations
10 Claims
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1. A device comprising:
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a support structure; a plurality of cameras spaced along the support structure, wherein adjacent cameras have partially overlapping fields of view directed away from the support structure; and
,a plurality of light sources comprising at least one light source paired with each of the plurality of cameras, wherein a paired light source is located at a distance from a paired camera that illuminates an object imaged by the paired camera, and where parasitic reflections from the paired light source are not reflected into the paired camera, and wherein the paired light source and the paired camera are operated at a different time from other paired light sources and other paired cameras located where the parasitic reflections from the paired light source are reflected into the other paired cameras. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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at device comprising;
a controller;
a support structure;
a plurality of cameras spaced along the support structure, wherein adjacent cameras have partially overlapping fields of view directed away from the support structure; and
, a plurality of light sources comprising at least one light source paired with each of the plurality of cameras, wherein a paired light source is located at a distance from a paired camera that illuminates an object imaged by the paired camera, and where parasitic reflections from the paired light source are not reflected into the paired camera,controlling, using the controller, the paired light source and the paired camera to operate at a different time from other paired light sources and other paired cameras located where the parasitic reflections from the paired light source are reflected into the other paired cameras; and controlling, using the controller, the paired light source and the paired camera to operate at a same time as associated paired light sources and associated paired cameras, the paired camera and the associated paired cameras each located where respective parasitic reflections from the paired light source and the associated paired light sources are not reflected into the paired camera and the associated paired cameras.
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Specification