Image processing method and image processing device for generating rectangular mask in image according to different field of views
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United States of America Patent
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Jan 30, 2018
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Nov 13, 2015
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Dec 16, 2014
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Abstract
An image processing method includes steps of obtaining a first image under a first field of view; generating a first rectangular mask in the first image; converting first X-Y plane coordinates of four end points of the first rectangular mask into spherical coordinates; obtaining a second image under a second field of view; converting the spherical coordinates into second X-Y plane coordinates corresponding to the second image; determining whether the second X-Y plane coordinates of the end points all are located in the second image; and if the second X-Y plane coordinates of the end points all are located in the second image, generating a second rectangular mask in the second image by a maximum X coordinate value, a maximum Y coordinate value, a minimum X coordinate value and a minimum Y coordinate value of the second X-Y plane coordinates of the end points.
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