Apparatus and method of extracting keypoint and image matching system for analyzing distribution state of contents using the same
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United States of America Patent
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May 2, 2017
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Oct 6, 2016
app pub date -
May 26, 2015
filing date -
Apr 1, 2015
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Abstract
A device and method of extracting a keypoint, and an image matching system for analyzing an online distribution situation of contents using the same are provided. The device for extracting a keypoint which is robust to image change, includes: a keypoint extraction unit configured to extract a corner region in an image as a keypoint candidate region, and extract the keypoint from the keypoint candidate region; and a keypoint postprocessing unit configured to generate a keypoint descriptor with respect to the extracted keypoint.
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