Subject tracking device and camera
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 13, 2013
Grant Date -
Dec 9, 2010
app pub date -
Jun 2, 2010
filing date -
Jun 8, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A subject tracking device includes: an input unit that sequentially inputs input images; an arithmetic operation unit that calculates a first similarity level between an initial template image and a target image and a second similarity level between an update template image and the target image; a position determining unit that determines a subject position based upon at least one of the first and the second similarity level; a decision-making unit that decides whether or not to update the update template image based upon the first and the second similarity level; and an update unit that generates a new update template image based upon the initial template image multiplied by a first weighting coefficient and the target image multiplied by a second weighting coefficient, and updates the update template image with the newly generated update template image, if the update template image is decided to be updated.
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