Signal processing device and imaging device
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United States of America Patent
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Aug 12, 2014
Grant Date -
Aug 25, 2011
app pub date -
Feb 23, 2011
filing date -
Feb 23, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, a signal processing device includes a high spatial frequency range component evaluation unit configured to evaluate a high spatial frequency range component of each of basic colors for each of divided regions for an image picked up by an image pickup device, the divided regions being obtained by dividing an imaging surface of the image pickup device into a plurality of regions, a subject distance estimation unit configured to estimate a subject distance for each of the divided regions on the basis of the high spatial frequency range component, a filter coefficient generating unit configured to generate a filter coefficient for each of the divided regions on the basis of the subject distance, and a filter operation unit configured to perform a filter operation on the high spatial frequency range component by use of the filter coefficient.
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