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    • 1. 发明授权
    • Signal processing device and imaging device
    • 信号处理装置及成像装置
    • US08804025B2
    • 2014-08-12
    • US13032967
    • 2011-02-23
    • You YoshiokaToshihiko Kaneshige
    • You YoshiokaToshihiko Kaneshige
    • H04N5/232H04N3/14H04N9/73
    • H04N9/045G06T5/002G06T5/003G06T2207/10024G06T2207/20012G06T2207/20021H04N5/23212
    • 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.
    • 根据一个实施例,信号处理装置包括高空间频率范围分量评估单元,被配置为针对由图像拾取装置拾取的图像的每个分割区域评估每个基本颜色的高空间频率范围分量, 通过将图像拾取装置的成像表面划分为多个区域获得的区域;被摄体距离估计单元,被配置为基于高空间频率范围分量来估计每个分割区域的被摄体距离;滤波器系数 生成单元,被配置为基于所述被摄体距离来生成每个所述分割区域的滤波器系数;以及滤波器操作单元,被配置为通过使用所述滤波器系数对所述高空间频率范围分量执行滤波操作。