Invention Grant
US09106813B2 Noise suppression devices and image capturing apparatuses having the same 有权
噪声抑制装置和具有该噪声抑制装置的图像捕获装置

Noise suppression devices and image capturing apparatuses having the same
Abstract:
A noise elimination device includes a low pass filter unit, a noise filtering unit and a signal synthesis unit. The low pass filter unit generates a low frequency image signal by separating low frequency elements from an input image signal. The noise filtering unit generates a filtered image signal by suppressing noise in the low frequency image signal in horizontal and vertical directions. The signal synthesis unit generates an output image signal by combining the high frequency image signal and the filtered image signal.
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