公开(公告)号：EP2584782A1

公开(公告)日：2013-04-24

申请号：EP11795480.0

申请日：2011-05-09

申请人： Sony Corporation

发明人： NOMURA, Yoshikuni ,  MITSUNAGA, Tomoo ,  ZHANG, Ting ,  MATSUSHITA, Nobuyuki

IPC分类号： H04N9/07

CPC分类号： G06K9/32 ,  G06T5/002 ,  G06T5/004 ,  G06T2207/20192 ,  G06T2207/20221 ,  H04N9/045

摘要： The present invention provides an apparatus and a method to perform an interpolation process of a color mosaic image generated through an imaging process by a single-plate color imaging element. The color mosaic image generated through the imaging process by the single-plate color imaging element is input, estimation is performed for a pixel value low frequency component and a noise high frequency component corresponding to a pixel interpolation position, and calculation for a pixel value at the pixel interpolation position is performed by applying an addition result thereof. An edge-adaptive interpolation processing unit calculates a pixel value at the pixel interpolation position by using a pixel value of a reference pixel located in an edge direction. A blend processing unit calculates a final interpolation pixel value by blending the edge-adaptive interpolation pixel value and the addition result of the pixel value low frequency component and the noise high frequency component corresponding to the pixel interpolation position in accordance with flatness at the pixel interpolation position.

摘要翻译： 本发明提供了一种用于执行通过单板彩色成像元件的成像处理而生成的彩色马赛克图像的插值处理的设备和方法。 输入通过单板彩色成像元件的成像处理产生的彩色马赛克图像，对与像素插值位置对应的像素值低频分量和噪声高频分量进行估计，并计算像素值在 通过应用其相加结果来执行像素内插位置。 边缘自适应插值处理单元通过使用位于边缘方向上的参考像素的像素值来计算像素插值位置处的像素值。 混合处理单元根据像素插值处的平坦度，通过混合边缘自适应插值像素值以及与像素插值位置对应的像素值低频分量和噪声高频分量的相加结果来计算最终插值像素值 位置。