公开(公告)号：US09219897B2

公开(公告)日：2015-12-22

申请号：US14276974

申请日：2014-05-13

Applicant: Faraday Technology Corp.

Inventor： Hung-Chang Chuang

IPC: G06K9/00 ,  H04N9/64 ,  G06T7/40 ,  G06K9/46 ,  G06K9/52

CPC classification number: H04N9/646 ,  G06K9/03 ,  G06K9/4642 ,  G06K9/4652 ,  G06K9/52 ,  G06T5/009 ,  G06T2207/10024 ,  H04N1/58 ,  H04N1/6041 ,  H04N9/67

Abstract: An image sensing apparatus, a color-correction matrix correcting method and a look-up table establishing method are provided. The image sensing apparatus calculates a block statistics value corresponding to a block of pixels in an image sensor array. Based on a look-up table, the image sensing apparatus determines a covariance value corresponding to a current gain value. According to the covariance value and the block statistics value, the image sensing apparatus corrects a color-correction matrix corresponding to the block of pixels. The image sensing apparatus can use an amended color-correction matrix to correct the color of the pixel, so as to reduce chroma noise or other noise.

Abstract translation: 提供了一种图像感测装置，色彩校正矩阵校正方法和查找表建立方法。 图像感测装置计算与图像传感器阵列中的像素块对应的块统计值。 基于查找表，图像感测装置确定与当前增益值对应的协方差值。 根据协方差值和块统计值，图像检测装置校正与像素块对应的颜色校正矩阵。 图像感测装置可以使用修正的颜色校正矩阵来校正像素的颜色，以便降低色度噪声或其他噪声。