| 摘要 |
<p>A method for filtering the noise of a sequence of digital images (Img1,..., Imgn, Imgn+1,...) in CFA format comprising the following phases: processing a first CFA image (Imgn-1) of the sequence to obtain a corresponding improved CFA image (f_Imgn-1) with reduced noise; processing at least one pixel (pn(x,y)) of a second CFA image (Imgn) of the sequence that temporally follows said first image (Imgn-1), said phase of processing at least one pixel providing a corresponding filtered pixel (f_pn(x,y)) and including the following operations: selecting (SW_ sel) a first set of pixels (SWn(x,y)) comprising said at least one pixel and a plurality of pixels of the second CFA image spatially adjacent to it; selecting (TW_sel) a second set of pixels (TWn(x,y)) comprising pixels of the improved CFA image homologous with the pixels of said first set; carrying out a digital filtering of a first type (ST_fliter) using pixels forming part of said first and second set to generate the filtered pixel (f_pn(x,y)). <IMAGE></p> |
