Patent ID: 9092857
Filing Date: 2015-07-28
Classification: G06T

Abstract:
1. A method for noise suppression in images of an image sequence in accordance with the following algorithm: where: p i,j n+1 =grayscale value of a pixel of the ith row and the jth column after the (n+1)th iteration, p Q α the algorithm being a recursive low-pass filter with an attenuation function α where γ i,j n+1 =weighting factor, and Q0 =reference grayscale value, the method including: inputting images of an image sequence that contain noise, performing an adaptation of the strength of the attenuation factor α defining the attenuation factors α setting up a movement measure as follows:  the movement measure being a function of a threshold value dif _swl and the movement measure determining whether the pixel is classified as dynamic or static, the method further including the following equation: performing a weighting of the attenuation factor α performing the recursive filtering of unmoved pixels with an attenuation factor α performing the recursive filtering of moved pixels with an attenuation factor α outputting the image sequence with the noise of the images being suppressed.