Patent ID: 7738042
Filing Date: 2010-06-15
Classification: G06T,H04N

Abstract:
1. A noise reduction device, comprising: a frame delay module to generate a delay frame by delaying an input frame of a video signal in each frame; a first difference generate module to generate a first difference value between the delay frame and the input frame; a first line delay module to generate a first line delay frame by delaying the input frame in each line; a second line delay module to generate a second line delay frame by delaying the delay frame in each line; a second difference generate module to generate a second difference value between the input frame and the first line delay frame; a third difference generate module to generate a third difference value between the delay frame and the second line delay frame; a fourth difference generate module to generate a fourth difference value between the first line delay frame and the second line delay frame; a first correction module to correct the input frame by using the first difference value based on a logical sum or a logical product of the third difference value and the fourth difference value; and a second correction module to correct the delay frame by using the first difference value based on a logical sum or a logical product of the second difference value and the fourth difference value.