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《Journal of Shanghai University of Engineering Science》 2016-01
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Temporal Noise Reduction Algorithm and Implementation Based on Orientation Gradient

NANSiyun;LI Hongyan;LIN Yihan;ZHOU Chengyang;College of Fundamental Studies,Shanghai University of Engineering Science;  
A temporal noise reduction algorithm based on orientation gradient was proposed.The motion vectors of adjacent images were calculated with motion estimation technology.Based on the calculation of orientation gradient of each pixel in the image,all pixels were divided into noise,boundary and inside pixels.The temporal weighted filter was adapted to the noise pixels and the original gray were kept to boundary and inside pixels.The experimental result in Matlab software simulation environment shows that the noise reduction algorithm can effectively reduce the noise in video signals and also protect image details.
【Fund】: 上海市大学生创新训练计划资助项目(cs1521003)
【CateGory Index】: TP391.41
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