基于自适应牛顿算法的LED视频显示系统的研制

LED显示屏已被广泛应用于各种场合,通常情况下,需要对视频图像进行缩放处理,从而符合LED显示屏的物理分辨率.针对传统LED插值缩放算法在插值后导致图像边缘模糊的现象,提出了一种自适应牛顿播值算法,通过在插值之前进行像素相关度的自适应判断,可以较好地保留图像的高频信息,消除图像边缘模糊的问题.同时,给出了基于自适应牛顿算法的LED视频显示系统的FPGA实现,系统最终可以实现较好的显示效果.

Research of LED Display System based on Adaptive Newton Interpolation Algorithm

LED display has been widely used in various occasions. Usually, it is inevitable to apply the zooming algorithm to the video image so as to fit the physical resolution of the LED display. According to the problems that traditional interpolation zooming algorithm used in LED leads to the blurring edge of the image, an adaptive Newton interpolation algorithm is presented in this paper. Through adaptive judgment of the relevance between pixels before interpolation, the high-frequency information can be better reserved and the blurring edge of the image can be effectively eliminated. Meanwhile, the realization of LED display system based on FPGA is designed. The system shows satisfying display effect.