超细电子内镜图像插值与色彩校正FPGA算法设计与实现

Design and Implementation of Image Interpolation and Color Correction for Ultra-thin Electronic Endoscope on FPGA

针对目前超细电子内镜成像像素数有限和色彩失真等问题,该文研究开发基于双线性插值原理的FPGA图像插值算法和基于多项式回归原理的FPGA色彩校正算法。仿真测试实验结果表明,该文提出的算法实现了1280×720@60 Hz高清视频实时显示,同时以爱色丽色卡为标准,平均色差较校正前下降了约30%。

This paper proposed an image interpolation algorithm based on bilinear interpolation and a color correction algorithm based on polynomial regression on FPGA, which focused on the limited number of imaging pixels and color distortion of the ultra-thin electronic endoscope. Simulation experiment results showed that the proposed algorithm realized the real-time display of 1280×720@60Hz HD video, and using the X-rite color checker as standard colors, the average color difference was reduced about 30% comparing with that before color correction.