Design of Multi-channel Video Zoom Based on Bilinear Interpolation Algorithm
Chen Quan-bin · Video Engineering · 2015
A multi-channel video zoom device,which bases on bilinear interpolation algorithm and FPGA hardware platform,is designed in this paper. The two lines pixels,which are next to the desired position,are stored in the RAM. The vertical interpolation data are calculated firstly. Then,the horizontal interpolation data are calculated. The image can be scaled in real time by using this device,which takes advantage of FPGA's parallel computation ability.