摘要
为满足干涉式成像光谱仪实时光谱复原系统的设计要求,利用可见光相机输出的可见光图像来模拟干涉图,提出了一种基于FPGA芯片的BT.656数字视频解析方法。利用信号延迟的方法检测BT.656视频信号的行控制信号,并根据亮度信号与色差信号的4∶2∶2的特殊关系,通过采用不同时钟频率将信号有效分离并分别输出,实现了BT.656格式的数字视频解析。将解析后的YUV格式信号转换为RGB格式,再转为灰度图像,以灰度图像模拟干涉图数据,实现了以视频信号模拟干涉图信号。
In order to meet the design requirement of real-time spectrum recovery for interference imaging spectrometer,a method of BT.656 digital video analysis based on FPGA is studied through the use of visible light image of visible light camera to simulate the interferogram.The detection method of BT.656 video line control signal is to use signal delay and the special relationship of 4∶2∶2between luminance and chrominance signals.The signals are effectively separated and outputted respectively by using different clock frequency.BT.656 format digital video analysis is realized.Transforming parsed YUV format to RGB format and then generating gray image to simulate interferogram data,the interferogram signal is simulated by the video signal.
出处
《桂林电子科技大学学报》
2017年第4期288-292,共5页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(61265006
61627807)
广西物联网技术及产业化推进协同创新中心基金(WLW20060509)
