几篇用于单目测距的视觉图像定位研究文献，较新也很经典-Monocular distance for several visual image positioning research literature, is also relatively new classic

该工程可实现弹幕的基本效果，比较适合初学者，代码简单，易于理解。(The project can achieve the basic effect of barrage, more suitable for beginners, simple code, easy to understand.)