reference picture的用法和样例：
例句
- Compared with other image re-projection methods, this method needs only two reference images and is easy and quick to be implemented.
和其他基于图像的二次投影方法相比，这里仅需要两幅参考图像，且实现方法简单快速。 - The simulation results show that even if the transmitting image and the reference image are not resembled, a good result can be obtained by one iteration in the reference image.
实验结果表明，既使传输图像与参考图像在视觉上几乎没有相似性，仍然可以对参考图像进行一次迭代得到较好的结果。
