reference picture的用法和樣例：
例句
- Compared with other image re-projection methods, this method needs only two reference images and is easy and quick to be implemented.
和其他基於圖像的二次投影方法相比，這裡僅需要兩幅參考圖像，且實現方法簡單快速。 - 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.
實驗結果表明，既使傳輸圖像與參考圖像在視覺上幾乎沒有相似性，仍然可以對參考圖像進行一次迭代得到較好的結果。
