【摘要】 回顾了机车仿真器视景系统的发展过程，介绍了基于ＯｐｅｎＧＬ的机车视景仿真系统；针对机车仿真器视景系统的特点，提出了利用视频压缩技术进行视景仿真。详细介绍了基于ＭＰＥＧ－１ 标准的系统实现方案，包括压缩／解码、平滑调速、低速时帧间插值等更多还原

【Abstract】 The history of the visual system of locomotive simulator is introduced. The visual system based on OpenGL is discussed. The distinguishing features of this system are analyzed, and video compression is approached. The program based on MPEG 1 is discussed in detail, including compression/decompression, changing playback speed smoothly, interpolation between frames in situation of low speed.更多还原