多路视频实时编码传输技术是多摄像机凝视型全景成像系统中的关键技术之一。设计了一种以DM368多媒体处理器为核心的六路视频实时H.264编码传输系统。作为针对多媒体领域的片上系统(SoC)DM368采用ARM9处理器加视频编码协处理器方案,用硬件编码器对视频编码可以减少系统资源的消耗,而ARM9中运行的嵌入式Linux系统可以灵活的控制网络通信、视频采集、硬核调度等任务,是一种开发周期短、性能优越的多路视频编码解决方案。经测试,本系统对六路PAL视频进行编码传输实时性强、画面质量高、满足多摄像机凝视型全景系统的需求。

In multi-camera stare panoramic system, the technology of multi-channel video coding and transmission is very important. A six-channel video coding and transmission system is designed. This video process system is based on TMS320DM368 (System on Chip). In this chip, there are a ARM9 and a video coprocessor. With this video coprocessor, TMS320DM368 has higher performance in video process. The multi tasks are completed by the embedded Linux operating system such as video capturing, video encoding and video transmission. The results show that the system of video coding and transmission has many advantages in complexity and performance and meets the requirements of multi-camera stare panoramic system.