基于PTP协议的航空图像高速传输

为了减少传输图像数据量,提高图像传输的速度,实现对航空图像的高速传输,研究一种高速、可行的图像传输方法。基于PTP(Picture Transfer Protocol)协议,采用JPEG图像压缩算法对图像进行压缩,引进文件流的多线程传输模式,自主开发了航空数码相机图像传输系统。介绍了系统设计方案,验证了设计方案的可行性。测试结果显示,图像平均传输速率为53.641 Mb/s,误码率为0.00%,表明该系统能够很好地保证数据的原始性,防止数据丢失,有效地减少数据通道堵塞,实现了图像数据的高速、高质量传输。

High-speed transmission of aerial images based on PTP protocol

In order to reduce the mount of image data, enhance the speed of image transmission and to realize the high-speed transmission of aerial images, a high-speed and feasible method for image transmission was researched. On the basis of the Picture Transfer Protocol(PTP), an image transmission system of aerial digital camera was presented by using the JPEG image compression algorithm and the multi-threaded transfer mode of file stream. The design scheme of the system was introduced and its feasibility was proved. Experiment results demonstrate that the image average transfer rate is 53.641 Mb/s and error rate is 0.00%, which shows that this system not only guarantees a good data primitiveness and prevents data loss, but also reduces the data path blockage effectively.