Keywords
teleoperation
road vehicles
data reduction
video streaming
road vehicles
data reduction
video streaming
Abstract
This paper presents three approaches to reduce the data rate required for video image transmission of teleoperated road vehicles and compares their efficacy to that of an ordinary H.264/AVC video compression. In addition, the paper suggests a setup of the open source H.264/AVC encoder x264 that provides a robust video stream with minimized encoding latency. While the two investigated edge detection algorithms, Canny-Algorithm and Laplace-Algorithm, tends to increase data rate, the Foveated-Imaging-Technique can reduce data rate for less important parts of the image. All investigated algorithms, including video compression, run in real-time since their computation time for one frame is less than forty milliseconds.