Survey Research on Time Synchronization of Multiple Video Cameras

Abstract

Recently, in order to view TV lives and appreciate sports watching or analyze video images for those sports videos taken by multiple video cameras, a technique interlocking multiple cameras using wired or wireless and taking videos with a time synchronization has been developed. However, the existing method has a problem that the cost of special device introduction is large. On the other hand, there is a method using an inexpensive device such as a smartphone has also been proposed. However, according to the different processing speed depending on performances of varies terminals, there will be a time lag occurs in the videos captured by different terminals Also there is a problem that the video cameras usually used in sports have not the information communication function to synchronize time. Therefore, in this research, we try to clarify the problem in time synchronization of multiple videos taken by different cameras usually used and consider the synchronization technique using image information projected in videos taken by those cameras.