Developing a Sound-Based Method to Synchronize Multiple Videos Recorded by Multiple Sound Sources

The surround environmental monitoring from a vehicle on the road is important for the driving behavior analysis as well as the monitoring of driver's operations.A light weight mobile camera is useful for the record of multiple directions from the vehicle simultaneously.However, the timing synchronization is an important issue need to be solved.In this purpose, we proposed the sound-based method to synchronize different videos recorded with environmental sounds.In this task, the extraction of common sound features and amplifying of the features are necessary to superimpose those sound profiles to find consisting time points.In the validation the effectiveness, we used recoded videos from the bus driven by an expert driver.