Synchronization Validation Tool
Validate whether hardware synchronization is working properly.
Synchronization Validation Tool, as its name implies, is a tool to validate the hardware synchronization of our Volumetric Capture system. Hardware synchronization means that every RGBD device in the system is capturing simultaneously, which is a vital requirement in multi-view capturing systems.
Synchronization Validation Tool works on the assumption that, if all cameras in a system are synchronized, the they ought to capture exactly the same thing. To this end we use a momentary but bright light source (a camera flash), expecting this light to appear simultaneously in all views. Furthermore, inspired by this work, we achieve bigger confidence of synchronization validation exploiting the rolling shutter technology, on which RealSense D415 is based and which is our main device for the time. A group of hardware synchronized frame, capture by a rolling shutter-based device looks like this.
Notice that the brightness discontinuity in all frames is at the same position. For further information on this topic please refer to this work.