What is Genlock sync?
Genlock (generator locking) is a common technique where the video output of one source (or a specific reference signal from a signal generator) is used to synchronize other picture sources together. When video instruments are synchronized in this way, they are said to be generator-locked, or genlocked.
Is genlock still needed?
In the HD world genlock is still with us, but using a composite signal as a reference has largely been supplanted by tri-level, which emits pulses that clock both the frame rate and the line rate. Because it synchronizes frames, genlock can be used to keep multiple devices from drifting apart.
How does the camera sync with the esync?
The gated (while-recording) output signal from the eSync is frame-synchronous with the recorded mocap data. In the live mode, the cameras are continuously shuttering and capturing frames at a defined frame rate.
How can I use an external sync signal?
To use an external sync signal as the master sync source, set the sync input source to the corresponding input port where the master device is connected to. See the specifications for more details on each of the input ports. Once the input source is set, next step is to define an appropriate trigger event.
How to trigger a signal from a camera?
Connect the OV9281 camera module to the MIPI adapter board, and the adapter board on the Arducam USB3.0 Camera shield. Use the USB3.0 cable to connect the shield to the USB3.0 port on your Windows PC. The FSIN pin of the OV9281 camera is used to trigger the signal input.
How does sync offset work on Ethernet cameras?
To precisely align the input signal trigger with the exposure timing, an offset delay, in microseconds, of half of the frame period plus half of the camera exposure must be applied in the Sync Input → Sync Offset (us). The camera exposure is measured in microseconds on the Ethernet cameras. Applying sync offset for aligning exposure timing.
https://www.youtube.com/watch?v=cusxbkwyvQ4