Plz recommend compatible sync signal generator between RealSense D455 and other 3rd party cameras
Hi, I have read about the whitepaper(https://www.intel.com/content/dam/support/us/en/documents/emerging-technologies/intel-realsense-technology/RealSense_Multiple_Camera_WhitePaper.pdf), and we would like to connect between Intel RealSense cameras or between RealSense and other company's depth cameras.
1. Is it mandatory to use external sync generator for sync between RealSense and other companry's depth cameras? or RealSense can be a master device?
2. Also, we would like to ask you to recommend compatible external sync signal generators for RealSense. The whitepaper requires a 100 microsecond positive pulse at the nominal cemra frame rate, 33.33 ms for a 30Hz frame rate for example. How about these? (https://www.bhphotovideo.com/c/product/1569942-REG/atomos_atomxsyon1_us_ultrasync_one_with_usb_c.html), (https://www.bhphotovideo.com/c/product/1372226-REG/tentacle_sync_te2_sync_e_standard_set.html)
Thank you.
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Hi Jkhong9 Intel's External Synchronization white-paper is more recent than the multiple camera white paper and discusses the genlock sync feature for configuring trigger sequences for multiple cameras.
https://dev.intelrealsense.com/docs/external-synchronization-of-intel-realsense-depth-cameras
In regard to your questions:
1. You can generate a sync pulse with an external signal generator, or you can instead designate one of the RealSense cameras as a Master camera and set the other RealSense cameras as Slave cameras to follow the timing of the Master camera.
2. The External Synchronization paper suggests an Arduino Micro with a level-shifter as the signal generator.
You can select your own signal generator and level shifter parts though, such as the suggestions made by a RealSense user in the link below:
https://support.intelrealsense.com/hc/en-us/community/posts/360051490514/comments/1500000051921
Section 4.3 of the External Synchronization paper addresses the scenario of using RealSense with non-RealSense cameras instead of all-RealSense cameras:
"Probably the most common need for Genlock is when you need to synchronize multiple sources. For example, users may have a separate RGB camera that they want to be the master, and they want Intel RealSense cameras to exactly synchronize to its capture. This is often needed for applications like 3D scene reconstruction which may use a very high-resolution color camera and an Intel RealSense depth camera".
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