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Low Latency Camera Feed Development
2023 WINLAB Summer Internship
Project members: Brayden Casaren, Sebastian Clarke, Ayush Iyer, Rohit Kartickeyan
Advisors: Ivan Seskar and Jennifer Shane
Project Goal
To find the method(s) of reducing latency to a minimum in a unicast camera to computer connection over a network.
Project Design
Our camera and LED light is sealed in a box with minimal light. The camera is continuously recording to capture the LED light turning on and off.
The Time Machine is equipped with a GPS and uses PPS (Pulse Per Second) and PTP (Precision Time Protocol). PPS sends a precise voltage that turns the LED light on at the start of every second.
As the camera streams footage to our computer, we can save the incoming video packets through a software called TCPDUMP. These packets contain the data for the captured camera video. When the LED light turns on, the data inside the transmitting video packets will change, indicating that light is now being captured.
The GPS in the device gives a standard source of time. PTP uses this time to timestamp packets with the time the computer receives them, and to sync all the local clocks on our computer network to the GPS standard time.
Weeks 7-8
During these two weeks, we decided to create a histogram to visualize how noise affects packets. Using the Python library Matplotlib, we created…
- Visualizing Data Through Histograms (Matplotlib).
- Uploaded individual frames of the artificial video to the node.
- Made little to no noise.
- Changed LED setup to take up more of the camera’s view.
- Using FFMPEG to get video into one MJPEG or many JPEG files.
Week 7 presentation: https://docs.google.com/presentation/d/1oPe0z3FzBUPzzFf-zcCJgz43jQIHqMHRg1BsnYJdaCU/edit
Week 8 presentation: https://docs.google.com/presentation/d/1qZLdapSWYrYTItAQqAmdhgF34x_hxIMOjZ_adv8LDIg/edit
Week 9
Week 9 presentation: https://docs.google.com/presentation/d/1p3A7ZTJOdkUAqZujGuvOyyJHKzd3qgGuxxUHSaZVm9k/edit#slide=id.p
Week 10
Week 10 presentation: https://docs.google.com/presentation/d/1si5gw012hevYePNOeTQiqYPRlw_s4Ao4pM_46wUkApk/edit#slide=id.p
Weekly Progress Reports
Week 1
https://docs.google.com/presentation/d/1WgLttl-gL1IPvtBatBWwfke9rf4txnYGf04_Hy7mANE/edit#slide=id.p
Week 2
https://docs.google.com/presentation/d/1rk4QhjhJOKQ2Q0PooV-JtUru1SGpYBeEUab7y3EtSyQ/edit#slide=id.p
Week 3
https://docs.google.com/presentation/d/1PPJB0SCb0Y8G04pPQRvMS-2uoILxmxJBSVdZgO7B73c/edit#slide=id.p
Week 5
https://docs.google.com/presentation/d/1eFaGVwyJf6AOELmQVRvLJxMywu_rgNEc2hIgDxk3BDA/edit#slide=id.p
Week 6
https://docs.google.com/presentation/d/1IwPrkkpvbTHO3LuBZ2Umuxp5rz9jwKTqmml3EoJ7wAA/edit
