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Myzhar / Lepton3_Jetson

Library and examples to connect the FLIR Lepton3 thermal camera to Nvidia Jetson embedded boards
MIT License
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black video stream output in Lepton3 #3

Closed rahulsharma11 closed 3 years ago

rahulsharma11 commented 3 years ago

Hi, I am using Lepton3 with jetson nano with Jetpack4.3.

I was doing testing continuously with Radiomatric output. I found following results- 1) All of sudden Radiometric output video goes and complete black screen appears with no error. 2) When i switch to RGB mode then RGB video output is there with no issue. As i click "R" button to enable Radiometric output again then radiometric video out is there for 1/2 seconds and again whole thing gets black with no error. 3) When i do FFC with "f/F" button, then radiometric output video appears.

I have following doubts- 1) Is there effect of FFC in Radiometric output? 2) I am not sure with this term "Radiometric" as Lepton3 is being used not Lepton3.5 3) What if i do FFC on top every time when i start capturing Radiometric stream. Is there any problem?

Thanks.

Myzhar commented 3 years ago

FFC performs a calibration of the sensor. You cannot perform it for each frame... but it's good to perform it once a while. When you switch from RGB to thermal an FFC is required to get correct thermal images.

rahulsharma11 commented 3 years ago

Thanks