Saved images has sometimes a line.

[hojunson]

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Required Info
Camera Model	{ D400 }
Firmware Version	(05.12.01.00)
Operating System & Version	{ Linux (Ubuntu 14/16/17)
Kernel Version (Linux Only)	(e.g. 4.14.13)
Platform	PNVIDIA Jetson
SDK Version
Language	{C }
Segment	{Robot}

Issue Description

<Describe your issue / question / feature request / etc..>

Here is an example image.
I am confused why the line in the image was happened.
I am using a Jetson nano and saving data streaming into a .bag file.

I cannot see the line in the Laptop. It might be Jetson problem or anything I can do?

Thanks.

[MartyG-RealSense]

It does not look like it is just a line across the screen, as the top section of the image above the line does not match up with the rest of the image beneath and has different color shading in places.

It appears as though the RGB is "buffering", like when an internet video stutters or a television has a bad signal reception. It looks as though the top of the image is a second ahead of the rest of the image, like a video of someone walking down a corridor where the top of the video is showing the position in the corridor that the person is currently at and the rest of the picture shows where they were at a second ago before they reached their current position.

If the image is okay on the laptop then it is probably not the florescent ceiling strip lights affecting the image and it is instead a consequence of recording to a bag with the Nano's lesser hardware capabilities. You could try reducing the resolution and / or the FPS speed to put less processing demands on the Nano.

If the stream is buffering, a way to improve performance may be to change the frame queue size value.

https://github.com/IntelRealSense/librealsense/wiki/Frame-Buffering-Management-in-RealSense-SDK-2.0#latency-vs-performance

[hojunson]

Thanks. Updating SDK and reducing resolution was helpful. 2020년 3월 6일 (금) 오후 4:23, MartyG-RealSense <notifications@github.com>님이 작성:

…

It does it look like it is just a line across the screen, as the top section of the image above the line does not align with the rest of the image beneath and has different color shading in places. It appears as though the RGB is "buffering" , like when an internet video stutters or a television has a bad signal reception. It looks as though the top of the image is a second ahead of the rest of the image, like a video of someone walking down a corridor where the top of the video is showing the position in the corridor that the person is currently at and the rest of the picture shows where they were at a second ago before they reached their current position. If the image is okay on the laptop then it is probably not the florescent ceiling strip lights affecting the image and it is instead a consequence of recording to a bag with the Nano's lesser hardware capabilities. You could try reducing the resolution and / or the FPS speed to put less processing demands on the Nano. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5986?email_source=notifications&email_token=AFY4LCM53ZXX72TJVT24ASLRGFSUTA5CNFSM4LDDAYDKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEOC4YPA#issuecomment-595971132>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFY4LCIXBSBZCOF2ZKMVPK3RGFSUTANCNFSM4LDDAYDA> .

[MartyG-RealSense]

I'm glad the advice helped. Thanks for the update!

[MartyG-RealSense]

@hojunson Do you require further assistance or is it okay to close this case now, please? Thanks!

[hojunson]

No. Thanks

…

On Thu, Mar 12, 2020, 9:02 AM MartyG-RealSense ***@***.***> wrote: @hojunson <https://github.com/hojunson> Do you require further assistance or is it okay to close this case now, please? Thanks! — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#5986 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFY4LCOBRORJYCFIGYRG5ALRHDMO5ANCNFSM4LDDAYDA> .

[MartyG-RealSense]

Ok, thanks so much!