Questions tagged [motion-detection]
The motion-detection tag has no usage guidance.
19
questions
2
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2
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How to extrack motion vector data without decoding the whole video
I want to extract the motion vector from the encoded h264 stream without performing a full decode of the frame.
I'm using the FFmpeg library and am aware of extracting the information using the ...
- 123
1
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0
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232
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How can I use "mestimate" for detection of a new object from a live video feed?
I read that I can use motion vectors to detect new objects in a scene as a form of motion detection.
FFMPEG doesn't have motion detection implementation but I can use "mestimate" which uses ...
- 59
1
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0
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524
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How to get motion detection on FFMPEG?
I am using FFMPEG as a surveillance CCTV system, working really well for me.
Now how can I get some form of motion detection where FFMPEG will take a pic and save it to a folder?
Would I need to use ...
- 59
3
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0
answers
399
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ffmpeg remove parts without motion and cut the video
I am an Artist and I do very long drawing timelapses. I want to collapse my timelapses and cut everywhere where I don't move.
I want to shrink a 5 hour video to a few minutes video without speeding up ...
- 31
1
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0
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268
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How to find the Position of Objects detected in a video on YOLO? [closed]
Hi First of all I'm a real noob to coding and all. I found this YOLO and wanted to do something with it.
After downloading YOLO and running it by typing
./darknet detector demo cfg/coco.data cfg/...
- 11
2
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1
answer
2k
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reducing noise in scene select logic in ffmpeg
From this answer I am using this command to extract only components of a (mostly unchanging) video feed which have motion in them:
ffmpeg -i input.mp4 -vf "select=gt(scene\,0.0001),setpts=N/(25*TB)" ...
- 2,784
2
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0
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459
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FFMPEG motion compensation and search
I'm trying to modify the motion detection part of FFMPEG. What I want to do is to extend the search space, so that whenever the macroblock hits the rightmost edge of the frame, I need it to still move ...
- 539
25
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1
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18k
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ffmpeg remove parts without motion
I have an IP security camera (192.168.0.8) which able to broadcast rtsp content over network.
I'm able to save that (RAW) content without changes using next ffmpeg command from my computer:
ffmpeg -...
- 353
1
vote
2
answers
96
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Phone Direction Detection [closed]
I know that for a gyroscope, you can detect pitch, roll, and yaw, but how does a phone (or other machine) know what direction the phone is facing (north, east, south, west)?
- 123
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1
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How to start/stop motion on screen lock/unlock?
I installed motion in Fedora 17, and I want it to start when I lock the screen with control + alt + l, and stop when I unlock it.
I found this to run/stop a script on screen lock: https://unix....
- 2,817
2
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1
answer
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Macbook screen switch off when moved
When moving my macbook it sometimes switch off unexpectedly (black screen) and switch on again after several seconds.
I remember solving the problem several month ago by changing a internal MacOS X ...
- 1,321
6
votes
4
answers
15k
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How to run webcam software only when I am not home (phone is not on the LAN)?
Currently I've got my user cron starting Motion on a timer when I typically leave for work, and then killing it when I typically get home, so I can watch my cat/burglars/etc:
0 9 * * * killall motion ...
- 7,581
1
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0
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1k
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ZoneMinder: improve motion detection? [closed]
I started to use ZoneMinder but I'm getting lots of false alarms.
False alarm example: because of occasional noise in the image, it triggers alarm although nothing has really changed.
Delayed alarm ...
- 111
11
votes
2
answers
4k
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Extracting all the still images from a movie [closed]
I have a large number of paper sheets to scan. Instead of an autofeed or flatbed scanner, I'd like to use my photo camera. After a while, it occurred to me that instead of making a photo for each page,...
- 7,105
2
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1
answer
3k
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Logitech webcam motion detection, wake on motion possible?
My Logitech C270 appears to be capable of motion detection, but the only thing the software can do is record when motion is picked up.
If possible I would like my computer in sleep mode to wake up ...
- 5,778