SJ5000 Lens disortion and continous shooting and some other questions

fjunk

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Hello,

I bought a SJCAM 5000 Wifi. Firmware version is G20150302V01.

I played with this camera for one week. I have got some questions (and partial answers). I would like to share it so that, by chance, some people may provide answers/feedbacks.
  • Lens distortion correction
The wide angle generates image distortion. Go pro comes with a tool suite to correct the distortion. Alternative tools exist using open source tools. They basically rely on the lens distortion effect.
For example:
https://gist.github.com/KonradIT/ee685aee15ba1c3c44b4

I did some tests using mogrify
mogrify -distort barrel "0 0 -0.3" *.JPG
and the kdenlive video tool suite using the parameters for "Lens Correction"
Horizontal/Vertical Center=500
Center Correction:265
Edges:530
Brightness: 500
results are there
https://www.dropbox.com/sh/talp7h69b5h8zwh/AAC-2LCxIYHxtxlmiNch9DqCa?dl=0

Results are not so bad. But I guess that they are not optimal. Does anyone has better value? I also tried to determine the values using hugin but results are not better:
http://hugin.sourceforge.net/tutorials/calibration/en.shtml
  • Wifi control
I would like to control my camera using a pc. I found some http commands to do so.
http://www.rcgroups.com/forums/showthread.php?t=2090990&page=211
It basically works...

The values are given for SJ4000. I started to dump some traffic to better understand how to command to take a picture. Maybe someone has already found out the commands to send for the SJ5000?
  • Continous shooting
It seems that the camera has the possibility to perform continous shooting.
http://www.sjcam.com/download/SJCAM_SJ5000_WIFI_Manual.zip (page 10)
I am not able to find this mode on my camera...
  • Change buttons actions
The white balance selection has a deep impact on the image. The choice of the value is cumbersome. It could be really nice if this selection could be done using side menus. For example:
- button wifi (on/off)
- middle button (zoom factor: 1, 2, 3)
- lower button (image mode:auto, d/l, tungsten...)

I guest that this kind of change could be done on the firmware setting. I guess that should be configuration setting to select the command for each of the button.

It is only assumption. I never disassembled the firmware... does anyone know how to do it?

Regards
 
OP
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fjunk

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minor update. It is also written that the sjcam 5000 wifi has an anti-shake capacity. I am not able to find this option in the menu. Does someone know if this is true?
 

jokiin

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Dash Cam
Too many ¯\_(ツ)_/¯
minor update. It is also written that the sjcam 5000 wifi has an anti-shake capacity. I am not able to find this option in the menu. Does someone know if this is true?
it can be a useful feature for a sport camera but it softens the picture, for car dashcam use it will give a superior result without it
 
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