|Feb 06, 2010, 12:44 AM|
Fat Shark FS-HD1 Camera
I figured it'd be better to start a new thread so the reference information could be all on the 1st page and I can control the updates:
You can the product specifications and download unedited raw onboard footage here:
Key features are:
- 37g (including IRC plug/play cable, 24g without)
- Dimensions: 30mm X 90mm (DVR board only, not include lens).
- 720p, 60fps
- MicroSD tested to 16Gb (theoretically can handle 32Gb)
- High quality CMOS imager and Media chip (Texas Instuments)
- Stable Linux operating system
- 4.6mm interchangeable lens
- 90 degree FOV (diagonal) HD image, 70 degree FOV analog out
- No automatic power shutdown
- Low power (300mA @ 5V)
- Downloadable upgrades
The camera currently records at 6Mbit/s and outputs NTSC analog out. I will be releasing a downloadable upgrade that will allow the data rate to be selectable (up to 12Mbit/s) and NTSC/PAL AV out selectable. The 6Mbit/s data rate was chosen as current default because I personally don't see any image improvement at the higher rates, but the file sizes become unmanageable.
The original intention was to have the camera head connected by a longer ribbon cable for use with a pan tilt. Unfortunately I did not anticipate the amount of RF interferrence that this generates and thus could not be released as such. This is too bad because I actually opened up a really neat pan and tilt tooling that had a rubber friction clutch to save the tilt servo on impacts (see photo). I am still working on RF suppression and if can be acheived, will release a pan/tilt version (but no way to say right now if it will be possible).
|Feb 06, 2010, 02:04 AM|
A shielded and grounded tail does help, but not to the levels that I would consider safe for putting on an RC plane. Trust me, lots of effort has gone into a solution. I would've released the camera a long time ago if was easily solved.
How are you certain that the shielding of the Aiptek cable eliminated all the RF? How did you measure it?
|Feb 06, 2010, 03:35 AM|
As he states above, there's a copy of a raw file (whole flight) on the web page linked above.
It's very large, and not a super fast pipe so it'll take quite a while to download.
The raw file looks very good and there's lots of detail. It's just really bumpy due to
the wind. That plane seems to waggle side to side quite a bit too. I've been feeding
the raw file to Virtualdub, and seeing what DeShaker can do with it, and so forth. On
my new 3.0Ghz Core i7 920, it's still pretty slow re-rendering HD files this big.
Some may find that any HD resolution files will thrash their box when trying to do
video editing. My old Pentium D DualCore box won't touch it.
|Feb 06, 2010, 10:19 AM|
i downloaded the raw file,
it got a FourCC called "FMP4" (what a strange fourCC...)
Complete name : D:\2010-1-17-_full.aviVideo
Format : MPEG-4 VisualAudio
Format : ADPCM
Some frames got a lack of gradient, they are pixelated, but just in some light transitions,
the video still looks washed out in colors, i would like to see two videos recording same footage, one video recorded with FSHD1 and another one recorded with a digital camera.
|Feb 06, 2010, 10:39 AM|
Joined Aug 2009
it looks like to me the software running are GPL modified binaries which should then be redistributed as source with modifications if that would be the case.
Can you clear this one up?
|Feb 06, 2010, 02:08 PM|
|Feb 06, 2010, 05:46 PM|
Daemon between 4:25 and 4:30 there are some kind of glitchs, did you see it?
i wonder how good the image would be with MJPEG codec,
grass and trees are blurry in fact, i am sure camera catch much more details that what they are shown in the video due to video compression artifacts,
i find MJPEG is one of the best video codecs (fact aside is the big files this codec generates)
for example... did you ever see a video with such details ?
what about a firmware wich record in MJPEG ? or some kind of update utility to select the codec and resolution of the recording video?
|Feb 06, 2010, 06:21 PM|
I also have the entire movie, and it plays perfect on my MacBook Pro!
What I really like about this bit of kit - Even if you don't always want to fly FPV, you can use it as a stand alone High Def DVR. Because all the recording is done onboard - you can leave your FPV gear at home, and still get HD video.
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