|
|
|
|
|
|
|
How To Make Time Lapse Video - Video Frame Rate Method
The #16 now has two functions that can be used to make time lapse videos, namely Time-Lapse Photos and Video Frame Rate. But how is it done? Here's the easiest way I've found when using the Video Frame Rate method with AviDemux v2.5.6, the free cross-platform editor that runs on Windows, Linux, and MAC computers.
Video Frame Rate method: This method simply records at your choice of a slower frame rate, and then you play it back at a faster rate to get the speed up. In addition to the normal 30 fps frame rate, v0.58 and higher firmware gives options for recording at 5, 10, 15, 20, and 25 fps. The video playback speed can be increased with many editing tools, but I'll just give details on doing it with the free editor, AviDemux, which can directly import the camera's native MOV or AVI files, and output the video at a different frame rate with no re-encoding of the video (i.e. no quality loss). I keep the playback rate at 30 fps to keep things simple. This will produce videos that playback with the following speed-ups: Recorded Frame Rate ... Speed-up (at 30 fps playback) 5 fps* .................................... 6x* 10 fps .................................... 3x 15 fps .................................... 2x 20 fps .................................. 1.5x 25 fps .................................. 1.2x *NOTE: The 5 fps frame rate has inherent unusual recording and playback properties which causes the audio and video tracks to both play back at 30 fps, which results in the video being accelerated by a factor of 6. The result is the accelerated video is finished long before the audio track, giving the impression some video was lost. In reality, the entire video portion is there during playback, but it is drastically out of sync with the audio. This is a bug with only the 5fps setting, and a fix for it has not yet been identified. The other frame rate settings will play the video in sync with the audio, but the motion will also move in "jump steps" due to the slower frame rate. A work around is to strip the audio off the 5 fps native video, and the playback will stop when the video is finished. The process is pretty simple:
|
|
|
|
|
||
|
|
Quote:
|
|
|
|
|
|
|
CMOS sensor thread same size as #11?
I search up and down but can't seem to find what I need. My #11 is getting tired and I'm getting a #16 v2 with Lens D. I'm wondering if the CMOS sensor thread is the same size as the #11 so that I can unscrew my #11 Lens B element (NOT the entire module) and screw onto the #16 (assuming I can break the glue on the #16 lens module without damage)?
|
|
|
|
|
|||
|
United States, CA, Oroville
Joined Sep 2007
79 Posts
|
Filmed entirely using four 808 #16 cameras
|
||
|
|||
|
|
|||
|
|
Testing the camera in the MicroQuad this weekend.
It performs really well, and be able to set 4:3 in the AV-OUT is very good as it fills completely the goggles image. It also behaved very well in low light |
||
|
|||
|
|
||
|
|
Quote:
|
|
|
||
|
|
||
|
|
Quote:
|
|
|
||
|
|
||
|
United States, IN, Indianapolis
Joined Oct 2012
298 Posts
|
Quote:
|
|
|
||
|
|
||
|
|
Quote:
How did you record the FPV video? /Jan |
|
|
||
|
|
|
|
|
@jhi, It was the camera itself recording.
I'm feeding it 5v from the Flight Controller just to make sure it doesn't power-off during flight. Image is not at it's best because it was overcasted and dark. (at 15:30 sun is gone.. )The GoPro HD1 doesn't perform much different from that, I actually made one PFV flight after this one with the GoPro and I can post it here for comparison. @quitcherbitchen, check here: http://www.rcgroups.com/forums/showthread.php?t=1717836 Detailed construction and all gear listed. But don't use my video gear as example as I just wanted to re-use some old TX/RX I had. Range is pretty limited so my next step is to change to 100mW 5.8Ghz. |
|
|
|
|
||
|
|
Quote:
I was thinking yesterday as to if anyone had done that... I can imagine running around turning all the little dears on before flight... ![]() Certainly is a practical way to use these things. |
|
|
||
|
|
|
|
United States, CA, Oroville
Joined Sep 2007
79 Posts
|
Mounted with nothing but package tape
.. Notice on the wingtip, you will see the cam with the external power supply about 6" behind it. I just tape the living snot out of them as I don't want to have them fly off an injure someone.. The rear stab also had external pack.. The two on the canopy and in front of the cockpit facing out had no external and also just taped on.. The whole flight was 31 minutes.. Mounting GoPro's out there require much paperwork and sign offs.. These the a&p saw my attachment job and gave us the go ahead.. I went up a few weeks ago to get ideas and figure what to highlight for the folks that run that gig.. This time I was on the ground and I turned on the cameras after the run up and right before flight. You will see one above the front passenger's head.. And one ahead of the windshield |
|
| Thread Tools | |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Discussion The REAL (#11) HD Key Cam Thread (PLEASE! READ POSTS #1-#3 BEFORE POSTING QUESTIONS!) | Tom Frank | Aerial Photography | 9838 | Today 08:20 AM |
| Discussion Looking to buy #11 HD Key Cam within US | Abolfazl | Aerial Photography | 1 | Feb 14, 2012 01:59 AM |
| Poll Poll For Current and Future #11 HD Key Cam Users | Tom Frank | Aerial Photography | 0 | Sep 25, 2011 11:55 PM |
| Discussion New HD Key Cam CHAMP? 1080x720p 3 HOUR RECORD TIME! | Jaybee | Aerial Photography | 4 | Jun 02, 2011 11:39 AM |