[Knowledge Request] Last week I filmed my whole juggling practice with the intention of watching the footage later and updating my record log. Now it's come to actually watching the video I can't be bothered to find my best runs among all the footage.
My current method is that when I think I've had a good run I stop and restart the camera. Then when I get back I just need to watch the last part of each clip. (I forgot to do this last week so would have to speed through all of it).
Is there a good way to mark on the recording when your best runs were? How do you measure your best runs?
P.S I can't count as I juggle.
Oscar Lindberg - - Parent #
I mostly do like you - stop the video. But if I not do that I'll turn on fast forward and listen to the sound of the catche as I do something else. But I haven't filmed for more than maybe 25 mins though... And it's probably not the best method :P, but it works for me.
Little Paul - - Parent #
Why not keep a notebook on the floor by the camera and just note down the time you start your practice and then when you have a "good" run, just jot down the time the run finished.
Then it should be a simple matter to find any given run.
Oscar Lindberg - - Parent #
Ahhh, I'm going to try that!
You can give handsigns to yourself for later when you watch. When scrolling through the video, you just look out for the sign.
Daniel Simu - - Parent #
Scream really loud, then later analyse the audio track for spikes!
That's actually quite possibly the most practical idea. Caveats obviously apply.
There's a feature for a media player I used to use called Moodbar, where it would sample an audio track into 1024 samples, and then assign R,G,B values based on low,mid,high frequencies respectively for each time sequence. So white meant loud across a wide spectrum. Blue could be a flute solo, etc. For both classical and popular music, this did a remarkable job of making seeking to a particular section of a track much easier.
This has been around a while I think. A few years ago I read about traffic cameras that recorded a block of video on a rolling basis. The block of video would only be saved permanently when the camera picked up the sound of screeching tyres or a collision.
Turns out Google are offering something similar for home surveillance called Nest Cam (which previously was much more appropriately named "Drop Cam"). It can link up to an optional cloud recording service which records everything continuously & saves it to a remote server. You can configure the software to place markers on a timeline when the camera detects motion or sound that is outside the normal background noise. So you could set the camera to listen for you shouting. Then go to your computer, log in to your account & review the clips around the markers. Sounds very bandwidth intensive to me but interesting all the same.
So who is going to be the first convention to have one of these set up in the main juggling hall?
Alan and Sadie do erratic dancing when they get a good run, then watch through the footage really fast later on. The dancing also makes for good outtakes.
https://youtu.be/OFlYfCEeYPA
lukeburrage - - Parent #
Okay, here's how to do it. Every time you get a good run, or a trick you want to keep, go and stop the camera, but hold your hand in front of the lens so you see your thumb up, indicating there is something good just before it.
Now, here's the real tip. When you begin recording again, hold your hand in front pointing to the left, as seen by the camera, or pointing up. This means that when you copy all the videos onto your laptop, you'll get loads of files showing thumbnails images. Those images are often the first frame of the video.
So when you look at the column of video file thumbnails, your finger will be pointing at the previous video, telling you to check the end of that previous video. The thumbs up at the end of that previous video is a sign that you're heading in the right direction, then skim back 30 seconds, and you'll be in the right place.
This is, objectively, the best way to communicate with your future self.
I've made up more simple sign language for myself too. If I get a good trick, but then try again a few more times, then decide to stop but don't want the last trick in the video, I don't hold my thumb up. I hold up three or four fingers, to tell myself to rewind back through three or four attempts to get to the trick I want. A shaky hand means check the trick, but it might not be clean or useful. That kind of thing.
noslowerdna - - Parent #
Good recommendations, I do something very similar to manage my video clips.
Default is keep the last run so I just stop the camera with no thumbs up. Will point to the left at the end if the best run is somewhere in the middle but I was greedy trying for an even better one that didn't happen. A big X with my forearms at the end if the clip is trash containing nothing worth saving. If I later change my mind about an X'd clip, will wave my arms frantically at the end of some future clip and explain aloud which one to rescue.
Stephen Meschke - - Parent #
I am writing a program that uses computer vision and machine learning to count the number of catches per run.
I am currently working on a Small talk post about it. Does anyone have questions? Does anyone have anything to contribute?
Here is a screenshot of writing and testing the code:
https://drive.google.com/file/d/0B7QqDexrxSfwd1VFdGE5SjctYWc/view?usp=sharing
Here is a link to the video that I am using for testing:
https://youtu.be/IjfXrr5K61c
Subscribe to this forum via RSS
1 article per branch
1 article per post