- Posts: 5
- Joined: Wed Nov 29, 2023 3:42 pm
- Real Name: JEFF SUMMERS
Hi
Most of this is rocket science to me but i am learning. I built a swim analysis tool using Barlus underwater cameras (IP cameras 24 fps but the light sensitivity does not seem very high as a manual shutter speed of 1/100 is almost black). When the video is play back at slow speed there is lots of motion blur. The cameras are hooked up to batteries and each had a wifi extender connected to it--and I have managed to splash proof everything and get the cameras and wifi all connected to the router and the computer. The camera feeds are real-time and recorded by Blue-IRIS software. Blue iris will only capture up to 30 fps. It allows one to play back all the camera angles simultaneously and time synchronized on one monitors. So 4 channel playback in slow-mo. The combined synchronized 4 angle video shows up on the time line so you can capture/record for 60 seconds and then immediately play it back for the swimmer to see--even I can do it-so multiple coaches could likely do this. The idea was plug and play and simple.
Problems---camera fps limitation and shutter speed limitation. I have been trying to explore camera options---Barlus has a 100 fps camera --just 4 times the price---go pros might work at 60 fps--there's the underwater issue of wifi signals from the camera (not insurmountable but problematic) or you could use the HDMI out from the go pro to a HDMI transmitter receiver then to capture card and then into the computer. All these things are possible---I have no doubt with enough money I can get the video signal to the computer.
QUESTIONS NEEDS WISHES:
1) the most inexpensive way to get wireless swim video in real-time to the computer that combines a high enough frame rate and shutter speed to allow for non-blurry slow motion. My current thoughts are either the go-pro HDMI transmitter receiver capture card approach or the barlus 100 fps IP camera via wifi.
The above I can figure out with time. BUT the following is out of my league.
2) once i get the video to the computer --I need software that can be set up that easily allows for simultaneous playback in slow-motion of 4 (maybe 8 someday) channels. What would also be great is if you could move one view into a larger presentation format to look at it more carefully and then swipe in another view from the 4 (or 8 ) views on the monitor.
I know there is OBS and Vmix and all these mixer switcher toys but I don't know if what I envision can be done these gadgets and if it could be plug and play and not require a Ph.D in video processing.
think Real-time 60 seconds of swim--on the screen immediately after--discuss technique---view angles and videos (not having to find each video and bring it up etc.. ) Then do it again and write over what was just recorded. Something your 6 year old could do---wait no no---something you 70 yr old grandmother could do
Most of this is rocket science to me but i am learning. I built a swim analysis tool using Barlus underwater cameras (IP cameras 24 fps but the light sensitivity does not seem very high as a manual shutter speed of 1/100 is almost black). When the video is play back at slow speed there is lots of motion blur. The cameras are hooked up to batteries and each had a wifi extender connected to it--and I have managed to splash proof everything and get the cameras and wifi all connected to the router and the computer. The camera feeds are real-time and recorded by Blue-IRIS software. Blue iris will only capture up to 30 fps. It allows one to play back all the camera angles simultaneously and time synchronized on one monitors. So 4 channel playback in slow-mo. The combined synchronized 4 angle video shows up on the time line so you can capture/record for 60 seconds and then immediately play it back for the swimmer to see--even I can do it-so multiple coaches could likely do this. The idea was plug and play and simple.
Problems---camera fps limitation and shutter speed limitation. I have been trying to explore camera options---Barlus has a 100 fps camera --just 4 times the price---go pros might work at 60 fps--there's the underwater issue of wifi signals from the camera (not insurmountable but problematic) or you could use the HDMI out from the go pro to a HDMI transmitter receiver then to capture card and then into the computer. All these things are possible---I have no doubt with enough money I can get the video signal to the computer.
QUESTIONS NEEDS WISHES:
1) the most inexpensive way to get wireless swim video in real-time to the computer that combines a high enough frame rate and shutter speed to allow for non-blurry slow motion. My current thoughts are either the go-pro HDMI transmitter receiver capture card approach or the barlus 100 fps IP camera via wifi.
The above I can figure out with time. BUT the following is out of my league.
2) once i get the video to the computer --I need software that can be set up that easily allows for simultaneous playback in slow-motion of 4 (maybe 8 someday) channels. What would also be great is if you could move one view into a larger presentation format to look at it more carefully and then swipe in another view from the 4 (or 8 ) views on the monitor.
I know there is OBS and Vmix and all these mixer switcher toys but I don't know if what I envision can be done these gadgets and if it could be plug and play and not require a Ph.D in video processing.
think Real-time 60 seconds of swim--on the screen immediately after--discuss technique---view angles and videos (not having to find each video and bring it up etc.. ) Then do it again and write over what was just recorded. Something your 6 year old could do---wait no no---something you 70 yr old grandmother could do