Google on heating issues. Btw those phones are no more in service. Resting in its box since 4yrs now.Even when recording 1080p?
Google on heating issues. Btw those phones are no more in service. Resting in its box since 4yrs now.
That is too much theory. I never said these are competitive. EIS is the future of stabilization and It will eventually replace gimbals. OIS will remain for pictures but it stands no chance in front of EIS for videos. OIS mostly do not do anything significant to a mobile cam videos. It (IBIS in cams) can make some difference in a DLSR camera when the lens also has OIS because the space is more and a OIS system can be properly implemented. OIS system physically moves the lens in opposite directions to cancel the movements of the cam, but mobile cam has such a small space for the sensor/lens to move that it makes less difference for videos. EIS do not outperform OIS, EIS destroys OIS. This is the reason there is no OIS in action cams. Phones has it because the priority is images.OIS and EIS are not competing solutions. They work in series. If your device has both, then you will get the best output.
OIS moves a lens element to compensate for your camera's movement, to keep what the sensor sees constant. This will help both photos and videos, especially in low light. On phones you can't really see the effect on wide lens, since it's more noticeable on higher zoom/longer lens where the shakiness is amplified. Wildlife photographers shooting animals from far away will benefit from it when shooting handheld.
OIS also helps videos, without cropping in.
EIS crops in on whatever the sensor is seeing, and moves that frame around to make the video appear still. There's no reason to use this for photos - a single photo can't convey phone motion. You need a minimum of 2 photos to perceive any movement. If you want to keep an object centred in a photo, while the camera is shaking, for eg. on a boat, you can just take a photo and crop it later while maintaining max FOV.
The more EIS crops in on a video, the more stable the output can look.
EIS also needs a lot of CPU power to work, hence not seen on older/less powerful devices.
TLDR:
OIS: no crop, max FOV images/videos; can reduce blurring in low light photos/videos; hardware solution; can cancel up/down+left/right movement only
EIS: crops, lesser FOV image/videos; can't help in low light videos; software solution, needs CPU power; if implemented, can cancel out rotation as well
That said, given enough light and cropping headroom, EIS can outperfom OIS. Check out the GoPro's awesome EIS
Once again you have missed the whole point of my lecture: EIS is a software solution that works only in bright light. More importantly it can't use the full sensor to show a wider, better video as it cannot work without cropping in.EIS is the future of stabilization and It will eventually replace gimbals.
Action cams don't have OIS since they are subjected to conditions where the moving mechanical parts might get damaged. Only since the GoPro 6-7 did EIS become practical. If you look at footage from older GoPros/mobiles it was a stuttery mess.EIS do not outperform OIS, EIS destroys OIS. This is the reason there is no OIS in action cams.
Lol bro please test and then explain how OIS will help photos but not videos. If it has no effect in video, it will have no effect in photos either. You are right in that the small lens movements possible can only help so much. It can't help one but not the other.Phones has it because the priority is images.
Horizon lock is the marketing term for the EIS feature where you can rotate the camera 360° but the EIS compensates for it and recording won't rotate. It is meant to be used only with a Super wide angle addon lens so as to not lose too much FOV.Regarding go pro video, It is not go pro awesome EIS. It is called horizon lock and it is also available in DJI osmo action. It crops into the sensor too much so not always useful.
Then why are you quoting me? Kuch bhi ?You are just repeating what I said...
I don't need your lectures. I never asked for it.Once again you have missed the whole point of my lecture:
There is world beyond your go pro, cheapest gimbal and stuff which you read on internet. Have you ever used a gimbal for filmmaking? Do you know how tricky it is to keep the subject in frame? Try shooting a subject while circling around it and tell me what outperforms what.The cheapest gimbal will outperform the best EIS.
Well that's somewhat correct but Action cams do not have OIS because it is useless in a small space for videos. Adding OIS to a good EIS system is like asking Captain America to help Aquaman to lift that submarine. It makes no significant difference.Action cams don't have OIS since they are subjected to conditions where the moving mechanical parts might get damaged. Only since the GoPro 6-7 did EIS become practical. If you look at footage from older GoPros/mobiles it was a stuttery mess.
There is no lol here. Mobile OIS is primarily there to compensate for shaky hands while clicking pics. It is a must while taking low light pictures. It cannot make a huge difference in videos. Most manufacturers disable it while video recording and just uses gyroscopic data for EIS. Others do not even tune it properly for videos. Yes, it can be disabled. Don't quote me on this. It is so insignificant in most phones that instead of wasting processing power and battery on it, it is better just to use EIS. Disabled means not using its data. OIS is a mechanical system so one cannot stop the lens or sensor from moving.Lol bro please test and then explain how OIS will help photos but not videos. If it has no effect in video, it will have no effect in photos either. You are right in that the small lens movements possible can only help so much. It can't help one but not the other.
Stop teaching me what a steering wheel and gear lever is. I am driving for many years and I am using gyroscopic data to stabilize videos for a few years.And finally: GoPro records the rotation angles + G-forces telemetry in its videos. Using this data and a PC's added CPU power, you can get even smoother videos than the camera is able to produce.
Really ? Thanks but NO.OR you know you could have just used a gimbal and saved all this extra work.
I agree. There was a time I used to flex on iPhone + gimbel users using my budget 'Chinese' phone. Good quality EIS arrived late on iPhone even later than budget android phones. First Pixel which was a high end phone, set the benchmark for mobile photography and highly stable video. And it didn't have OIS.There is world beyond your go pro, cheapest gimbal and stuff which you read on internet. Have you ever used a gimbal for filmmaking? Do you know how tricky it is to keep the subject in frame? Try shooting a subject while circling around it and tell me what outperforms what.
A gimbal needs balancing, it is expensive, it is not weatherproof, it is heavy, it needs more storage space, it requires its own power source, it has a learning curve, sometimes it just ruins your shot which cannot come back, smaller gimbals are mostly without a quick release system and still it cannot do what EIS can. EIS can stabilize in any direction which a gimbal cannot. There are sensors bigger than your go pro and phones which have no significant impact on the video quality even if you crop. I am talking from a filmmaker's perspective that EIS is the future of stabilization.
Right now, gimbals are an important part of any filmmaking setup and no one uses EIS exclusively but EIS is the future.
I like to debunk your views point by pointThen why are you quoting me? Kuch bhi ?
Show me where I asked you to attend my lectures.I don't need your lectures. I never asked for it.
I haven't shared an opinion that I haven't learnt from first hand experience.There is world beyond your go pro, cheapest gimbal and stuff which you read on internet.
Oh hello Mr. Nolan. Didn't realize you were here with us. Thank you for sharing all your valuable insight in film-making.Have you ever used a gimbal for filmmaking? Do you know how tricky it is to keep the subject in frame?
Pan. Following. Mode. RTFM, you don't know everything. They have different modes depending on what kind of shot you intend to capture.Try shooting a subject while circling around it and tell me what outperforms what.
...and much bigger than your ego. There are pro film cameras without digital sensors where EIS isn't even an option.There are sensors bigger than your go pro
And with you repeating that statement over and over again you have proved yourself to be an internet reading know-it-all. Mechanical stabilization is the ONLY way to reduce smearing (motion blur due to camera shake in low light)There is no lol here. Mobile OIS is primarily there to compensate for shaky hands while clicking pics. It is a must while taking low light pictures. It cannot make a huge difference in videos.
Welcome to F1, where the steering wheel is a rectangle and the gear lever are paddle switches.Stop teaching me what a steering wheel and gear lever is. I am driving for many years and I am using gyroscopic data to stabilize videos for a few years.
The suggestion was for OP to use with their phone. You are free to do whatever you wish for your pro level film making.Really ? Thanks but NO.
Yeah EIS has certainly come a looong way. I was surprised to see how rock steady the Steady Video mode was on a mid range phone!...I used to flex on iPhone + gimbel users using my budget 'Chinese' phone
Me thinks It's a motion blur issue dominated by following two issues.Try to go through each video and decide if the capturing is smooth or there's a lag or blur issue.
Frame interpolation to generation artificial frame in between two given frames, but this has it's own issue known as artifacts.And how or which tool to use to fix the same.
I want all videos to be corrected for a smoother viewing exp. and not like motion sickness how they are currently captured!Me thinks It's a motion blur issue dominated by following two issues.
1. Caused by camera aperture being wide opened for long period of time to get enough light to capture a frame in low light. Things move while single frame is being captured. Causing blurry frames.
2. Even with good lighting and narrow camera aperture, opened only for small period to time, the frames of moving object still get slightly blur, higher the moving speed more the blur ( this effect doubles when the object is moving in one direction and the capturing device is moving in opposite direction), this blur helps our brain to glue the edge frames and perceive it as a constant motion, but some times due to low frames per second the perceived motion is still not smooth enough and looks choppy, in that case simply capturing at high frames per second will help making it appear more smooth.
But to capture at high frames per second you need even more light.
Frame interpolation to generation artificial frame in between two given frames, but this has it's own issue known as artifacts.
The stabilisation is indeed working on your phone. The sudden blurriness you see in a few frames is due to the camera being shaken.I want all videos to be corrected for a smoother viewing exp. and not like motion sickness how they are currently captured!
For frame interpolation you can try:Me thinks It's a motion blur issue dominated by following two issues.
1. Caused by camera aperture being wide opened for long period of time to get enough light to capture a frame in low light. Things move while single frame is being captured. Causing blurry frames.
2. Even with good lighting and narrow camera aperture, opened only for small period to time, the frames of moving object still get slightly blur, higher the moving speed more the blur ( this effect doubles when the object is moving in one direction and the capturing device is moving in opposite direction), this blur helps our brain to glue the edge frames and perceive it as a constant motion, but some times due to low frames per second the perceived motion is still not smooth enough and looks choppy, in that case simply capturing at high frames per second will help making it appear more smooth.
But to capture at high frames per second you need even more light.
Frame interpolation to generation artificial frame in between two given frames, but this has it's own issue known as artifacts.
I tried this tool but unsure how it works so hardly any difference in motion when I tried on 2 small videos. Plus the the conversion takes some time as well.For frame interpolation you can try:
Flowframes - Fast Video Interpolation for any GPU by N00MKRAD
Video interpolation for everyone. Up to 100x faster than DAIN, compatible with all recent AMD/Nvidia/Intel GPUs.nmkd.itch.io
if your video was recorded at 30 fps, it can generate 60-120 fps. Basically filling in-between the frames. And the model runs on GPU (preferably Nvidia), and processing the videos will take some time.I tried this tool but unsure how it works so hardly any difference in motion when I tried on 2 small videos. Plus the the conversion takes some time as well.
All videos recorded at stock 30fps. During conversion the multiplication output went to 300fps and off the two videos converted, one is a bit smoother at one patch while for the rest part of the video its remains same.if your video was recorded at 30 fps, it can generate 60-120 fps. Basically filling in-between the frames. And the model runs on GPU (preferably Nvidia), and processing the videos will take some time.
Ya I guess it depends on content. The models are generally trained on very huge datasets which represent real-world scenes. However, models can only generalise around the data they have been trained on. It is quite possible the content of your videos may not be something the model has seen before.All videos recorded at stock 30fps. During conversion the multiplication output went to 300fps and off the two videos converted, one is a bit smoother at one patch while for the rest part of the video its remains same.
The other video hardly has any impact moving from 30 to 300fps.
My video contents incl. 99% general environment scenarios like traffic, rains, generic envi. sorroundings, occasional shots taken from moving bike, car, trains etc.Ya I guess it depends on content. The models are generally trained on very huge datasets which represent real-world scenes. However, models can only generalise around the data they have been trained on. It is quite possible the content of your videos may not be something the model has seen before.