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HelicopterAerial Photography and Video › Video swimming
02-14-2011 08:19 PM  6 years agoPost 21
jprconstruction

rrApprentice

Nottingham,uk

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Hi s wave
Yes that a big difference,I'll keep going with the isolating.
One of my ealier questions was how come video looks good at home on my computer but crap when it's transferred to YouTube.
You say your camera was a go pro hero HD,and so is the camera in this video
http://www.youtube.com/watch?v=cRtk...e_gdata_player,
but look at the difference in quality,between yours and his
Regards john

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02-14-2011 08:25 PM  6 years agoPost 22
jprconstruction

rrApprentice

Nottingham,uk

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Video swimming

Hi s wave
Sorry I just realised that both videos are yours,why the big difference in quality between the two videos,if the camera is the same go pro hero
Regards
John

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02-14-2011 09:09 PM  6 years agoPost 23
SeismicCWave

rrVeteran

Hilo, Hawaii

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>>Sorry I just realised that both videos are yours,why the big difference in quality between the two videos,if the camera is the same go pro hero<<

LOL, yes both of the videos are mine. Two difference. The first one I linked you was captured on a very gloomy day. If you look at the ground it just finished raining and it was dark and over cast. I also didn't load the video up to YouTube as a high definition video.

If you look at the second video that you referred to was captured in a very bright and sunny day. I also used the 16:9 full HD format when I edit the video and load it up to YouTube.

You processing of the video has a lot to do with the quality of the video. Standard HD is 1280 X 720 and when you load it up to YouTube you will only get 480p as the highest resolution. Looking at your videos the highest resolution I can choose is 360p. So that meant you are not processing and loading the video to YouTube as an HD video.

I cannot get too technical between the 1080i interlaced and 1080p progressive video because I am still learning about those myself.

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02-14-2011 09:44 PM  6 years agoPost 24
lele

rrVeteran

italy

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Hi John,
that is good, I have seen your latest video, and I think you are on the right way to solve your problems.
We have all faced the same troubles you are having now, it is all a matter of fine tuning your system.
Suggestions from Seismic and GyroFreak are of great value, and will help you for sure.
You may also have a look at this link (it may also be interesting for others) it is a basic but interesting considerations on vibrations on remote controlled helicopters. The article is from Aerial Photo Asia and, as I said , I think it gives the good basis for further considerations:
http://www.articlesbase.com/gadgets...ia-3309707.html

Lele

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02-14-2011 11:36 PM  6 years agoPost 25
GyroFreak

rrProfessor

Orlando Florida​...28N 81W

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Here is a video taken with my Daughters camera on my mount. Notice the curved blade shadows. That is a standard artifact of Cmos type cameras.

Watch at YouTube

In a few mins I will also show a youtube on the same camera mount but a CCD type camera.
This won't solve your problem but will give you a little insight how they differ on the same helicopter with no chages except type of video camera.
Be back shortly with the other video.
EDIT:
Well here is the same setup but with a CCD camera. (Canon Powershot A1100IS low cost)
Also notice the blade shadows do not curve.

Watch at YouTube

Paul

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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02-15-2011 09:01 PM  6 years agoPost 26
jprconstruction

rrApprentice

Nottingham,uk

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Video swimming

Hi and thanks for your replies,lele,s wave,and gyro freak.
Another question if I may.
Once I've got rid of my vibes and spent a few months messing around with the current HD camera I have which was only a couple of hundred dollars,which I will sell on eventually,what camera would you all suggest buying.
Me and the trouble and strife,were planning on getting a decent camera anyway as our old one is only about 3 megapixels.
I have seen these digital SLR cameras,some of them as high as 18 megapixels,plus some seem to have image stabilisation as well.
I don't quite understand the CMOS/3ccd technology and would need to know what's best to go for(obviously from the videos posted the 3 ccd seems the best choice.
My budget is about £500 (or 800 dollars USA)equivalent.
Let me know what you would choose.
Kindest regards
John

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02-15-2011 10:52 PM  6 years agoPost 27
splitboarder

rrApprentice

San Diego,​California

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Ps: the HD camera I have looks really clear and sharp when I load it to my computer editing software,why when you transfer it to YouTube does it look crap.
How does the rendered video file look when you play it back on your computer before you go to you tube?

Things that will effect your video
bit rate, keep it around 5000.

Type of file you output.

I dont use youtube, but it may like certain types of video files better than others.
Try to output to WMV and Quicktime , upload both to youtube abd see which looks better.

As Seismic pointed out, make sure the file you render out of you editing software is in HD.

Sizes

Vimeo likes 980 x 720 I dont know what youtube likes.

Putting HD video out onto the web is an art within it self. You just have to spend a few days rendering out different files in different formats, bitrates ect . Always use the same video clip, render out a few samples and send them to youtube and see which looks better.
Once you do find the setting you like the best you can usually render out at that setting from then on

If you want to learn about HD video output to the web, go to

Lynda.com

for 25 dollars amonth you have unlimited access to tutorials of all things video and photo.

Cameras- CCD will be less of a pain when chasing vibrations, but you will find its VERY HARD if not impossible to find a full HD camera, weither camcorde or DSLR that has CCD. Most everything is CMOS these days. As far as CCD I cant even recall anything new. But I would love to have a Canon XH-A1 but your gonna need a big heli to lift that.

I think Gyrofreak may be able to recommend a good CCD HD camera

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02-15-2011 11:10 PM  6 years agoPost 28
SeismicCWave

rrVeteran

Hilo, Hawaii

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>>Cameras- CCD will be less of a pain when chasing vibrations, but you will find its VERY HARD if not impossible to find a full HD camera, weither camcorde or DSLR that has CCD. Most everything is CMOS these days. As far as CCD I cant even recall anything new.<<

Exactly. We are all stuck with CMOS cameras and just have to work out the vibration kinks.

There are a lot of cameras on the market that will be better than what you are using. However you are only flying a 550 so you are limited in payload.

At this very moment I will seriously consider the Sony NEX-5. It can take some outrageously gorgeous still images and very acceptable video footage. It is a CMOS camera so you do have to work hard in smoothing out the helicopter. However it is pretty good once you have the vibration under control. Best of all it is the lightest camera on the market with the largest sensor at this moment. It is only 9 ounces according to the specs. However in reality mine weighs in at 315 grams.

Sensor size does matter when it comes to image quality.

The next camera that I am waiting for is the Panasonic GH2. It has a slightly smaller sensor but it is suppose to give very nice video footage. Unfortunately it is out of stock all over the place. It is also a little heavier than the Sony NEX 5 but lighter than the Canon T2i.

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