Post by Safe Drivers Unite on Mar 22, 2014 14:48:38 GMT -5
Ok so after enjoying the life of high definition 1080p resolutions the past few years we have they have come out with something new called 4K. To get an idea on what 4K is take a look at this diagram.
However, 4K will have another use besides just having a better picture! As you can see 4K is just over 4x the pixel density as 1080p. What that means for us dashcammers is that you can crop sections of the video (looking at a license plate for example) and still have very good quality to make out what it is! The more pixel density a video or picture is the better it will look AND the more you can zoom into it and still be able to read the image! What that means is you would be able to make out a license plate (or whatever else) from a much farther distance! However it will still be a few years till 4K becomes more common as I still see people that use the old Tube televisions and computer monitors and haven't upgraded to a flat screen yet...
I have a camera that does record in 4K but it only does so at 15 frames per seconds (also known as "FPS") (youtube uses 30 and our eyes see in the equivalent of 60) but thankfully it does give us an idea on whats to come but another thing is that that a two minute file is half a gig with 15 FPS, meaning if it recorded in the usual 30 FPS that most cameras use it would be about a gig every two minutes which would require much larger storage depending on how far you drive. I just recently got new video editing software today that does allow me to edit in 4K so I will me experimenting with this more and giving you updates as it all comes along. Check out the video below that I made last week to get an idea on what 4K is like!
Post by Volvodashcam on Mar 25, 2014 19:03:57 GMT -5
One problem with 4k and dashcaming I think would be the light.. in dark conditions the lins would need more light than a cam with lower resolution to show the picture with the same brightness. You would need bigger lenses so they can let in more light. Maby this will not be a problem in a year or two.. they said the same thing about HD 6-7 years ago.
Post by ThatDashcamChannel on May 24, 2014 23:30:47 GMT -5
I won't upload in 4k even if I had a camera that could run it. Editing would take a lot of computer which I simply do not have. And then there is the fact it would take hours to upload. 1gb is ~2 hours of uploading for me.
I upload in 720p, so cropping is what I already do. A 4k movie would give me the opportunity to zoom digitally, and not loose any quality, similar to what I am doing now, just MOAR zoom! I am exited for it, but I won't adopt until quit a few years I'm afraid!
Post by dumbdriversofwaandor on May 30, 2014 18:00:32 GMT -5
One advantage I see with having a camera that can do 4k is having the ability to zoom in on something with the video editing program without losing too much detail. I'd still process the final video in 1080p though since most computer monitors don't go higher than that and most internet connections, and YouTube, seem to only handle 720p the best. I'd also want to wait 'til I have built a better computer with the processing power that could handle 4k with very little hesitation. Not sure how my 8120 FX 8-Core would do trying to edit a 4k video. I'd also want the camera to do 30 fps. Not 15.
Post by DontDentMyCar on Nov 16, 2014 19:01:33 GMT -5
Kind of sad to see 144p and even 240p still on the list, but when those first vids started streaming it gave youtube a purpose.
Hate to admit this, but I can remember 4 MB's. Yes 4 MB hard drives that is, and it seemed amazing when 8 MB's was 'now available'. Just think how much more you'd be able to store w/ 8 MB's
2160p will become mainstream if computers can handle them, especially if they can stream them. I know my cable company has already up'd my download speed from the 50MB/s to around 105MB/s. But, I also know that the 'buffer' is acting differently than just a couple of years ago, so that by the time it is able to step up to full 2160p half the video might already be over.
I only hope that dash cam manufacturers start to use this extra space to help us capture license plates from 25 yards or so. Right now it seem like we're lucky to be able to read a plate at 25 feet.
To be honest Safe Drivers Unite I can't tell much of a difference w/ your example, but that could be because of the time of day. It'd be great to have a side by side comparison.
Post by Bad Drivers of Columbus, GA on Nov 20, 2014 16:42:45 GMT -5
My internet (AT&T DSL at 6 Mbps) sucks with even 1080P videos. I don't see 4K in my near future (plus my laptop only has a 1080P screen). There's only one other ISP we can get internet from and they have terrible reviews (but our neighbor has them and the service works well for them).
Post by Volvodashcam on Nov 26, 2014 5:15:59 GMT -5
The big plus, even with the screens limits, is that you would be able to digitaly zoom in the picture with no feeling of loosing quality. I would still make 1080p-videos at the end, but with the possibility to zoom in and still keep the 1080p quality at full. It would make it possible to read plates at a much greater distance as well.
So, do you need a monitor resolution at 4000k to see these video's in full resolution? Didn't think of that, so I wouldn't be able to view the higher resolution anyway.
I wonder if you have a LED or plasma TV (over 60") if this extra resolution helps. I wonder if the extra 4000k is designed for this (future trend) rather than computer monitors.
Yes, you do need a 4k (not 4000k, that would be insane ) monitor to see it in it's full resolution, and it makes a bigger difference on bigger screens, but like volvodashcam said, it has its benefits for lower resolution screens when zooming.
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