Tag Archives: 4K

4K or not 4K, that is the question

I am still baffled by this 4K technology. I understand the math fairly well: 1080p is basically “2K” or 2048 pixels wide, 4K is 4096 pixels wide. UHD is roughly 4K, but actually slightly less that 4K if you want to get technical. What it all comes down to is “more pixels = higher resolution = better picture. Right? Now that I have a 4K “Smart TV” I’ve been running some practical tests. Here’s what doesn’t make sense to me. I can play a specific movie on my X-Box that is 4K with HDR, and it looks great. The blackest blacks, everything just “pops” and it’s very nice. Then I take the exact same movie in 1080p digital format and play it through the Plex app on my Smart TV and I swear it actually looks BETTER in 1080p! It seems sharper and things “pop” even more. I have checked the X-Box and it’s definitely in 4K, and the Smart TV is also in 4K, so it has to upscale the 1080p image to 4K. But how can a 1080p movie possibly look better than a 4K HDR movie–Especially if it’s the exact same movie? I’ve done this several times and it completely baffles me. They are both beautiful images, and I’m happy to watch either one, but it just doesn’t make sense.

Because of the high price of 4K UHD Blu-Ray discs–and the fact that they’re physical objects, so they require extra effort to actually use–I haven’t purchased any of them since getting a 4K TV until now. I’ve been trying to go all-digital these days so I don’t have to go through the “trouble” of inserting a DVD each time I want to watch a movie (first-world problem, I know). I’ve even converted all of our Blu-Ray movies to digital files for this same reason, fed them to Plex, and it has worked out great so far. 4K movies in digital format, on the other hand, are ridiculously huge, so I’ve stuck to 1080p for digital movies. And based on my test results above, I’m still very happy with upscaled 1080p at the moment. If anyone can shed some light on what’s going on here though, I’d really appreciate it.

Drone

home-from-droneThis weekend Matt stopped by with his new drone!  Wow, what a piece of technology!  I was a little curious at the start, but much more so once he was flying it and showing us the features.  He bought a rather expensive model (at least in my book), and it has some pretty sweet features and specs, including a nice gimble & camera.  The gimble allows for beautifully smooth movement of the camera while shooting up to 4K video or 12-megapixel snapshots.

He started it up in the driveway, got up between 200 and 300 feet to clear everything tall in the neighborhood, then flew it around.  I must say, it scared me a bit knowing how much that little toy costed, and watching it zoom out of sight over the neighborhood.  It has a decent range, but I still found it scary.  It probably would have felt even worse, had I been the one who paid for it!  He mentioned getting to a certain point where the video starts to cut out…sheesh, now THAT could give me heart issues… but there’s a nifty little “Go Home” feature and calls it back and it comes right back to your location.

After some flying around and recording (both from my cell phone and from the 4K camera on the drone) until the drone’s battery was nearly dead and getting pretty chilly in the 32-degree weather, we came back inside to warm up and figure out how to view the footage as quickly as possible.

I transferred the videos to my PC and could view them there, but we wanted to watch them on the big TV.  It’s 1080p though, so we couldn’t actually view them in full 4K quality.  I used my laptop, which already has a dock connected to the TV, and the video looked awesome!

The video on a MicroSD card is limited to 4GB file sizes, so our footage was split into two files – one about 8 minutes (4GB in size), and the other about 6 minutes (about 3GB in size).  I wanted to use ShareStudio, an app on the PS4, to edit the video, but unfortunately, the PS4 didn’t recognize the video file format that the drone used.

After we finished ogling the fine footage, I dropped the videos into my YouTube channel to start uploading them to the internet.  After a few hours they completed, and the footage still looks quite impressive there, and now we can share them with everyone easily.  Take a look if you want.  Here’s Part 1 and Part 2 from the drone, and my cell phone footage.

I want to be able to edit those three videos into one nice one, complete with cuts back and forth between be shooting the drone, and the drone shooting me, when we were playing with the “Follow Me” feature of the drone, but I tried doing so in Corel VideoStudio, but it didn’t work out so well.  The resulting video, which I wanted to save as a 4K video, was horrible with dropped frames throughout and full choppiness, rendering it unwatchable.  I might try it again at 1080p, just to see if it’s the 4K it can’t handle, or if my PC’s just not powerful enough to handle the job.