Too many K!

Saturday, February 29th, 2020

The sizes of television resolution, drawn to scale. Whether your TV is 40 inches, 52, or more, this is the number of underlying pixels.

Do you have a 4K TV? Are you contemplating an 8K TV? Maybe…take a breath.

I say this as a guy who has a 40 inch HD set (that’s 1920×1080 pixels) in a smallish room, and given the distances, the available content, and our aging eyes…that’s plenty good enough.

An article in TechHive sums it up in a headline: 8K vs 4K TVs: Double-blind study by Warner Bros. et al reveals most consumers can’t tell the difference.

In collaboration with Pixar, Amazon Prime Video, LG, and the American Society of Cinematographers (ASC), Warner Bros. recently addressed this question in a well-designed, double-blind study to see if people could discern a difference between 4K and 8K with a variety of content.
For the purposes of this article, “4K” refers to a resolution of 3840 x 2160, and “8K” refers to a resolution of 7680 x 4320. As you might already know, these definitions are something of a misnomer; to be technically accurate, “4K” really means 4096 x 2160 and “8K” means 8192 x 4320.

If that last part makes you scratch your head slightly, I do have Wikipedia links for 4K UHD TV and 8K UHD TV. Dig in!

Here’s a PDF from a SMPTE conference in 2012 that dives deep—maybe too deep—discusses the concepts of simple acuity, hyperacuity, and Snellen acuity. This is an extremely technical paper and I’m certainly not urging that you plow through it. It’s filled with stuff like this:

Oh, that Snellen! The guy who came up with the standard eye chart!

Bottom line, there’s a basic and yet quite satisfying viewing experience for which immersion is not the point, and when you live in a small apartment, immersion might not even be possible—the angles and distances don’t work out. You just want to see the numbers on the election returns, or the soccer ball, or the hockey puck.

And perhaps more importantly, much of the content out there is barely ‘1K’—HD, which, by the way, is a very nice image to look at from across the room indeed. And if it’s upsampled to a higher resolution, that’s a procedure that scientists are improving on, but you still can’t manufacture pixels out of thin air. Real resolution is the resolution you start out with.

Aspects of news.

Friday, February 28th, 2020

After hearing about a short film promoted by Apple (because of course it was shot on their flagship product), I winced after I rolled it on YouTube. It was in a vertical format, not the landscape aspect ratio that the world has experienced in movie theaters and on television screens pretty much since there were movie houses and TVs.

I joke about it a lot, but vertical videos for telling stories is just not a great idea. I should pause here for thousands of people who say “but the modern stories are Instagram stories, and they are verticals!! Books are verticals! People are now watching this sort of content on their phones and only on their phones, and that’s on a vertical screen!”

Even on my phone, watching the Apple video, I craved seeing what was to the left or to the right of my screen. And no, I never have similar cravings for “what’s above or below the frame” on landscape (wide) presentations. Maybe it has something to do with our eyes being mounted in our heads in landscape orientation.

And then I watched a clip or two online from EuroNews of their coverage of the coronavirus crisis. They’ve decided to visually split the difference, doing their videos in square format…and these short clips are not carefully crafted packages where a reporter speaks the who what when and where of the story…a bullet-point-like subset of that information appears on a bunch of large-type overlaid titles, almost always accompanied by what some editor thinks is appropriate music (that they have a license to use.) Oh, sad music for a pandemic…cartoony Benny Hill-style music for someone doing something embarrassing for the cameras….faux-majestic for coverage of the Royals.

These blip-news-verts are disposable, vapid, can be cranked out by minimum wage toilers in edit rooms, and are instantly forgettable. And if that’s what visual journalism is today, is there anyone who really wants to label that good journalism?

So what is good journalism in this time of fast and vertical? I do have one link for you: here’s some good reporting on urban issues from a guy in Vancouver, good enough that his work has been picked up and showcased by the CBC, Canada’s national public network. If you like that one, he has some others on the YouTube.

Budget image.

Thursday, February 27th, 2020

It’s a cold and clear day here in Atlanta, which is very different from this YouTube frame (life this afternoon) of an eastbound train in Fostoria, Ohio.

It’s flurrying up a storm—and it takes a lot of bandwidth to push this picture out.

This is actually a nice high-resolution camera, but like many digital sources in the tubes of the internet, it’s on a bit-budget. If the picture is relatively static‚ if relatively few pixels change from one thirtieth of a second to the next, then the camera system only needs to transmit the changed pixels, and can devote more of its bandwidth to transmitting more fine details of the part of the picture that isn’t changing moment to moment.

Throw a flurry of snowflakes—or a ton of confetti at a political convention—into the picture, and it dumps down to a much lower resolution, because more is changing from frame to frame, and the system has to do its best to depict that.

It’s amazing how low-def high-definition tv can get when the finite number of bits that can fit in the pipe are consumed by tiny flickery fast-moving things.

Same camera, less snow = less of a change from frame to frame.

Wednesday.

Wednesday, February 26th, 2020

I don’t think this is an average Wednesday because I’m not sure we have those anymore.

  • The market continued its downward trend in response to Coronavirus concerns and…wait, I’m being told that the President said it was going down in response to the Democrats debating. Hmmm. Let’s stick with that first explanation.
  • We were told it would rain heavily in the city this afternoon; it kind of misted and spat for the most part.
  • We ran (no, not literally) into our niece in the Trader Joe’s parking lot. That was a nice perk of the day.
  • The President appointed a guy to run the US Coronavirus response. A guy whose policies led to an HIV crisis in Indiana in 2015 because he sure didn’t want Planned Parenthood to…uh, do what it does so well. You know, our vice-president.
  • We quickly turned away from that and watched Survivor. Read into that what you will.
  • Later that evening, we watched coverage of the global health crisis and the US’s reaction to it on BBC World News, CBC’s The National and France 24. Somehow reassuring to be reminded that we’re all in this together. For the most part.

Open mic night.

Tuesday, February 25th, 2020

The South Carolina Democratic Debate. Seven people on stage.

The CNN analysis immediately afterwards: hey, eight people!

Although a bit of light was shed, the analysis by the eight about the performance of the seven was: hey, why weren’t those moderators at CBS doing a better job? You can’t just let them all talk at once!

Yeah, that never happens on CNN.

$5 rebirth.

Monday, February 24th, 2020

I’ve been spending a lot of this evening repairing the $5 Raspberry Pi Zero W computer I use to put standard definition images up on an old Sony Trinitron monitor in my office. Why? Because (besides the cool factor) I want to remember what standard definition—the old television, before everything went 16×9 and HD—felt like.

And did I mention this was a $5 computer?

Which is all well and good until I make a minor mistake, or the internet makes a tiny mistake, or the Raspberry Pi’s operating system makes a tiny mistake, usually in the midst of backing up or restoring zillions of tiny Linux packages—chunks of code—that make this 2.59 inch x 1.2 inch circuit board do its magic.

And then, it’s dead. Nothing happens. No lights on the circuit board. But I don’t despair, I plow through a convoluted multistep recipe that involves scrolling through screen after screen of stuff that looks like this:


Get:34 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf libmbim-proxy armhf 1.18.0-1 [70.7 kB]
Get:40 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf libposix-strptime-perl armhf 0.13-1+b4 [8856 B]
Get:41 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf libqmi-glib5 armhf 1.22.0-1.2 [443 kB]
Get:44 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf libunicode-linebreak-perl armhf 0.0.20190101-1 [98.3 kB]
Get:45 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf libva-wayland2 armhf 2.4.0-1 [17.4 kB]
Get:46 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf modemmanager armhf 1.10.0-1 [1363 kB]
Get:47 http://mirror.pit.teraswitch.com/raspbian/raspbian buster/main armhf mpv armhf 0.29.1-1 [831 kB]

Success.
..and after a great deal of holding-one’s-mouth-correctly, it comes back to life, as if nothing has happened.

This time.

Did I mention it’s a $5 computer?

Future snaps.

Sunday, February 23rd, 2020

Two things would have clued me from these pictures that I was living in The World Of The Future. The arch blue winglets on our Delta 737-900ER (no, not the model with the troubled autopilot system)…

…and the frankly spectacular arches that now cover the North and South terminals dropoff/pickup lanes at Hartsfield Jackson Airport. At night, they’re a cascade of LEDs (that yes, of course, can change colors, just like the top of the Empire State Building). The canopies also of course deflect some of the heat and all of the rain on the summer afternoons like we have here.

But I suppose the real dead giveaway is that I have a phone that can take pictures this nice at night. The future! Welcome!

Reliable gourmet.

Saturday, February 22nd, 2020

At the southern end of Lake City Way, past seemingly endless used car lots and pot and vape shops, lies a culinary promised land:

Really yummy food in a very unpreposessing setting. Nice way to end our visit.