Overlapping screens

That must be fun for an audio describer then.
I remember when the BBC got its first digital video effects system, it
seemed that every programme used it whether appropriate or not.
Another annoyance is that they seem to say things on programs with
factual content needing input from the public things like.
The web site is up here, and if you can't get it down, use the or code on
screen. Like where on screen might that be?

Brian
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Post by J. P. Gilliver
Recently, there's developed a fashion for, when they want to show two
screens, to have the left one overlapping and cutting into the right
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I wish they wouldn't.
--
... unlike other legal systems the common law is permissive. We can do what we
like, unless it is specifically prohibited by law. We are not as rule-bound
and codified as other legal systems. - Helena Kennedy QC (Radio Times 14-20
July 2012).

J. P. Gilliver

2023-10-29 14:34:40 UTC

Post by Brian Gaff
That must be fun for an audio describer then.
I remember when the BBC got its first digital video effects system, it
seemed that every programme used it whether appropriate or not.
Another annoyance is that they seem to say things on programs with
factual content needing input from the public things like.
The web site is up here, and if you can't get it down, use the or code on

(It's QR, not OR. I don't remember what it stands for.)

Post by Brian Gaff
screen. Like where on screen might that be?
Brian

Very good point! I _think_ it's usually upper right for the BBC, but I'm
not sure about that. Left for Sky - again, only from memory.

I _think_ if your smartphone (or whatever you use to read the codes) can
see all of the screen, it will _probably_ extract the URL OK (I'm pretty
sure all a QR code does is link to a URL), but I'm not sure about that,
not currently having one: can anyone verify that for Brian?

--
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)***@T+H+Sh0!:`)DNAf

The average age at which a woman has her first child has passed 30.
Jason Cowley, RT 2016/6/11-17

John Williamson

2023-10-29 14:55:33 UTC

(It's QR, not OR. I don't remember what it stands for.)

Boringly, Quick Response...

Post by Brian Gaff
screen. Like where on screen might that be?
Brian

Very good point! I _think_ it's usually upper right for the BBC, but I'm
not sure about that. Left for Sky - again, only from memory.
I _think_ if your smartphone (or whatever you use to read the codes) can
see all of the screen, it will _probably_ extract the URL OK (I'm pretty
sure all a QR code does is link to a URL), but I'm not sure about that,
not currently having one: can anyone verify that for Brian?

The QR code is read as a text string after decryption and decoding. This
is now often a URL, but it was originally used for product
identification where a barcode did not have enough characters available.

The error correction in the QR code data and the reading programs is
very good.

--
Tciao for Now!

John.

J. P. Gilliver

2023-10-29 15:48:58 UTC

[]

Post by J. P. Gilliver
(It's QR, not OR. I don't remember what it stands for.)

Boringly, Quick Response...

Thanks. (I'll now forget again!)
[]

Post by J. P. Gilliver
I _think_ if your smartphone (or whatever you use to read the codes) can
see all of the screen, it will _probably_ extract the URL OK (I'm pretty
sure all a QR code does is link to a URL), but I'm not sure about that,
not currently having one: can anyone verify that for Brian?

The QR code is read as a text string after decryption and decoding.
This is now often a URL, but it was originally used for product
identification where a barcode did not have enough characters available.

Thanks; interesting. I think nowadays it's virtually always used as a
URL - that's certainly the impression given by those drawing attention
to them. (Though they don't usually actually clarify to that extent.)

Post by John Williamson
The error correction in the QR code data and the reading programs is
very good.

--
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)***@T+H+Sh0!:`)DNAf

In 1969, Britain had towns full of soot, blackened buildings, and half the
population had no TV or cars - or inside loos. - James Burke, RT 2019/7/6-12

John Williamson

2023-10-29 16:50:10 UTC

Post by J. P. Gilliver
I know - hence the abuse of putting a logo, hole, or similar over the
middle. Can you confirm what I suggested to Brian - that for an
on-screen one, provided your smartphone (or whatever) can see the whole
screen, it'll decode a QR code that's on it somewhere?

That depends on the camera quality and how far away you sit. The camera
has to see each "dot" using more than one pixel, ideally four. The dot
size can also vary with the amount of data. Freeview SD has 720 x 576
pixel resolution, HD is 1920 x 1080 (From memory), and as I've not
noticed how big the QR code is, I can't be sure how close you need to
get with the average phone camera.

I would hope that someone has sat at the usual distance from the screen
with a smartphone to check that the QR square is big enough to read on
an HD screen.

--
Tciao for Now!

John.

Mark Carver

2023-10-29 17:12:03 UTC

Post by John Williamson
Freeview SD has 720 x 576
pixel resolution,

At best yes, at worst channels like Sky News etc only broadcast on there
at 544 x 576

J. P. Gilliver

2023-10-29 19:12:37 UTC

That depends on the camera quality and how far away you sit. The camera
has to see each "dot" using more than one pixel, ideally four. The dot
size can also vary with the amount of data. Freeview SD has 720 x 576
pixel resolution, HD is 1920 x 1080 (From memory), and as I've not
noticed how big the QR code is, I can't be sure how close you need to
get with the average phone camera.
I would hope that someone has sat at the usual distance from the screen
with a smartphone to check that the QR square is big enough to read on
an HD screen.

Unfortunately, Brian can't do that.

--
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)***@T+H+Sh0!:`)DNAf

"Bother,"saidPoohwhenhisspacebarrefusedtowork.

John Williamson

2023-10-29 19:45:21 UTC

Post by John Williamson
I would hope that someone has sat at the usual distance from the
screen with a smartphone to check that the QR square is big enough to
read on an HD screen.

Unfortunately, Brian can't do that.

I know, but I was hoping the broadcaster or programme creator would have
done it, if only to avoid complaints.

--
Tciao for Now!

John.

Brian Gaff

2023-10-30 12:42:59 UTC

Navilens is better again, and the phone can even tell you the direction and
how far away you are, counting down as you approach it. Very good for
products on a shelf, provided of course they don't stick something over it
in the store.

Brian
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Post by J. P. Gilliver
[]

Post by J. P. Gilliver
(It's QR, not OR. I don't remember what it stands for.)

Boringly, Quick Response...

Thanks. (I'll now forget again!)
[]

The QR code is read as a text string after decryption and decoding. This
is now often a URL, but it was originally used for product identification
where a barcode did not have enough characters available.

Thanks; interesting. I think nowadays it's virtually always used as a
URL - that's certainly the impression given by those drawing attention to
them. (Though they don't usually actually clarify to that extent.)

Post by John Williamson
The error correction in the QR code data and the reading programs is very
good.

I know - hence the abuse of putting a logo, hole, or similar over the
middle. Can you confirm what I suggested to Brian - that for an on-screen
one, provided your smartphone (or whatever) can see the whole screen,
it'll decode a QR code that's on it somewhere?
--
In 1969, Britain had towns full of soot, blackened buildings, and half the
population had no TV or cars - or inside loos. - James Burke, RT 2019/7/6-12

Brian Gaff

2023-10-30 12:38:36 UTC

Its QR until spellcheckers get hold of ot.
The new codes are in fact Navilens ones which can work from across the
room.
Brian
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