> Randy Yates wrote:
>
>> I'm looking for authoritative and in-depth on-line or hardcopy
>> references to the following topics:
>
>> 1. The YUV color scheme and the reason for the choices in
>> its various bit-depths (i.e., 6-2-2, etc.), how it maps
>> to RGB, and any other pertinent info.
>
>> 2. The composite video, component video, PAL, and NTSC
>> standards.
>
>> 3. MPEG4 video and audio coding.
>
> The book I have is "Techniques and Standards for Image Video and Audio Coding" by K.R.Rao and J.J.Hwang, which I like.
Hey Glen, thanks! I actually cancelled Poynton's order and
ordered this Rao book - looks excellent!
On reading some of Poynton's material more closely (originally I had
just viewed the topics, which were extremely appropriate to my
search), I found that I didn't care for his style of writing. (He
seems to have a tendence to throw a bunch of unrelated and/or undefined
stuff in when explaining a concept.)
--
% Randy Yates % "Watching all the days go by...
%% Fuquay-Varina, NC % Who are you and who am I?"
%%% 919-577-9882 % 'Mission (A World Record)',
%%%% <yates@ieee.org> % *A New World Record*, ELO
http://home.earthlink.net/~yatescr
Reply by glen herrmannsfeldt●May 24, 20052005-05-24
Randy Yates wrote:
> I'm looking for authoritative and in-depth on-line or hardcopy
> references to the following topics:
> 1. The YUV color scheme and the reason for the choices in
> its various bit-depths (i.e., 6-2-2, etc.), how it maps
> to RGB, and any other pertinent info.
> 2. The composite video, component video, PAL, and NTSC
> standards.
> 3. MPEG4 video and audio coding.
The book I have is "Techniques and Standards for Image Video
and Audio Coding" by K.R.Rao and J.J.Hwang, which I like.
From the NTSC days, luminance/chrominance allows the signal
to be received by monochrome sets, and also saves the bandwidth
by using reduced bandwidth for the color subcarrier.
One that I always thought interesting about NTSC is that they
studied the resolution of the eye for different color pairs and
chose the YIQ coding, a 33 degree rotation of the color
matrix, that is, a 33 degree phase shift. The axes for
maximum and minimum color resolution do not align with the
RGB axis, but are rotated from them.
The color burst is along an axis making it easy to decode,
to less than full resolution, along the R and B axis, for
YUV. Around the time that HDTV standards were being formed
companies started selling Enhanced Definition TV, using the proper
decoding of the NTSC standard, then about 40 years old.
(Well, generating the proper decoder using vacuum tubes
for the decoding matrix would have been a little expensive.)
(Sometime around 1980 I went to my college library to find a
book about color TV standards. From the card catalog "Television Today
and Tomorrow" sounded good. It turned out that it was before CRTs were
used for television, and described spinning disks and neon lamps.)
-- glen
> Randy Yates wrote:
>>
>> Hi Folks,
>>
>> I'm looking for authoritative and in-depth on-line or hardcopy
>> references to the following topics:
>>
>> 1. The YUV color scheme and the reason for the choices in
>> its various bit-depths (i.e., 6-2-2, etc.), how it maps
>> to RGB, and any other pertinent info.
>>
>> 2. The composite video, component video, PAL, and NTSC
>> standards.
>>
>> 3. MPEG4 video and audio coding.
>
> Randy,
>
> I am no video expert, but faced with a situation to work on video coding on
> short notice, I did some research.
>
> MPEG4 and H.264 - by Ian Richardson is a good book that I found. H.263 is also
> a less complicated standard too look at, to understand the general flow of
> processing. About the colour depth and other schemes, I generally relied on
> wikipedia and the web. "Video Demystified" book has lots of info about PAL and
> NTSC, but lacks depth on any of the topics it covers. It still didn't
> demystify many of my video concepts.
>
> I read afew other recommendations about the book by Barry Haskel and Arun
> Netravali. It is supposedly a very fundamental book on video and image coding,
> but probably a bit dated on algorithms used in newer standards like H.264.
>
> --
> Ramakrishnan
Thanks Ramakrishnan for your time in writing these suggestions/reviews. I think,
however, I will go with Poyton's book (referred by Peter) as it has more of the
solid fundamentals I seek. MPEG4 is graduate school - I'm still in 4th grade!
--Randy
--
% Randy Yates % "The dreamer, the unwoken fool -
%% Fuquay-Varina, NC % in dreams, no pain will kiss the brow..."
%%% 919-577-9882 %
%%%% <yates@ieee.org> % 'Eldorado Overture', *Eldorado*, ELO
http://home.earthlink.net/~yatescr
Reply by Randy Yates●May 23, 20052005-05-23
"Peter K." <p.kootsookos@iolfree.ie> writes:
> Randy Yates wrote:
>
>> I'm looking for authoritative and in-depth on-line or hardcopy
>> references to the following topics:
>>
>> 1. The YUV color scheme and the reason for the choices in
>> its various bit-depths (i.e., 6-2-2, etc.), how it maps
>> to RGB, and any other pertinent info.
>
> Charles Poynton's Color FAQ is the best on-line for most color-related
> stuff:
>
> http://www.poynton.com/ColorFAQ.html
>
> It possibly won't help much with the bit depths; check out his list of
> references.
>
>
>> 2. The composite video, component video, PAL, and NTSC
>> standards.
>
> Charles Poynton's book "A Technical Introduction to Digital Video" is
> decent.
>
>> 3. MPEG4 video and audio coding.
>
> Have a browse through the whole site:
>
> http://www.poynton.com/
>
> If he doesn't have what you want, check out his references.
>
> :-)
>
> Ciao,
>
> Peter K.
As usual, Peter, you are a scholar and a gentleman. Thank you for
these excellent references.
--
% Randy Yates % "How's life on earth?
%% Fuquay-Varina, NC % ... What is it worth?"
%%% 919-577-9882 % 'Mission (A World Record)',
%%%% <yates@ieee.org> % *A New World Record*, ELO
http://home.earthlink.net/~yatescr
Reply by ●May 23, 20052005-05-23
Hi Randy,
IIRC, the docs for Analog Devices' Blackfin EZ-KIT contains a
discussion of the NTSC format (I'm pretty sure you can get 'em from the
website, with a little digging). Googling on "NTSC timing" gets some
hits, too.
HTH,
Rick Armstrong
Reply by Ramakrishnan Muthukrishnan●May 23, 20052005-05-23
Randy Yates wrote:
>
> Hi Folks,
>
> I'm looking for authoritative and in-depth on-line or hardcopy
> references to the following topics:
>
> 1. The YUV color scheme and the reason for the choices in
> its various bit-depths (i.e., 6-2-2, etc.), how it maps
> to RGB, and any other pertinent info.
>
> 2. The composite video, component video, PAL, and NTSC
> standards.
>
> 3. MPEG4 video and audio coding.
Randy,
I am no video expert, but faced with a situation to work on video coding on
short notice, I did some research.
MPEG4 and H.264 - by Ian Richardson is a good book that I found. H.263 is also
a less complicated standard too look at, to understand the general flow of
processing. About the colour depth and other schemes, I generally relied on
wikipedia and the web. "Video Demystified" book has lots of info about PAL and
NTSC, but lacks depth on any of the topics it covers. It still didn't
demystify many of my video concepts.
I read afew other recommendations about the book by Barry Haskel and Arun
Netravali. It is supposedly a very fundamental book on video and image coding,
but probably a bit dated on algorithms used in newer standards like H.264.
--
Ramakrishnan
Reply by Adam Hawes●May 22, 20052005-05-22
I have a book here...
"Digital Video Processing" by A Tekalp that goes into a lot of that
stuff. It's probably not as authoritive as the standards documents,
but it discusses analog video, digitising, compression and processing
at a good level of detail.
Another is "Video Demystified" but I can't remember that author.
A
Reply by Randy Yates●May 22, 20052005-05-22
"Clay S. Turner" <Physics@Bellsouth.net> writes:
> [...]
Sounds like a great book - I'd like to see it.
--
% Randy Yates % "Ticket to the moon, flight leaves here today
%% Fuquay-Varina, NC % from Satellite 2"
%%% 919-577-9882 % 'Ticket To The Moon'
%%%% <yates@ieee.org> % *Time*, Electric Light Orchestra
http://home.earthlink.net/~yatescr
Reply by Clay S. Turner●May 21, 20052005-05-21
"Randy Yates" <yates@ieee.org> wrote in message
news:1x80daul.fsf@ieee.org...
> Hi Folks,
>
> I'm looking for authoritative and in-depth on-line or hardcopy
> references to the following topics:
>
> 1. The YUV color scheme and the reason for the choices in
> its various bit-depths (i.e., 6-2-2, etc.), how it maps
> to RGB, and any other pertinent info.
>
> 2. The composite video, component video, PAL, and NTSC
> standards.
>
> 3. MPEG4 video and audio coding.
>
> Believe it or not Google didn't seem to help much.
> --
> % Randy Yates % "Watching all the days go by...
> %% Fuquay-Varina, NC % Who are you and who am I?"
> %%% 919-577-9882 % 'Mission (A World Record)',
> %%%% <yates@ieee.org> % *A New World Record*, ELO
> http://home.earthlink.net/~yatescr
Hello Randy,
I recall a book in my high school library that explained in complete detail
the how's and why's of NTSC. I saw this book back in the 70's. I remember a
psychological basis was used to justify the unequal lowpassing of the I and
Q color signals. Basically as an object subtends a smaller and smaller field
of view, the perceived color saturation diminishes. And this rate of
diminishment was different for the red-green and yellow-blue color vectors.
There is biological evidence that while the retina senses red, blue, and
green, the nerve signals are converted to red-green, yellow blue, and
black-white signals in eye. NTSC exploits this. This desaturation phenomenon
was used as a basis for bandwidth reduction for a monochrome (B&W)
compatible signal. The book had all of the equations along with their
justification. I have no idea how my school ended up with such a book, but
it was really neat. It was that book that also gave the reasoning behind the
changing of the scan rates from 60/15750 (black and white) to (IIRC)
59.62/15734.xxx (color NTSC) Hz for the vertical and horizontal
respectively. I know the colorburst frequency 3.57954MHz was chosen to be an
integral multiple of one half of the sampling rate. The audio subcarrier
frequency of 4.5MHz played a role in the frequency selection as one doesn't
want intermod products in the video.
I'll see if I can recall more. I've lamented not obtaining my own copy of
that book. It may have been published by RCA. I still live in the city where
I went to high school, but somehow I doubt they still have that book.
Clay
Reply by Peter K.●May 21, 20052005-05-21
Randy Yates wrote:
> I'm looking for authoritative and in-depth on-line or hardcopy
> references to the following topics:
>
> 1. The YUV color scheme and the reason for the choices in
> its various bit-depths (i.e., 6-2-2, etc.), how it maps
> to RGB, and any other pertinent info.
Charles Poynton's Color FAQ is the best on-line for most color-related
stuff:
http://www.poynton.com/ColorFAQ.html
It possibly won't help much with the bit depths; check out his list of
references.
> 2. The composite video, component video, PAL, and NTSC
> standards.
Charles Poynton's book "A Technical Introduction to Digital Video" is
decent.
> 3. MPEG4 video and audio coding.
Have a browse through the whole site:
http://www.poynton.com/
If he doesn't have what you want, check out his references.
:-)
Ciao,
Peter K.