Helical-scan digital video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format HD-D5 -- Part 2: Compression format

This part of EN 62330 defines the encoding process of the HD-D5 video compression and its data format for the 1 080/59,94i system (hereinafter referred to as the 1 080i system) and the 720/59,94p system (hereinafter referred to as the 720p system).

Videokassettensystem mit Schrägspuraufzeichnung auf Magnetband 12,65 mm (0,5 in) - HD-D5-Format -- Teil 2: Kompressionsformat

Système de magnétoscope numérique à cassette à balayage hélicoïdal sur bande magnétique de 12,65 mm (0,5 in) - Format HD-D5 -- Partie 2: Format de compression

This part of EN 62330 defines the encoding process of the HD-D5 video compression and its data format for the 1 080/59,94i system (hereinafter referred to as the 1 080i system) and the 720/59,94p system (hereinafter referred to as the 720p system).

Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na magnetnem traku, širokem 12,65 mm (0,5 in) – Format HD-D5 – 2. del: Kompresijski format (IEC 62330-2:2003)

General Information

Status
Published
Publication Date
31-Dec-2004
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2005
Due Date
01-Jan-2005
Completion Date
01-Jan-2005

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SLOVENSKI SIST EN 62330-2:2005

STANDARD
januar 2005
Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na
magnetnem traku, širokem 12,65 mm (0,5 in) – Format HD-D5 – 2. del:
Kompresijski format (IEC 62330-2:2003)
(istoveten EN 62330-2:2004)
Helical-scan digital video cassette recording system using 12, 65 mm (0, 5 in)
magnetic tape - Format HD-D5 - Part 2: Compression format (IEC 62330-2:2003)
ICS 33.160.40 Referenčna številka
SIST EN 62330-2:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD EN 62330-2
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2004

ICS 33.160.40; 35.240.99


English version


Helical-scan digital video cassette recording system
using 12,65 mm (0,5 in) magnetic tape -
Format HD-D5
Part 2: Compression format
(IEC 62330-2:2003)


Système de magnétoscope numérique  Videokassettensystem mit
à cassette à balayage hélicoïdal Schrägspuraufzeichnung
sur bande magnétique auf Magnetband 12,65 mm (0,5 in) -
de 12,65 mm (0,5 in) - HD-D5-Format
Format HD-D5 Teil 2: Kompressionsformat
Partie 2: Format de compression (IEC 62330-2:2003)
(CEI 62330-2:2003)




This European Standard was approved by CENELEC on 2004-03-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.


CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62330-2:2004 E

---------------------- Page: 2 ----------------------

EN 62330-2:2004 - 2 -
Foreword
The text of the International Standard IEC 62330-2:2003, prepared by Technical Area 6: Higher data
rate storage media and equipment, of IEC TC 100, Audio, video and multimedia systems and
equipment, was submitted to the formal vote and was approved by CENELEC as EN 62330-2 on
2004-03-01 without any modification.

The following dates were fixed:

– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-03-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-03-01

Annex ZA has been added by CENELEC.
__________

Endorsement notice

The text of the International Standard IEC 62330-2:2003 was approved by CENELEC as a European
Standard without any modification.
__________

---------------------- Page: 3 ----------------------

- 3 - EN 62330-2:2004
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
ITU-R BT.1543 - 1 280 x 720, 16 x 9 progressively - -
captured image format for production
and international programme exchange
in the 60 Hz environment

1)
ITU-R BT.709-5 - Parameter values for the HDTV - -
standards for production and
international programme exchange



1)
Undated reference.

---------------------- Page: 4 ----------------------

INTERNATIONAL IEC
STANDARD
62330-2
First edition
2003-05
Helical-scan digital video cassette recording
system using 12,65 mm (0,5 in) magnetic tape –
Format HD-D5 –
Part 2:
Compression format
 IEC 2003  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
X
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

---------------------- Page: 5 ----------------------

– 2 – 62330-2  IEC:2003(E)
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Acronyms. 6
4 Video processing . 8
4.1 Overview . 8
4.2 Video signal . 9
4.3 Block formation.11
4.4 SMBG distribution .16
4.5 DCT.19
4.6 Categorization and weighting .20
4.7 CG shuffling.24
4.8 RMB shuffling .27
4.9 Quantization .29
4.10 Rate control .29
4.11 VLC .29
4.12 Packing .33
Annex A (normative) Overlapped block DCT coding for robustness .44
Figure 1 – Block diagram of outline about video processing . 9
Figure 2 – Transmitting samples of 1 080i system.10
Figure 3 – Transmitting samples of 720p system.11
Figure 4 – Overlapped blocking of luminance (Y) pixels .12
Figure 5 – Overlapped blocking of colour difference C /C pixels .13
B R
Figure 6 – Macro block structure in 1 080i system and 720p systems .13
Figure 7 – Super macro block structure in 1 080i system and 720p systems.14
Figure 8 – Pixel arrangement for blocking of 1 080i system .15
Figure 9 – The arrangement of SMBs in one field for 1 080i system .16
Figure 10 – The arrangement of SMBs in one frame for 720p system .16
Figure 11 – SMBG distribution in 1 080i system .17
Figure 12 – SMBG distribution in 720p system .18
Figure 13 – The structure of DCT coefficient block.20
Figure 14 – CG shuffling for Y .25
Figure 15 – CG shuffling for C .26
Figure 16 – RMB shuffling .28
Figure 17 – The order of VLC coding .30
Figure 18 – Structure of C3RMB .34
Figure 19 – Rearrangement of VLC data codewords .36
Figure 20 – Data structure of one 1 080i field/720p frame .37
Figure 21 – Main data DIF block packing .42
Figure 22 – Packing the compressed data in 5 760 DIF Blocks.43
Figure A.1 – The process of missing coefficient reproduction .44

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62330-2  IEC:2003(E) – 3 –
Table 1 – The construction of video signal sampling . 9
Table 2 – Categorization of Y signal.21
Table 3 – Categorization of C signal .21
B
Table 4 – Categorization of C signal .21
R
Table 5 – Table CY0(t, u) .21
Table 6 – Table CY1(t, u) .22
Table 7 – Table CY2(t, u) .22
Table 8 – Table CY3(t, u) .22
Table 9 – Table CC0(t, u) .23
Table 10 – Table CC1(t, u) .23
Table 11 – Table CC2(t, u) .23
Table 12 – Codewords for variable length coding (1).30
Table 13 – Codewords for variable length coding (2).31

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– 4 – 62330-2  IEC:2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HELICAL-SCAN DIGITAL VIDEO CASSETTE RECORDING SYSTEM
USING 12,65 mm (0,5 in) MAGNETIC TAPE – FORMAT HD-D5 –
Part 2: Compression format
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attentions drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62330-2 has been prepared by Technical Area 6: Higher data rate
storage media and equipment of IEC technical committee 100: Audio, video and multimedia
systems and equipment.
It was submitted to the national committees for voting under the Fast Track Procedure as the
following documents:
CDV Report on voting
100/505/CDV 100/604/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
2008. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

---------------------- Page: 8 ----------------------

62330-2  IEC:2003(E) – 5 –
IEC 62330 consists of the following parts, under the general title Helical-scan digital video
cassette recording system using 12,65 mm (0,5 in) magnetic tape – Format HD-D5.
Part 1: VTR specifications
Part 2: Compression format
Part 3: Data stream format
Part 1 describes the VTR specifications which are tape, magnetization, helical recording,
modulation method and basic system data for high definition video compressed data on 29,97
or 59,94 frame rate.
This part 2 describes the specifications for encoding process and data format for 1080i and
720p systems.
Part 3 describes the specifications for transmission of HD-D5 compressed video and audio
data stream over 360 Mb/s serial digital interface.

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– 6 – 62330-2  IEC:2003(E)
HELICAL-SCAN DIGITAL VIDEO CASSETTE RECORDING SYSTEM
USING 12,65 mm (0,5 in) MAGNETIC TAPE – FORMAT HD-D5 –
Part 2 – Compression format
1 Scope
This part of IEC 62330 defines the encoding process of the HD-D5 video compression and its
data format for the 1 080/59,94i system (hereinafter referred to as the 1 080i system) and the
720/59,94p system (hereinafter referred to as the 720p system).
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
ITU-R BT.1543, 1 280 × 720, 16 × 9 progressively-captured image format for production and
international programme exchange in the 60 Hz
ITU-R BT.709, Parameter values for the HDTV standards for production and international
programme exchange
3 Acronyms
BUF Buffer memory
C Colour difference signal
C3RMB Compressed data of 3 RMBs
C(t, u) The value of the DCT coefficient at frequency (t, u)
C /C Colour difference signal
B R
CC0 ~ CC2 Categories for C DCT block
Ccoef( ) C DCT CG
CG Coefficient group
CGNR CG number of one Y/C DCT coefficient block in one RMB
CGNS CG number of one Y/C DCT coefficient block in one SMB
CN C3RMB number in one RMBG
CRcoef( ) Rearranged C DCT CG
CS C DCT block number in one SMB
CY0 ~ CY3 Categories for Y DCT block
DCT Discrete cosine transform
DIF Digital interface
DIF(n) DIF block numbered n
DN DIF block number
EOB “End of block” code
EOM “End of 3 RMBs” code

---------------------- Page: 10 ----------------------

62330-2  IEC:2003(E) – 7 –
exnor Logical exclusive nor
f( ) Offset value table for SMBG distribution
FCB Category flag of C DCT block
B
FCB′ Category flag of C DCT block
B
FCR Category flag of C DCT block
R
FCR′ Category flag of C DCT block
R
FFL Field number flag
FMB Category flag of the MB
FMB′ Category flag of the MB
FYa ~ FYd Category flags of the four DCT blocks (Ya ~ Yd) of the MB
FYa′ ~ FYd′ Category flags of the four DCT blocks (Ya ~ Yd) of the MB
H The horizontal SMB position number in one video field (1 080i system) or one
video frame (720p system)
HR The column position number of RMB
HS The column position number of SMB in one SMBG
IDCT Inverse discrete cosine transform
int (A) Integer part of A
LEN The byte length of C3RMB
MB Macro block
mod Modulus operator
N.A. Not applicable
Offset( ) Offset value for RMB shuffling
P(r, s) The value of the pixel at the position (r, s) in Y/C DCT block
Qno Quantization number
Qstep Quantization step value
r The horizontal pixel position number in Y/C DCT block
Rg The RMBG number within the RMBs
RMB Rearranged macro block
RMBG Rearranged macro block group
Rn The number of RMB coding order in each RMBG
s The vertical pixel position number in Y/C DCT block
SA The starting address of the remainder data in buffer memory
SABM One byte data of SA (two bytes)
Sg The SMBG number in one video field (1 080i system) or one video frame (720p
system)
SMB Super macro block
SMBG Super macro block group
t The horizontal frequency number in Y/C DCT coefficient block
TableCY0 ~ 3 Set up value tables for Y weighting function
TableCC0 ~ 2 Set up value tables for C weighting function
u The vertical frequency number in Y/C DCT coefficient block
V The vertical position number of SMB in one video field (1 080i system) or one
video frame (720p system)
VLC Variable length coding

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– 8 – 62330-2  IEC:2003(E)
VR The row position number of RMB
VS The row position number of SMB in one SMBG
W(t, u) Weighting value at frequency (t, u)
Y Luminance signal
Ya ~ Yd Four Y DCT blocks in one MB
Ycoef( ) Y DCT CG
YR The Y DCT coefficient block number in one RMB
YRcoef( ) Rearranged Y DCT CG
YS The Y DCT block number in one SMB
Z The row position number of the RMB after RMB shuffling
ZRL Code of 15 successive zero coefficients followed by a coefficient of zero
amplitude
4 Video processing
4.1 Overview
Luminance (Y) and colour difference components (C and C ) from 1 080i or 720p video signal
B R
are sampled by 74,25/1,001 MHz and 37,125/1,001 MHz respectively.
After discarding samples in vertical and horizontal blanking periods, active video samples are
divided into four super macro block groups (SMBG) per field (1 080i) or per frame (720p). Each
SMBG consists of 1 080 super macro blocks (SMB).
Each SMB consists of two MBs. Each MB consists of four luminance DCT blocks (8 × 4 pixel
matrix) and one each of C DCT block (8 × 8 pixel matrix) and C DCT block (8 × 8 pixel
B R
matrix).
As described later, two horizontally adjacent luminance DCT blocks are overlapped by one
pixel column at their junction. Two horizontally adjacent chrominance DCT blocks are
overlapped by one pixel column at their junction when they are formed into SMB.
Each DCT block is transformed to represent DC and AC coefficients. Coefficients are weighted
through the prearranged categories prior to shuffling, then formed into rearranged MBs (RMB).
DCT coefficients within one rearranged MB group (RMBG) are quantized, and made into a
fixed length data set through VLC.
The VLC output code words from one RMBG are formed into 360 DIF blocks.
The compressed video data for one 1 080i field or one 720p frame consists of 5 760 DIF
blocks.
The block diagram of the outline about video processing is shown in Figure 1.

---------------------- Page: 12 ----------------------

62330-2  IEC:2003(E) – 9 –
Base band
Video Signal
DIF blocks
SMBG RMB
CG
Blocking DCT Weighting Quantization VLC Packing
shuffling
distribution shuffling
1 080i
720p
Rate
Categorization
control
Figure 1 – Block diagram of outline about video processing
4.2 Video signal
4.2.1 Sampling process
The sampling structure is defined in ITU-R BT.709 and ITU-R BT.1543. Sampling structures of
the luminance (Y) and the two colour difference signals (C /C ) are described in Table 1.
B R
4.2.1.1 Line structure in one field (1 080i system) or frame (720p system)
For the 1 080i system, 540 lines for Y, C and C signals from each field shall be transmitted.
B R
For the 720p system, 720 lines for Y, C and C signals from each frame shall be transmitted.
R B
The transmitting lines on a television frame are defined in Table 1.
Table 1 – The construction of video signal sampling
1 080i system 720p system
Y 74,25 MHz / 1,001
Sampling frequency
C /C 37,125 MHz / 1,001
B R
Y 2 200 1 650
Total number of pixels
per line
C /C 1 100 825
B R
Y 1 920 1 280
The number of active
pixels per line
C /C 960 640
B R
Total number of lines per frame 1 125 750
The number of active lines per frame 1 080 720
Field 1 21 to 560
The active line numbers Frame 26 to 745
Field 2 584 to 1 123
Quantization Each sample is linearly quantized to 10 bits for Y, C and C
B R
Scale 4 to 1 019
Quantized level: 877
The relation between Y Video signal level of white: 940
video signal level and
Video signal level of black: 64
quantized level
Quantized level: 897
C /C
B R
Video signal level of gray: 512

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– 10 – 62330-2  IEC:2003(E)
4.2.1.2 Pixel structure in one field (1 080i) / in one frame (720p)
– 1 080i system
All sampled pixels, 1 920 luminance pixels per line and 960 colour difference pixels, are
retained for processing as shown in Figure 2. The sampling process starts simultaneously
for both luminance and colour difference signals.
– 720p system
All sampled pixels, 1 280 pixels per line and 640 colour difference pixels, are retained for
processing as shown in Figure 3. Sampling processes start simultaneously for both
luminance and colour difference signals.
1,001 / 74,25MHz
0    1    2   3    4    5    6    7   8    - - - - -  [Y pixel numbers in active area]
0        1        2        3        4    - - - - -  [C /C pixel numbers in active area]
B R
[the active line numbers]
First active line in field 1 line 21
First active line in field 2 line 584
line 22
line 585
line 23
line 586
:
:
:
First pixel in active period where : Transmitting luminance (Y) pixels
: Transmitting colour difference (C /C ) pixels
B R
Figure 2 – Transmitting samples of 1 080i system

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62330-2  IEC:2003(E) – 11 –
1,001 / 74,25MHz
0    1    2   3    4    5    6    7   8    - - - - -  [Y pixel numbers in active area]
0        1        2        3        4    - - - - -  [C /C pixel numbers in active area]
B R
[the active line numbers]
First active line in a frame line 26
line 27
line 28
line 29
line 30
:
:
:
First pixel in active period : Transmitting luminance (Y) pixels
where
: Transmitting colour difference (C /C ) pixels
B R
Figure 3 – Transmitting samples of 720p system
4.3 Block formation
4.3.1 DCT block, macro block (MB) and super macro block (SMB)
4.3.1.1 DCT block
The Y pixels in a field (1 080i system) and in a frame (720p system) shall be divided into
rectangular areas of 15 horizontal pixels and 4 lines. Two Y DCT blocks (one Y DCT block pair)
are made from each one of the rectangular areas as shown in Figure 4. In each Y DCT block
pair, the rightmost pixel in the left DCT block is overlapped with the leftmost pixel in the right
DCT block (overlapped blocking).
The C /C pixels in a field (1 080i) and in a frame (720p) shall be divided into rectangular
B R
areas of 15 horizontal pixels and 8 lines. Two C DCT blocks (one C DCT block pair) are made
from each one of the rectangular areas as shown in Figure 5. In each C DCT block pair, the
rightmost pixel in the left block is overlapped with the leftmost pixel in the right block
(overlapped blocking). Overlapped blocking is used for the robustness of error (see Annex A).
Let r be the horizontal pixel position number in Y/C DCT block
 r = 0, 1, 2, ., 7.
Let s be the vertical pixel position number in Y/C DCT block
 For Y block s = 0, 1, 2, 3
 For C block s = 0, 1, 2, ., 7.
Let P(r, s) be the value of the pixel at the position (r, s)
4.3.1.2 Macro block (MB)
Each macro block (MB) in the 1 080i system and the 720p system consists of two Y DCT block
pairs, one C DCT block and one C DCT block. Two Y DCT block pairs are vertically
B R
adjacent. C DCT block and C DCT block spatially correspond to the two Y DCT block pairs.
B R
Four Y DCT blocks (Ya, Yb, Yc, Yd), one C DCT block and one C DCT block are shown in
B R
Figure 6.

---------------------- Page: 15 ----------------------

– 12 – 62330-2  IEC:2003(E)
4.3.1.3 Super macro block (SMB)
As shown in Figure 7, each super macro block (SMB) in the 1 080i system and the 720p
system consists of two macro blocks which are horizontally adjacent. Two C DCT blocks of
C /C in one super macro block are one C DCT block pair of C /C .
B R B R
Let YS be the Y DCT block number in each SMB as shown in Figure 7.
 YS = 0, 1, 2, ., 7.
Let CS be the C DCT block number in each SMB as shown in Figure 7.
 CS = 0, 1.
Overlap
Left Right
Top
Bottom
r r
0  1 2 3 4 5 6 7 0  1 2 3 4 5 6 7
0
0
1
1
s
s
2
2
3 3
Left DCT block Right DCT block
Y DCT block pair
where   represents luminance (Y) pixels
Figure 4 – Overlapped blocking of luminance (Y) pixels

---------------------- Page: 16 ----------------------

62330-2  IEC:2003(E) – 13 –
Overlap
Left Right
Top
Bottom
r r
0   1   2 3   4 5  6   7 0   1   2 3   4 5  6   7
0
0
1 1
s s
2
2
3
3
4 4
5
5
6 6
7
7
Left DCT block Right DCT block
C DCT block pair
represents colour difference (CB/CR) pixels
where     representscolour difference (C /C ) pixels
B R
Figure 5 – Overlapped blocking of colour difference C /C pixels
B R
15 pixels (Y)
8 pixels (Y)
8 pixels (Y)
4
Ya Yc
pixels
8
pixels
Yb Yd
8
pixels
(C /C )
C
B R
B
C
R
8 pixels (C /C )
B R
Figure 6 – Macro block structure in 1 080i system and 720p systems

---------------------- Page: 17 ----------------------

– 14 – 62330-2  IEC:2003(E)
30 pixels (Y)
15 pixels (Y)
8 pixels (Y)
8 pixels (Y)
Y
C
B
4
YS=0 YS=4 YS=6 YS=2
pixels
8
C
R
pixels
YS=1 YS=5 YS=7 YS=3
8
pixels
CS=0 CS=1
CS=0 CS=1
8 pixels
8 pixels
15 pixels
Figure 7 – Super macro block structure in 1 080i system and 720p systems
4.3.2 Super macro block arrangement
4.3.2.1 1 080i system
The vertical field dimension, 540 pixel long, is not divisible into an integer by the vertical
dimension of the SMB, 8 pixels long.
In order to place all SMBs within the 1 920 × 540 pixel matrix of the 1 080i field, removal and
attachments of half height SMBs are required as shown in Figure 8.
1) Y pixels
– Pixels in four rectangular areas of the horizontal pixel position number from (480 x N)
to (59 + 480 x N) and from (360 + 480 × N) to (419 + 480 × N) in the active area and
line position number from 536 to 539 in the active area shall be moved horizontally
1 020 pixel positions to the right, vertically 4 lines to the bottom (N = 0, 1).
– Pixels in two rectangular areas of the horizontal pixel position number from (240 + 480 x
N) to (359 + 480 × N) in the active area and line position number from 536 to 539 in the
active area shall be moved horizontally 840 pixel positions to the right, vertically 4 lines
to the bottom (N = 0, 1).
– Pixels in four rectangular areas of the horizontal pixel position number from (960 + 480
x N) to (1 019 + 480 × N) and from (1 320 + 480 × N) to (1 379 + 480 × N) in the active
area and line position number from 536 to 539 in the active area sh
...

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