Performance Analysis of Various Video Compression Techniques

International Journal of Science and Research (IJSR), India Online ISSN: 2319-7064
Volume 2 Issue 8, August 2013
www.ijsr.net
Performance Analysis of Various Video
Compression Techniques
Aman Gupta1
, Dinesh Goyal2
, Naveen Hemrajani3
1, 2, 3
Department of Computer Science, Suresh Gyan Vihar University, Jaipur, Rajasthan, India
Abstract: In familiar applications such as digital versatile disc (DVD), digital video can be found in digital TV, Internet video
streaming, digital high-definition television is defined formula. Digital video sharing digital format all functions, including lossless
transmission, lossless storage, easy to edit.Currently in many applications, including video conferencing, video games entertainment,
DVD discs, digital video broadcasting. As digital video compression format storage requirements prohibitive, lossy digital video
compression technology commonly used as the data transmission rate and a compromise between quality. In this paper, we compare and
analyze the MPEG-2 , H.261 and H.264 video compression standards.After the Compression , We get the result that the compression of
H.264 is better than other two but it take much time as compare to H.261 on higher cost.
Keywords: Codec, Container, H.261, H.261, MPEG-2.
1. Introduction
Digital video technology has been used for many years, for
example, in the television broadcasting industry. However,
until recently a number of factors have prevented
widespread use of digital video. The analog video signals
are usually bandwidth of several megahertz, however, when
it is converted into digital form, in the same quality, typical
digital version of the bit rate of more than 100 Mbps. For
most networks, or processor to handle, the bit rate is too
high. Thus, over the past few decades, before it can be
stored or transmitted information is compressed digital
video, digital video compression technology has been
constantly improved. Many international standards, focusing
on the different digital video applications have been
developed or are under development. In this paper we
compare video compression techniques such as H.261,
MPEG 2 and H.264, in order to analyze their performance
on the basis of their execution time and compression ratio.
To understand these standards firstly we discuss about the
video formats [1].
1.1 Video
To view a recording of moving images created digitally.
Moving image will be record in a proper digital format and
then they will play in a sequence that is called video.
1.2 Types of video formats
When the video will be Digital then there will be different
formats of video- WMV, ROV, MPEG. These standards will
have sub standards-MPEG1, MPEG 2, and H.264 and so on.
Video Format Involve Two Structured, And Very Different
Technology Concept: Container (Sometimes Call Envelope)
& Codec (Short form of Encoder / decoder). Codec Be Use
Inside Of a Container And Because Of This Video Format
Can Be Bewildering.
a. Container
That Container Introduction In Structure Of In File: Where
In Each Item Be Storage How They Be Staggered And
Which Codec Be Use By the Which Article It Possible
Designation A Audio frequency Codec As Good As Video.
It Be Use to Package in Video & Its Package (Audio /
metadata) And Be Determine (Usually) by the File
Extension So as AVI. . MP4 or MOV. Most Common
Container:
• AVI (Audio Video Interleave): A Windows' standard
multimedia container.
• MPEG‐4 Part 14 (known as .mp4): It is the
standardized container for MPEG‐4.
• FLV (Flash Video): It is the format used to deliver
MPEG video through Flash Player.
• MOV: Apple's QuickTime container format.
• OGG, OGM & OGV: open standard containers.
• MKV (Mastroska): It is another open specification
container that you've seen if you've ever downloaded
animation.
• VOB (DVD Video Object): It's DVD's standard
container.
• ASF: a Microsoft format designed for WMV and WMA
- files can end in .wmv or .asf [2]
b. Codec
A Codec (Short form "Encoder / Decoder") be A Way of
Coding Audio frequency Or Video Become a Flow of Bytes.
It Be in Method Use to Coding in Video and Be in Chief
Determine of High-quality products. Most Common Codec:
• MPEG (Moving Pictures Expert Group): Three video
formats, MPEG 1, 2, and 4.
• MPEG-1: Old, supported by everything (at least up to
352x240), reasonably efficient. A Good format for the
web.
• MPEG-2: Aversion of MPEG--‐1, with better
compression. 720x480. Used in HDTV, DVD, and SVCD.
• MPEG-4: A family of codec’s, some of which are open,
others Microsoft proprietary.
• H.264: Most commonly used codec’s for videos uploaded
to the web. Part of the MPEG-4 codec.
• MPEG spinoffs: mp3 (for music) and Video CD. MJPEG
(Motion JPEG): A codec consisting of a stream of JPEG
335

International Journal of Science and Research (IJSR), India
images. Common in video from Digital
Reasonable format for editing videos,
compress well, so it’s not good for web
c. Container codec
Think of in Container As In File Itself. Think
As Its Content. That Important Thing to
Most Good Container Format Can Hold
Example A MOV. Container Can Hold Almost
Of Codec Data. That With go to MP4 and
Can Hold A Width Breed of Codec. As Their
Way Not in Container Decide in Quality
Video Itself, That be On To In Codec. That
Description Video be to Show Both: A MOV.
H.264 Data. An AVI, File Contain
Professionals Use Shorthand to That, Words
"Give I a H.264 using quicktime File (MOV
d. Container Codec Complications
At first, this seems very simple, but it is
use common terminology confusion
Worse, the software companies try to simplify
documents and instructions completely
difference. As a result, it is believed that
will give you a MOV file," or "legitimate
MP4 files will be fine."
To make life even more confusing, some
as "MPEG - 4", describe both codec and
not always clear in the context of being used.
a movie an MPEG encoder - 4 One AVI
container, for example, or a movie inside
containers Sorenson codec's [2].
2. H.261
The ITU-T H.261 video coding standard,
November 1988.This is the first member
coding standards H.26x the ITU-T Video
Group field (VCEG) and the video codec
useful in practice.
H.261 standard actually only specifies how
video. Encoder design, free to design
algorithm, as long as they are properly
allows it to be any according to the
decodes. Encoder also left free to perform
processing they want their input video decoders
post-processing; they want their video
display. An effective post-processing techniques,
the best H.261-based system, a key
deblocking filter. This reduces artefacts caused
shaped block-based motion compensation
appearance of part of the design space
fact, the blocking artefacts may be a phenomenon
almost everyone who watches digital
recent standards, H.264 deblocking filter
integral part (although even when using H.264
additional post-processing can improve the
the performance is good).
International Journal of Science and Research (IJSR), India Online ISSN: 2319
www.ijsr.net
Digital cameras and a
videos, but it doesn't
distribution.[2]
Think Of In Codec
to Achieve Be That
Hold Many Codec. To
Almost Any Sample
and Even AVI. Files
Their Content, In No
Quality or Feature of in
That Correct Way to
MOV. File Contain
Contain divx is Data.
Words Thing Like
(MOV)” [2].
is not. The key is to
and inaccuracies.
simplify their own
completely ignore the
that phrases such as "I
"legitimate way about video
of the names, such
a container, so it is
used. , You can have
AVI codec inside the
inside an MPEG - 4
standard, was approved in
of a series of video
Video Coding Experts
codec is the first to be
how to decode the
their own coding
constrained output
standard decoder
perform any pre-
decoders allow any
decoding, prior to
techniques, to become
element is called
caused by the block-
compensation and the
transformation. In
phenomenon familiar to
videos. The most
filter has become an
H.264 still allowing
the visual quality, if
Standardization work in the future
design improvements have
relative H.261 compression
resulted in H.261 become essentially
used in some video conferencing
compatibility mode, and certain
However, H.261 video coding
major milestone in the history.
The basic concept of h.261
follows:
Figure 1 I: Frame and
• Decoded Sequence
• Frame types are CCIR 601
(176x144) images with 4:2:0
• Two frame types: Intraframes
(P-frames)
• I-frames use basically JPEG
• P-frames use pseudo-differences
(predicted), so frames depend
• I-frame provides us with an
3. MPEG 2
MPEG-2 standard is published
system specified in MPEG-2 systems
a multiplex audio and
synchronization sequence representing
information needed, means for
Video specified video data encoding
the reconstructed image precession
specifies the coded representation
Conformance testing [4].
In particular, the MPEG standard
pictures:
1. Intra-picture (I-picture)
2. Predicted picture (P-picture)
3. Bidirectional picture (B-Picture)
These three types of pictures
pictures.
Figure 2 I: Frames, P-frame,
Online ISSN: 2319-7064
future lead to the introduction of
been significantly improved
compression capacity design. This has
essentially obsolete, but it is still
conferencing system as a backward-
certain types of network video.
coding development area is still a
history.
compression is described as
and P-frame of H.261
601 CIF (352x288) and QCIF
4:2:0 sub sampling.
Intraframes (I-frames) and Interframes
JPEG
differences from previous frame
depend on each other.
an accessing point.[3]
published in four parts. Part 1: The
systems coding layer. It defines
video data and real-time
representing reproduction timing
for modular structures. Part 2:
encoding means and decoding
precession required. Part 3: Audio
representation of the audio data. Part 4:
standard defines three types of
picture)
Picture)
pictures combined to form a group of
frame, B-frame of MPEG 2
336

International Journal of Science and Research (IJSR), India
4. H.264
The latest video compression standard, H.264
as MPEG-4 Part 10/AVC Advanced Video
expected in the coming years as the
standard.
H.264 is an open, licensed most efficient
technology standard, support today. Without
image quality in the case, H.264 encoder
of a digital video file More than 80% compared
JPEG format and up to 50% or more with
second part of the standard. This means
bandwidth and storage space required for
seen another way, can achieve higher video
given bit rate [5].
Figure 3 I: Frames, P-frame, B-frame
Table 1: Study of Comparison between
h.261 MPEG-2
Quality Worst Medium
Size less More than h.261
TIme less More than H.261
5. Proposed Work
1. Parameters
To make the Comparison of different video
standards we will use parameters time and
compression standards we do the comparison
size of the file after compression and time
compression.
2. Quality of video
After the compression of using these standards,
analyze the file that the compressed file is
from the original data and will get that how
maintain after the compression. The
provides the better quality as compare to
be effective and useful for the video compression
6. Tool Used
6.1 MATLAB
MATLAB is a high level of numerical
visualization and programming language
environment. Using MATLAB, you can
the development of new algorithms, and
applications. Languages, tools, and built-
allowing you to explore a variety of ways,
solution faster than spreadsheets or traditional
languages such as C / C + + or Java.
International Journal of Science and Research (IJSR), India Online ISSN: 2319
www.ijsr.net
H.264 (also known
Video Coding), is
the preferred video
video compression
Without affecting the
can reduce the size
compared to, Motion
the MPEG-4 is the
means less network
for video Files. Or
video quality, for a
frame of H.264
between all Three
H.264
best
h.261 Less than from
H.261 maximum
video Compression
and size. In the video
comparison on basis of
time consume in the
standards, we will
is how much differ
how much quality is
The standard which
other standard will
compression purpose.
numerical computation,
language and interactive
can analyze the data,
create models and
-in math functions,
ways, and to reach a
traditional programming
6.2 Video Processing
Computer Vision System
processing algorithms and workflow
write common video formats,
chroma resampling algorithms
processing, video burning text
results. Using MATLAB video
thus avoiding the use of excessive
a video file.
7. Result & Analysis
7.1 Time Consumed to perform
video compression standards
Figure 4: Time (msecs) consume
standards
7.2 Compression of the data
Figure 5: Compressed and non
8. Conclusion
In this work we have tried to
compression standards for
compression. From above results
concluded.
1. The compression of h.264
techniques
Online ISSN: 2319-7064
Toolbox provides video
workflow tools. You can read and
formats, such as progressive and
algorithms perform common video
text and graphics displays the
video processing system objects,
excessive memory data stream from
perform the compression by the
standards
consume by video compression
standards
by the video standards
non compressed data size (KB)
to analyze the different video
effective and useful video
results following can be easily
h.264 is better than other two
337

International Journal of Science and Research (IJSR), India Online ISSN: 2319-7064
www.ijsr.net
2. The quality of compression is best in H.264 and is worst
in H.261
3. The time required for compression is more in H.264
while others have very less time
4. The H.264 format encodes all three frames that is I, P &
B while H.261 & MPEG-2 encode only I & P frames.
Thus it may be concluded that quality is better in case of
H.264 while cost is better in case of H.261 & MPEG-2.
9. Future Work
The results prove that if some time optimization tools may
be used for H.264 than H.264 can be a better technique. The
MPEG-2 and H.261 can be improved on quality and some
new codes may also be developed.
References
[1] Michael Igarta” A STUDY OF MPEG-2 AND H.264
VIDEO CODING”, December 2004
[2] Matt Buchanan of Gizmodo.com at
“http://gizmodo.com/5093670/giz- ‐explains--‐every--
‐video--‐ format--‐you--‐need--‐to--‐know &
http://www.shallowsky.com/linux/video ormats.html”
[3] Dave Marshall”
http://www.cs.cf.ac.uk/Dave/Multimedia/node250.html
” 10/4/2001
[4] Victor Lo, City University of Hong
Kong”http://www.cs.cf.ac.uk/Dave/Multimedia/node25
0.html”
[5] Paramjeet Kaur, Er. Sugandha Sharma, Er. Satinder pal
Singh Ahuja, “Latest Video Compression Standard
H.264 Within Video Surveillance”, International
Journal of Advanced Research in Computer Science and
Software Engineering
Author Profile
Aman Gupta, Department of Computer
Science, Suresh Gyan Vihar University, Jaipur,
Rajasthan, India
Mr. Dinesh Goyal, Department of Computer
Science, Suresh Gyan Vihar University, Jaipur,
Rajasthan, India
Mr. Naveen Hemrajani, Department of
Computer Science, Suresh Gyan Vihar
University, Jaipur, Rajasthan, India
338

Performance Analysis of Various Video Compression Techniques

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Performance Analysis of Various Video Compression Techniques