Motion Vector Essay

2583 words - 11 pages

International Journal of Engineering Trends and Technology- Volume3Issue3- 2012

Hiding Messages Using Motion Vector
Technique In Video Steganography
P.Paulpandi1, Dr.T.Meyyappan,M.sc.,M.Phil.,M.BA.,Ph.D2
Research Scholar1, Associate professor2
Department of Computer Science & Engineering,
Alagappa University,Karaikudi.
Tamil Nadu,India.

Abstract- Steganography is the art of hiding information
in ways that avert the revealing of hiding
messages.Video files are generally a collection of
images. so most of the presented techniques on images
and audio can be applied to video files too. The great
advantages of video are the large amount of data that
can be hidden inside and the ...view middle of the document...

Here we are
embedding data in video frames.
Cryptography protects information by
transforming it into an unreadable format. It is useful
to achieve 1from Greek, it literally means”covered
writing” confidential transmission over a public
network. The original text, or plaintext, is converted
into a coded equivalent called cipher text via an
encryption algorithm. Only those who possess a
secret key can decipher (decrypt) the cipher text into
plaintext. Steganography in video can be divided into
two main classes. One is embedding data in
uncompressed raw video, which is compressed
later[2,3].
The other, which is more difficult, tries to
embed data directly in compressed video
stream[4,5,6]. Advanced Encryption Standard (AES)
is a specification for the encryption of electronic data.
The algorithm described by AES is a symmetric-key
algorithm, meaning the same key is used for both
encrypting and decrypting the data.
The paper is organized as follows. The
related works that are done on the steganographic
techniques and encryption techniques are provided in
the section 2. The proposed research contribution
with the motion vector technique, video compression,
and extraction is placed in the section 3. The results
and the discussions are given in the section 4.The
paper is concluded with the results in section 5.

ISSN: 2231-538 http://www.internationaljournalssrg.org

Page 361

International Journal of Engineering Trends and Technology- Volume3Issue3- 2012

II. RELATED WORK
This section gives a brief overview on the
related work done on the video compression using
adaptive block based compression and Motion vector
based on the MPEG-2 video Steganography.
Moreover, the encryption algorithm used for text
encryption is discussed.
F.A.P.Petitcolas,R.J. Anderson and M.G.
Kuhn presented method of cryptography works to
mask the content of a message,steganography works
to mask the very existence of the message[1] and
Niels Provos and Peter Honey man presented the
Greek used to pass secret information by writing in
wax-covered tablets:wax was first scraped off a
tablet, the secret message was written on the tablet,
and then the tablet was covered again with the wax
[4].
Mobasseri presented the method of a message
either encrypted or unencrypted, can be hidden in a
computer video file (containing the picture of, for
instance, an innocent 2 year old baby) and
transmitted over the Internet, a CD or DVD, or any
other medium [5].Shiguo lian provide the main goal
of steganography is to communicate securely in a
completely undetectable manner and to avoid
drawing suspicion to the transmission of a hidden
data [4].

III. PROPOSED WORK
A. Video Compression
Video compression uses modern coding
techniques to reduce redundancy in video data. Video
compression typically operates on square-shaped
groups of neighboring pixels, often called macro
blocks. These pixel groups or blocks of pixels are
compared...

Other Essays Like Motion Vector

Control of Prothetic Arm Essay

4790 words - 20 pages works of Graupe et al. [3], [4], models the EMG signals as a stationary time series ( A R model), and the model parameters for each of the prespecilied motion classes are identified to form a reference parameter set. The measured EMG signals are classified into one of several prespecified motion classes, either by parameter vector space methods or parallel filtering methods. The second, based on the works of Wirta et ai. [ 5 ] , uses many

Scientific Idea Summaries Essay

528 words - 3 pages an "evaporative coating") before it is put into motion. There is a chemical inside the bird's gut (below the pivot) called dichloromethane which has a very high vapor pressure. Because of the difference in pressure and temperature, the bird's center of gravity changes as it is rocking back and forth. Because of the center of gravity shift, the back and forth motion grows more drastic until the head dips into the water- restarting the cycle

Wimax Technology

5610 words - 23 pages motion vector search is ___ 1. 312 + 162 + 1 2. 312 + 162 + 3 3. 312 - 162 3 4. 312 X 162 X 3 92. A chapter version suboptional but still usually effective is called _________. 1. Logarithmic search 2. Sequential search 3. Motion vector 4. Sum of Absolute Difference(SAD) 93. The difference of the two corresponding macro blocks is the _____________ 1. Prediction error 2. Mean square error 3. Macro block error 4. Spatial Redundancy 94. The difference

Hydrogen Energy

1149 words - 5 pages * Reducing CO2 emissions and improving security of energy supply are the two main drivers for hydrogen fuel. * An important advantage of hydrogen is that it can be produced from a range of primary energy sources, either fossil fuels or renewable. * Hydrogen can be used to generate electricity using fuel cells, or motion * using the simpler but less efficient internal combustion engine. * While hydrogen could be used as a fuel in a wide

Physics of Soccer

2220 words - 9 pages the back of the goal, or the friction between the ball and the surface being played on, physics is an imperative part of the game of soccer. Soccer can be traced back as far as 2000 years ago in regions of China, Japan and even Rome. However, soccer really began to take shape in England around 1863 (FIFA). Throughout this paper, soccer will be analyzed in terms of friction, Newton’s three laws of motion, and the principles of aerodynamics

Nanotribology

1846 words - 8 pages to vector in nematics. However, director and vector are different. The nematic is quite ordered leading to the existence of director in the conventional state. In TFL, the alignments and orientation of molecules are hindered by external sources, that the parameters are strongly dependent on the surface force field of the walls and other conditions. Molecular orientations can be rearranged in both of them. This similarity makes it possible to use

Modern Plate Tectonic Theory in My View

3632 words - 15 pages . scientists argued that the westward component of every plate's motion is due to Earth's rotation and the tidal friction of the moon. As the Earth spins eastward beneath the moon, they say, the moon's gravity ever so slightly pulls the Earth's surface layer back westward. 5.4. Relative significance of each mechanism The actual vector of a plate's motion must necessarily be a function of all the forces acting upon the plate. However, therein remains the

Pressure Distribution and Lift on a Piercy Aerofoil

3721 words - 15 pages a force generated by turning a moving fluid" - Glenns Research Center Theory. Lifting effect of the deflection The differential pressure combined with the reaction force of the deflection (Newton's first law of motion), generates lift. The total lift of the airfoil is noted by a single vector that is perpendicular to the airflow. Lift Notation Resulting Lifting Force As shown in this section, two forces result from the movement of

Generating Real-Time Visual Meaning for Live Indian Drumming

2181 words - 9 pages progressed. Once created, the motion of these particles was governed by a dynamic vector field, governed by a distribution of fluid cells which determined how forces are exerted in their vicinity, in response to the number, distribution, and motion of elements in and out of their domain. The energy introduced to the system by ETabla strikes excited secondary behaviors under the control of the visual controller. By properly modifying the

Hydrofoils And How They Work

1587 words - 7 pages What is a hydrofoil? A hydrofoil is a watercraft that is supported on ski-like pontoons while in motion, with the bulk of the hull remaining entirely above the water (Encarta Encyclopedia 2002). Hydrofoils were first seen about in 1869. Emmanuel Denis Farcot was issued a patent on a boat that he had developed to go faster through the water because of less resistance. If you look at his design, he was using many little foils along the side of his

A Fusion Approach for EffiCient Human Skin Detection

5485 words - 22 pages feature vector for the smoothed 2-D histogram, , . The smoothed is represented by the combination of and , at pixel is 2-D histogram-based skin segmentation, given as Fig. 5. Gaussian model. 2) Gaussian Model: The Gaussian model is a sophisticated model that is capable of describing complex-shaped distributions and is popular for modeling skin-color distributions. The threshold skin-color distribution in the 2-D histogram is modeled

Related Papers

Gdgdfdfsfsfsd Essay

946 words - 4 pages velocity. Uniformly accelerated motion, velocity-time and position-time graphs, for uniformly accelerated motion (graphical treatment). • Elementary concepts of differentiation and integration for describing motion. Scalar and vector quantities: Position and displacement vectors, general vectors, general vectors and notation, equality of vectors, multiplication of vectors by a real number; addition and subtraction of vectors. Relative

General Physics Reading Questions All Chapters

1990 words - 8 pages one force that acts on an object, the subsequent motion of the object is then determined by the net force acting on the object. The net force is the vector sum of all the forces that are acting on the object. • Newton’s first law says that an object acted on by zero net force moves in a straight line with constant speed or it remains at rest if it was at rest. • Velocity vector is a measurement of both speed and the direction of an objects

Sir Isaac Newton Essay

936 words - 4 pages being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector. This is the most powerful of Newton's three laws as it explains how velocities change when forces are applied. So according to Newton, a force will cause a change in velocity (an acceleration). Newton's Third Law of Motion III. For every action there is an equal and opposite reaction. This law

Control Architecture And Algorithms Of Biped Robot

2371 words - 10 pages gravity vector to use in the control law. When the starting conditions are satisfied, the robot is put down and starts the moving stage. 2- The robot has to realize a desired motion pattern. The control law uses the gravity vector corresponding to the actual situation and computes the right currents to send to the motors. A specific set of gains is available for this configuration. Fig11. ORCCAD Robot-task : bipMove The Robot-Task bipMove (fig.11