MPEG-4 is an ISO/IEC standard being developed by MPEG (Moving Picture Experts Group), the committee which also developed the Emmy Award winning standards known as MPEG-1 and MPEG-2. These standards made interactive video on CD-ROM and Digital Television possible. MPEG-4 will be the result of another international effort involving hundreds of researchers and engineers from all over the world. MPEG-4, whose formal ISO/IEC designation will be ISO/IEC 14496, is to be released in November 1998 and will be an International Standard in January 1999.
....etc

[:=Read Full Message Here=:]

Seminar Report on Audio Compression


INTRODUCTION

Large storage requirements limit the amount of audio data that can be stored on compact discs, flash memory, and other media. Large file sizes also give rise to long download times for retrieving songs from the internet. For these reasons (and others), there is considerable interest in shrinking the storage requirements of sampled sound.

Simple way of looking at audio compression

An audio signal can be compressed using digital filter. Digital fi ....etc

[:=Read Full Message Here=:]

INTRODUCTION
The subject of this work is image compression with fractals. Today JPEG has become an industrial standard in image compression. Further researches are held in two areas, wavelet based compression and fractal image compression. The fractal scheme was introduced by Michael F Barnsley in the year 1945.His idea was that images could be compactly stored as iterated functions which led to the development of the IFS scheme which forms the basis of fracta ....etc

[:=Read Full Message Here=:]

Speech Compression using GSM RPE-LTP
Presented By:
Faiza Nawaz Bisma Hashmi Mehrin Kiani
Introduction to GSM
The Global System for Mobile Communications is the most popular standard for mobile phones in the world. GSM service is used by over 2 billion people across more than 212 countries and territories. The ubiquity of the GSM standard makes international roaming very common between mobile phone operators. GSM differs significantly from its predecessors in that both signaling and speech channels are Dig ....etc

[:=Read Full Message Here=:]

MPEG-2 VIDEO COMPRESSION TECHNIQUE

Abstract:
MPEG-2 is an extension of the MPEG-1 nternational standard for digital compression of audio and video signals.MPEG-1 was designed to code progressively scanned video at bit rates up to about 1.5 Mbit/s for applications such as CD-I (compact disc interactive). MPEG-2 is directed at broadcast formats at higher data rates; it provides extra algorithmic tools' for efficiently coding interlaced video supports a wide range of bit rates and provides ....etc

[:=Read Full Message Here=:]

Presented by:
Ankit Saroch
Rahul Jindal
Kushal


ABSTRACT
In this project we have implemented the Baseline JPEG standard using MATLAB.
We have done both the encoding and decoding of grayscale images in JPEG.
With this project we have also shown the differences between the compression ratio and time spent in encoding the images with two different approaches viz-a-viz classic DCT and fast DCT. The project also shows the effect of c ....etc

[:=Read Full Message Here=:]

An image defined in the real world is considered to be a function of two real variables say x,y.

Before going to processing an image, it is converted into a digital form. Digitization includes sampling of image and quantization of sampled values.

After converting the image into bit information, processing is performed.

This processing technique may be,
Image enhancement
Image reconstruction
Image compression

Image enhancement refers to accentuation, or sharpening, of image features such as boundaries.

Image restoration is co ....etc

[:=Read Full Message Here=:]

Hi am GEETHU would like to get details on hierarchical prediction and context adaptive coding for lossless color image compression ppt downlmad ..My friend Aathira said hierarchical prediction and context adaptive coding for lossless color image compression ppt downlmad will be available here .... Please help me... ....etc

[:=Read Full Message Here=:]

need some ideas for implementing of vcr engine in two wheeler si engines ....etc

[:=Read Full Message Here=:]

Data Compression

Abstract :

It is very interesting that data can be compressed because it insinuates that information that we generally pass on to each other can be said in shorter information units (infos). Instead of saying Ëœyesâ„¢ a simple nod can do the same work, but by transmitting lesser data. In his 1948 paper, A Mathematical Theory of Communication, Shannon established that there is a fundamental limit to lossless data compression. This limit, called the entropy rate, is denoted by H. The exact value of H depends on the ....etc

[:=Read Full Message Here=:]