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+---- Thread: Wavelet Video Processing Technology (/showthread.php?tid=54888)
Wavelet Video Processing Technology - Shamilshaji - 10-04-2017
Wavelet Video Processing Technology
Uncompressed multimedia data requires considerable storage capacity and transmission bandwidth. Despite rapid progress in mass storage density processor speeds and digital communication system performance, demand for data storage capacity and data transmission bandwidth continues to outstrip the capabilities of available technologies. The recent growth of data intensive multimedia-based web applications have not only sustained the need for more efficient ways to encode signals and images but have made compression of such signals central to storage and communication technology.
For still image compression, the joint photographic experts group (JPEG) standard has been established. The performance of these codes generally degrades at low bit rates mainly because of the underlying block-based Discrete cosine Transform (DCT) scheme. More recently, the wavelet transform has emerged as a cutting edge technology, within the field of image compression. Wavelet based coding provides substantial improvements in picture quality at higher compression ratios. Over the past few years, a variety of powerful and sophisticated wavelet based schemes for image compression have been developed and implemented. Because of the many advantages, the top contenders in JPEG-2000 standard are all wavelet based compression algorithms.
Image Compression
Image compression is a technique for processing images. It is the compressor of graphics for storage or transmission. Compressing an image is significantly different than compressing saw binary data. Some general purpose compression programs can be used to compress images, but the result is less than optimal. This is because images have certain statistical properties which can be exploited by encoders specifically designed for them. Also some finer details in the image can be sacrificed for saving storage space.
Compression is basically of two types.
1. Lossy Compression
2. Lossless Compression.
Lossy compression of data concedes a certain loss of accuracy in exchange for greatly increased compression. An image reconstructed following lossy compression contains degradation relative to the original. Often this is because the compression scheme completely discards redundant information. Under normal viewing conditions no visible is loss is perceived. It proves effective when applied to graphics images and digitized voice.
Lossless compression consists of those techniques guaranteed to generate an exact duplicate of the input data stream after a compress or expand cycle. Here the reconstructed image after compression is numerically identical to the original image. Lossless compression can only achieve a modest amount of compression. This is the type of compression used when storing data base records, spread sheets or word processing files.
Wavelet Video Processing Technology - harishpanchal_18 - 10-04-2017
Introduction
Uncompressed multimedia data requires considerable storage capacity and transmission bandwidth. Despite rapid progress in mass storage density processor speeds and digital communication system performance, demand for data storage capacity and data transmission bandwidth continues to outstrip the capabilities of available technologies. The recent growth of data intensive multimedia-based web applications have not only sustained the need for more efficient ways to encode signals and images but have made compression of such signals central to storage and communication technology.
For still image compression, the joint photographic experts group (JPEG) standard has been established. The performance of these codes generally degrades at low bit rates mainly because of the underlying block-based Discrete cosine Transform (DCT) scheme. More recently, the wavelet transform has emerged as a cutting edge technology, within the field of image compression. Wavelet based coding provides substantial improvements in picture quality at higher compression ratios. Over the past few years, a variety of powerful and sophisticated wavelet based schemes for image compression have been developed and implemented. Because of the many advantages, the top contenders in JPEG-2000 standard are all wavelet based compression algorithms.
Image Compression
Image compression is a technique for processing images. It is the compressor of graphics for storage or transmission. Compressing an image is significantly different than compressing saw binary data. Some general purpose compression programs can be used to compress images, but the result is less than optimal. This is because images have certain statistical properties which can be exploited by encoders specifically designed for them. Also some finer details in the image can be sacrificed for saving storage space.
Compression is basically of two types.
1. Lossy Compression
2. Lossless Compression.
Lossy compression of data concedes a certain loss of accuracy in exchange for greatly increased compression. An image reconstructed following lossy compression contains degradation relative to the original. Often this is because the compression scheme completely discards redundant information. Under normal viewing conditions no visible is loss is perceived. It proves effective when applied to graphics images and digitized voice.
Lossless compression consists of those techniques guaranteed to generate an exact duplicate of the input data stream after a compress or expand cycle. Here the reconstructed image after compression is numerically identical to the original image. Lossless compression can only achieve a modest amount of compression. This is the type of compression used when storing data base records, spread sheets or word processing files.
Wavelet Video Processing Technology - rijintom - 10-04-2017
The biggest obstacle to the multimedia revolution is digital obesity. This is the blot that occurs when pictures, sound and video are converted from their natural analog form into computer language for manipulation or transmission. In the present explosion of high quality data, the need to compress it with less distortion of data is the need of the hour. Compression lowers the cost of storage and transmission by packing data into a smaller space. One of the hottest areas of advanced form of compression is wavelet compression. Wavelet Video Processing Technology offers some alluring features, including high compression ratios and eye pleasing enlargements. Wavelet-based coding provides substantial improvement in picture quality at low bit rates because of overlapping bases function and better energy compaction property of wavelet transforms. Because of the inherent multi resolution nature wavelet based codes facilitate progressive transmission of images thereby allowing variable bit rates. The JPEG-2000 standard incorporates wavelet technology. Interesting issues like obtaining accurate models of images, optimal representations of such models and rapidly computing such optimal representation are the grand challenges facing the data compression community. Interaction of harmonic analysis with data compression, joint source channel coding, image coding based on models of human perception, scalability robustness, error resilience, and complexity are a few of the many outstanding challenges in image coding to be fully resolved and may affect image data compression performance in the years to come.
Wavelet Video Processing Technology - anish m jose - 10-04-2017
The biggest obstacle to the multimedia revolution is digital obesity. This is the blot that occurs when pictures, sound and video are converted from their natural analog form into computer language for manipulation or transmission. In the present explosion of high quality data, the need to compress it with less distortion of data is the need of the hour. Compression lowers the cost of storage and transmission by packing data into a smaller space. One of the hottest areas of advanced form of compression is wavelet compression. Wavelet Video Processing Technology offers some alluring features, including high compression ratios and eye pleasing enlargements. Wavelet-based coding provides substantial improvement in picture quality at low bit rates because of overlapping bases function and better energy compaction property of wavelet transforms. Because of the inherent multi resolution nature wavelet based codes facilitate progressive transmission of images thereby allowing variable bit rates. The JPEG-2000 standard incorporates wavelet technology. Interesting issues like obtaining accurate models of images, optimal representations of such models and rapidly computing such optimal representation are the grand challenges facing the data compression community. Interaction of harmonic analysis with data compression, joint source channel coding, image coding based on models of human perception, scalability robustness, error resilience, and complexity are a few of the many outstanding challenges in image coding to be fully resolved and may affect image data compression performance in the years to come..
Wavelet Video Processing Technology - projectcrazyaks - 10-04-2017
To get more information about the topic " wavelet video processing technology" please refer the page link below
http://seminarsprojects.net/Thread-wavelet-video-processing-technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technolog-full-report
http://seminarsprojects.net/Thread-wavelet-video-processing-technology?pid=17396
Wavelet Video Processing Technology - echari84 - 10-04-2017
hi friend you can refer these pages to get the details on wavelet video processing technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technolog-full-report
http://seminarsprojects.net/Thread-wavelet-video-processing-technology?pid=17396
Wavelet Video Processing Technology - svariyar - 10-04-2017
hi friend you can refer these pages to get the details on wavelet video processing technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technolog-full-report
http://seminarsprojects.net/Thread-wavelet-video-processing-technology?pid=17396
Wavelet Video Processing Technology - manju das - 10-04-2017
hi friend you can refer these pages to get the details on wavelet video processing technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technology
http://seminarsprojects.net/Thread-wavelet-video-processing-technolog-full-report
http://seminarsprojects.net/Thread-wavelet-video-processing-technology?pid=17396
Wavelet Video Processing Technology - vishwambhar - 10-04-2017
to get information about the topic"Wavelet Video Processing Technology" refer the page link bellow
http://seminarsprojects.net/Thread-wavelet-video-processing-technology--471?pid=57828#pid57828
Wavelet Video Processing Technology - mahe123 - 10-04-2017
to get information about the topic"Wavelet Video Processing Technology" refer the page link bellow
http://seminarsprojects.net/Thread-wavelet-video-processing-technology--471