Because of limitation of low power and computational ability in mobile video devices, it is significant to develop energy-efficient wireless video compression methods for mobile video systems. In this paper, a new approach to low complexity wireless video compression is proposed, based on Wyner-Ziv coding theorem. The proposed method encodes video only by intracoding techniques and detection of...

Resolution enhancement for video sequences has always been an attractive application in multimedia signal processing. “Superresolution” methods, that combine non-redundant information from a set of low-resolution images, are beginning to be applied to the most popular video compression standard, MPEG. Bayesian approaches, which are very successful for raw video, largely fail for MPEG video, sin...

The file size and picture quality are factors to be considered for streaming, storage and transmitting videos over networks. This work compares Cinepak, Intel, Microsoft Video and Indeo Codec for video compression. The peak signal to noise ratio is used to compare the quality of such video compressed using AVI codecs. The most widely used objective measurement by developers of video processing ...

Introduction The primary design objective in video compression is to minimize the average number of bits used to represent a video-sequence in digital form while maintaining sufficient video quality. The high degree of redundancy that exists between successive frames of video sequences makes it possible to achieve high compression ratios. In order to exploit the spatial and temporal redundancy ...

An alternative to conventional techniques for compressing video data of moving objects is described. The method, known as track-based compression (TBC), detects, associates, and tracks moving objects between frames, sending only a small chip or ID around the moving object once the track has been established. The compression ratio achievable depends on scene content, sensor geometry, the degree ...

A scalable video compression algorithm was designed and implemented. Costs in efficiency and complexity currently associated with requiring scalability to be provided by a video compression algorithm are discussed. The method of Scalable Motion Compensation is presented as a means by which a more efficient scalable algorithm can be constructed at the cost of greater complexity. The design and p...

252 Abstract— Image and video compression is one of the major components used in video-telephony, videoconferencing and multimedia-related applications where digital pixel information can comprise considerably large amounts of data. Management of such data can involve significant overhead in computational complexity and data processing. Compression allows efficient utilization of channel bandwi...

The implementation of software based video decoders is an advantageous solution over traditional dedicated hardware real time systems. The main reason of this fact is the possibility of decoding several different video compression standards, at different levels and profiles, by just changing the software while using the same hardware platform, main memory, and interfaces. But, simultaneously gu...

Automatic video indexing is an important feature in the design of a video database. Recently, compressed domain techniques have become popular due to their inherent advantages of efficiency and lower complexity. On the other hand, wavelet transform has emerged as a powerful tool for efficient compression of visual information. A variety of wavelet-based video compression techniques have been re...

The motion-estimation search range required for interframe encoding with the MPEG-2 video compression standard depends on a number of factors, including video content, video resolution, elapsed time between reference and predicted pictures, and, just as significantly, pragmatic considerations in implementing a cost-effective solution. In this paper we present a set of experimental results that ...