A video signal requires a very large number of bits if it is represented in an uncompressed form. This makes many video applications not possible, due to the limited bandwidth of communication channels and the limit of the storage medium. Therefore, video coders that compress the video signal so that it could be represented with a smaller number of bits are used in all digital video application...

Communication and multimedia have been developed rapidly in recent years. Digital media and services found in daily life include, such as digital cameras, VCD (Video Compact Disc), DVD (Digital Video Disc), HDTV (High-Definition TeleVision) and video conferences. Several well-known compression schemes, such as Differential Pulse Code Modulation (DPCM)-based method (Habibi & Hershel, 1974), DCT-...

OF THE CAPSTONE PROJECT Sparse Image and Video Recovery Using Gradient Projection for Linearly Constrained Convex Optimization by Daniel Thompson May 2011 University of California, Merced Abstract This project concerns the reconstruction of a signal, which corresponds to either an image or a temporally-varying scene. Signal recovery can be accomplished through finding a sparse solution to an `2...

It is assumed that high performance and quality, especially in the case of signal transmission, will lead to great acceptance usability [...]

Data hiding in video is an important research issue as the traditional methods are error prone and leads to distortion. However, most of the video data hiding methods utilize uncompressed video data. Recent video data hiding techniques are focused on the characteristics generated by video compressing standards. A new blind data hiding method is proposed based on a novel concept of forbidden zon...

The article focuses on the problem of audio signal quality during video conferences. effect noise and intelligibility speech is described. Analysis reduction in real time has been carried out. main problems arising digital processing are highlighted. General methods reducing considered disadvantages classical revealed. eliminating with a variable frequency band by using formulated. There substa...