As communications get digital there is an increased use of image and video processing in embedded multimedia applications. Digital signal processors (DSPs) provide excellent computing platforms for these applications not only due to their superior signal processing performance compared to other processor architectures, but also because of the high levels of integration and very low-power consum...

Closed-loop video rendering implies generating video streams in compressed form given as input video streams that are in compressed form such as JPEG or MPEG bit streams. Closed-loop video rendering has signi cant advantages over open-loop schemes including reduced storage requirements which in turn reduces memorydisk swapping time that constitutes a large portion of the time spent in the deskt...

Compressed Video Enhancement using Regularized Iterative Restoration Algorithms Passant Vatsalya Karunaratne Many applications, ranging from scienti c applications to consumer electronics products, use the acquisition and processing of digital video. The acquisition, compression, transmission, and format and rate conversion of an information carrying video signal degrades the accurate represent...

The increased availability and usage of multimedia information have created a critical need for efficient multimedia processing algorithms. These algorithms must offer capabilities related to browsing, indexing, and retrieval of relevant data. A crucial step in multimedia processing is that of reliable video segmentation into visually coherent video shots through scene change detection. Video s...

This paper presents video stabilization and motion detection using Matlab Simulink. Simulink is a classroom learning tool that offers an environment for multi-domain simulation and model-based design for dynamic and embedded systems. The project utilizes that tool to solve not only a problem common to amateur videos but also a situational awareness issue. The stabilization process starts with c...

The successful development of video-based services and applications in mobile environments requires adopting integrative approaches that jointly address video signal processing and networking issues. Multimedia data characteristics, coding standards and functionalities, as well as network protocols performance and channel behavior are some of the key aspects that need to be carefully examined i...

This contribution focuses on different topics covered by the special issue titled ‘Hardware Implementation of Machine vision Systems’ including FPGAs, GPUS, embedded systems, multicore implementations for image analysis such as edge detection, segmentation, pattern recognition and object recognition/interpretation, image enhancement/restoration, image/video compression, image similarity and ret...

Introduction: New technology is creating large stores of digital video. Real time processing of these huge data sets is extremely challenging; retrospective or forensic analysis creates even greater problems when one must rapidly examine hours or days of video from thousands of cameras. We develop a new method for controlling processing, so that available resources are directed at the most rele...

As more and more multimedia content is delivered and stored in the MPEG-2 format, there is an increasing interest in developing processing techniques that can be applied directly to the compressed domain. In applications such as video browsing, picture in picture and in the forthcoming broadcast of high definition digital television (HDTV) to the home there is a need for spatial downscaling of ...

This article will first describe some recent advances related to multimedia communications over mobile wireless links, including some contemporary communication and networking technologies, mobile devices technologies for receivers, and related signal processing technologies to enhance the performance of multimedia communications. Through the analysis of these recent advances, this article will...