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The factors limiting the efficient delivery and presentation of multimedia material in the cellular environment are, among others, the low bandwidth of the transmission channel(s) and the modest capabilities of truly mobile terminals. The ACTS1 project MObile Media and ENTertainment Services (MOMENTS) is leveraging the usage of state-of-the-art techniques(More)
The recentH.264/AVCvideo coding standard provides a higher coding efficiency than previous standards. H.264/AVCachieves a bit rate saving of more than 50 % with many new technologies, but it shows very heavy computational complexity. In this paper, a fast mode decision scheme for inter-frame coding is proposed to reduce the computational complexity for(More)
Block-based motion estimation (ME) has been widely used in various video coding standards due to its effectiveness removing temporal redundancy. It plays a key role in the transmission and storage of video signals at reduced bit rates. In this paper, a novel motion estimation algorithm is proposed to enhance video quality by reflecting enlarging and(More)
In the context of multimedia and hypermedia systems, the aspect of including mobile links to a stationary infrastructure and the use of mobile data terminals are gaining increasingly in importance. The current advancements of hardware, software, and telecommunications technology allow multimedia systems to be implemented in mobile environments.(More)
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