2005 Digest of Technical Papers. International Conference on Consumer Electronics, 2005. ICCE., 2005
We propose a robust and scalable transmission scheme based on Multiple Description (MD) coding. E... more We propose a robust and scalable transmission scheme based on Multiple Description (MD) coding. Each description is encoded using a standard video codec such as . This scheme provides equal or better robustness with respect to other solutions such as Forward Error Correction (FEC), at lower system complexity; also, it provides scalability by selectively dropping descriptions. 1
IEEE 6th Workshop on Multimedia Signal Processing, 2004., 2004
In this paper we propose a system based on Multiple Description coding (MD) to stream video over ... more In this paper we propose a system based on Multiple Description coding (MD) to stream video over lossy or variable bandwidth networks. MD coding can be integrated in several ways into existing state-of-the-art video codecs, as MPEG or the new H.264. The proposed scheme ...
1. INTRODUCTION Next generation mobile devices will offer multimedia capabilities, providing to t... more 1. INTRODUCTION Next generation mobile devices will offer multimedia capabilities, providing to the end user different kinds of new services, like multimedia messaging and videoconferencing. In fact, the 3GPP standardization committee for the third generation ...
This paper presents a novel technique to reduce the motion estimation (ME) complexity in H.264/AV... more This paper presents a novel technique to reduce the motion estimation (ME) complexity in H.264/AVC video coding. A low complexity context-aware controller is added to a basic search engine; at coding time the controller extracts from the search engine partial results information on the input signal statistics, using them to dynamically configure the ME search parameters, such as number of reference frames, valid block modes and search area. Unnecessary computations and memory accesses can be avoided, decreasing ME complexity while keeping unaltered coding efficiency for a wide range of applications: bit-rates from tens of kbits/s to tens of Mbits/s and video formats from QCIF to CCIR. The context-aware control can be used with any ME search engine and in the paper is successfully applied to Full Search and fast ME, as EPZS and UMHS, in the JM10 software model of H264/AVC. 1
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Papers by F. Rovati