The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a new scheme for robust video transmission over packet erasure wireless channels based on Wyner-Ziv coding of motion regions. The multipath fading and shading of the wireless channels usually lead to loss or erroneous video packets which on occasions result in some spontaneous drop in video quality. Existing approaches with forward error correction (FEC) and error concealment have...
Variable length decoding (VLD) is one of the most computationally expensive parts in a video decoder. Since VLD is an inherent bit-serial operation and is the first stage of the whole decoding task, the overall decoding system performance is determined by its throughput and efficiency. In this paper, a VLD scheme is presented. The proposed VLD tables need less than 6Kbytes memory space, and the decoding...
Video decoders are an important component in modern networked multimedia systems. TMS320DM642 is suitable for implementation of embedded video decoder. However, the high data rate, large sizes, and distinctive memory access patterns of MPEG-4 video decoders exert a particular strain on cache. This paper proposes an optimization method to allocate the memory of TMS320DM642. In cache-SRAM-SDRAM structure,...
Variable length decoding (VLD) is inherent bit-serial operation and is the first stage of the whole video decoding task, the overall decoding system performance is determined by its throughput and efficiency. In this paper, a scheme for decoding of discrete cosine transform (DCT) coefficients is presented The DCT VLD tables are split into two different tables: the one with 0-3 leading zeros and the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.