Channel adapted scan-based multiple description video coding
نویسندگان
چکیده
In [1] we proposed a balanced Multiple Description Coding (MDC) scheme based on the Discrete Wavelet Transform (DWT). This MDC includes an efficient bit allocation procedure that dispatches the source image redundancy between different channels. The amount of redundancy is controlled according to the Bit Error Rate of the different channels. Here, we propose to extend this approach for low bit rate video transmission. The proposed method uses the 3D scan-based DWT of [2] and involves scan-based MDC with rate or quality control.
منابع مشابه
A Method to Reduce Effects of Packet Loss in Video Streaming Using Multiple Description Coding
Multiple description (MD) coding has evolved as a promising technique for promoting error resiliency of multimedia system in real-time application programs over error-prone communicational channels. Although multiple description lattice vector quantization (MDCLVQ) is an efficient method for transmitting reliable data in the context of potential error channels, this method doesn’t consider disc...
متن کاملMultiple Description Video Coding for Umts
We consider the problem of efficient real time video transmission over UMTS channels. Such a problem involves good compression rates and effectiveness in presence of channel failures. We propose a balanced MDC scheme for 3D scan-based DWT video coding. This MDC includes an efficient bit allocation procedure that dispatches the source video redundancy between the different channels[1, 2]. We pro...
متن کاملMultiple description coding for Internet video streaming
We present a system for video streaming well adapted to the unpredictable and varying nature of Internet. The proposed system uses a superposition of several Multiple Description Coding (MDC) schemes, each with N = 2 descriptions, to reach rate scalability and adaptability to varying channel conditions. Each MDC (N = 2 descriptions), that we will call base MDC has a bit rate and a redundancy as...
متن کاملChannel adapted multiple description coding scheme using wavelet transform
A challenge of image communication over unreliable channels is to achieve good compression rates and be effective in presence of channel failures. In this work we use the Multiple Description Coding (MDC) techniques, based on Wavelet Transforms, that have been shown to be powerful against channel failures. We propose a bit allocation procedure that dispatch redundancy between the different chan...
متن کاملSchemes for Multiple Description Coding of Stereoscopic Video
This paper presents and compares two multiple description schemes for coding of stereoscopic video, which are based on H.264. The SS-MDC scheme exploits spatial scaling of one view. In case of one channel failure, SS-MDC can reconstruct the stereoscopic video with one view low-pass filtered. SS-MDC can achieve low redundancy (less than 10%) for video sequences with lower inter-view correlation....
متن کامل